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Samsung Galaxy M51 Smartphone Review – Large in the mid-range

Huge battery equals huge fun? The Samsung Galaxy M51 is a large mid-range smartphone with a huge 7000-mAh battery. Interestingly, it still does not appear too bulky. So is this a hot tip for those who like a long battery life?
Florian Schmitt, 👁 Florian Schmitt, Andrea Grüblinger (translated by Mark Riege),
Samsung Galaxy M51

Apparently Samsung has made it its mission to close any gaps in the mid-range. While there is already a lot of choice with the Galaxy M21, M31, A41, and A51 models, we now test the newly available Galaxy M51. It particularly draws some attention with its large screen and extremely high-capacity battery.

At 369 Euros (~$434), the M51 costs the same amount from the manufacturer as a Samsung Galaxy A51, even if that is already older and therefore available for cheaper on the Internet. However, the M51 brings a larger display and a significantly higher-capacity battery. This year you also get a flexible camera system in all the Samsung mid-range smartphones, but the interesting thing about the M51 is that it does not use one of Samsung's own Exynos SoCs. Instead the smartphone is run by a Snapdragon 730 from Qualcomm.

So let's take a look at how the Galaxy M51 fares against the in-house competitors and those from other manufacturers.

Samsung Galaxy M51 (Galaxy M Series)
Processor
Qualcomm Snapdragon 730 8 x 2.2 GHz, Kryo 470 Gold / Silver
Graphics adapter
Memory
6144 MB 
Display
6.7 inch 20:9, 2400 x 1080 pixel 385 PPI, capacitive touchscreen, Super AMOLED, Corning Gorilla Glass 3, glossy: yes, 60 Hz
Storage
128 GB UFS 2.0 Flash, 128 GB 
, 128 GB, 106 GB free
Connections
1 USB 2.0, Audio Connections: 3.5-mm audio port, Card Reader: microSD up to 512 GB, 1 Fingerprint Reader, NFC, Brightness Sensor, Sensors: acceleration sensor, gyroscope, proximity sensor, compass
Networking
802.11 a/b/g/n/ac (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5), Bluetooth 5.0, GSM, UMTS, LTE (B1,B2,B3,B4, B5,B7,B8,B12,B17,B20,B26,B28,B38,B40,B41,B66), Dual SIM, LTE, GPS
Size
height x width x depth (in mm): 9.5 x 163.9 x 76.3 ( = 0.37 x 6.45 x 3 in)
Battery
7000 mAh Lithium-Polymer
Charging
fast charging / Quickcharge
Operating System
Android 10
Camera
Primary Camera: 64 MPix f/​1.8, phase comparison AF, LED flash, videos @2160p/​30fps (camera 1); 12.0 MP, f/​2.2, wide-angle lens (camera 2); 5.0 MP, f/​2.2, depth sharpness (camera 3); 5.0 MP, f/​2.4, macro lens (camera 4)
Secondary Camera: 32 MPix f/2.2
Additional features
Speakers: mono speaker at the bottom edge, Keyboard: virtual keyboard, quick charger, USB cable, headset, SIM tool, 24 Months Warranty, SAR value: 0.609 W/​kg (head), 1.446 W/​kg (body); LTE speed: 800 Mb/s (download), 150 Mb/s (upload), fanless
Weight
213 g ( = 7.51 oz / 0.47 pounds), Power Supply: 65 g ( = 2.29 oz / 0.14 pounds)
Price
369 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Comparison Devices

Rating
Date
Model
Weight
Drive
Size
Resolution
Best Price
81 %
10/2020
Samsung Galaxy M51
SD 730, Adreno 618
213 g128 GB UFS 2.0 Flash6.7"2400x1080
80 %
08/2020
Motorola Moto G 5G Plus
SD 765, Adreno 620
207 g64 GB UFS 2.1 Flash6.7"2520x1080
78 %
08/2020
Sony Xperia 10 II
SD 665, Adreno 610
151 g128 GB eMMC Flash6"2520x1080
80 %
01/2020
Samsung Galaxy A51
Exynos 9611, Mali-G72 MP3
172 g128 GB UFS 2.0 Flash6.5"2400x1080
83 %
07/2020
OnePlus Nord
SD 765G, Adreno 620
184 g256 GB UFS 2.1 Flash6.44"2440x1080

Case – Not too bulky

The smartphone is available in white or dark-gray color, with the reflective back appearing quite modest without any extravagant color effects or anything like that. The front shows a modern design with small bezels and a punch-hole camera in the middle of the top display edge.

While in general, the smartphone feels good in the hand, it is less suited for people with small hands, since it is just too large for that with its 6.7-inch screen. The edges are rounded, but some of them still feel clearly noticeable and rough. In some places, the smartphone can be pressed in minimally, and it can also creak when warping it. However, the workmanship leaves a good impression overall.

The large battery takes its toll in terms of the weight. At 213 grams (~7.5 oz), the Samsung Galaxy M51 is the heaviest smartphone in our comparison field. The Sony Xperia 10 II weighs 41 grams (~1.4 oz) less, for example. At 9.5 mm (~0.37 in), the case is also slightly thicker than in other mid-range smartphones. However, the Galaxy M51 still does not feel bulky, overall.

Samsung Galaxy M51
Samsung Galaxy M51
Samsung Galaxy M51
Samsung Galaxy M51
Samsung Galaxy M51
Samsung Galaxy M51
Samsung Galaxy M51

Size Comparison

168 mm / 6.61 inch 74 mm / 2.91 inch 9 mm / 0.3543 inch 207 g0.4564 lbs163.9 mm / 6.45 inch 76.3 mm / 3 inch 9.5 mm / 0.374 inch 213 g0.4696 lbs158.3 mm / 6.23 inch 73.3 mm / 2.89 inch 8.2 mm / 0.3228 inch 184 g0.4057 lbs158.5 mm / 6.24 inch 73.6 mm / 2.9 inch 7.9 mm / 0.311 inch 172 g0.3792 lbs157 mm / 6.18 inch 69 mm / 2.72 inch 8.2 mm / 0.3228 inch 151 g0.3329 lbs

Equipment – Average storage size

With 128 GB of UFS-2.1 storage and 6 GB of RAM, the Galaxy M51 is well-equipped, but the more affordable version of the OnePlus Nord offers even more storage at a similar price. However, while that does not give you the option to expand the storage via microSD, you can do this without any trouble in the Galaxy M51. NFC is also onboard, allowing you to use mobile payment services with your smartphone.

Unfortunately, the USB-C port is internally only connected via USB 2.0, so that data transfer via cable is not that fast. The sensor equipment is at the usual level for this price class.

Top: microphone
Top: microphone
Bottom: 3.5 mm audio port, USB-C port, speaker
Bottom: 3.5 mm audio port, USB-C port, speaker
Left: volume rocker, standby key with fingerprint sensor
Left: volume rocker, standby key with fingerprint sensor
Right: SIM slot
Right: SIM slot

Software – OneUI for smaller hands

Samsung's in-house OneUI 2.1 is based on Android 10 with the security patches on the level of August 2020 at the time of our testing. There should be an update soon for the smartphone to stay secure. In the software design, Samsung took pains to keep most of the operation controls in the lower half of the screen to facilitate using the smartphone with one hand and also offer better access for users with smaller hands. This is a good approach, but of course it does not work for third-party apps.

You have to live with some preinstalled third-party apps, but you can uninstall some of them fairly easily.

Samsung Galaxy M51 software
Samsung Galaxy M51 software
Samsung Galaxy M51 software

Communication and GPS – Fast LTE, no 5G

At 800 Mb/s for downloading and 150 Mb/s for uploading, the Galaxy M51 is fast in the LTE net. However, in contrast to the OnePlus Nord it is not a 5G smartphone. While the Galaxy offers several LTE frequencies, it is not a world-wide phone, so that you should inform yourself beforehand about being able to use the mobile Internet when traveling to far-away countries. The reception quality is also decent indoors around the city.

Wi-Fi 5 is onboard, and the Galaxy M51 achieves decent data rates in our tests with the Netgear Nighthawk AX12 reference router, but it does not reach the speeds of a OnePlus Nord or Motorola Moto G 5G Plus.

Networking
iperf3 Client (receive) TCP 1 m 4M x10
Motorola Moto G 5G Plus
Adreno 620, SD 765, 64 GB UFS 2.1 Flash
666 (646min - 677max) MBit/s ∼100% +98%
OnePlus Nord
Adreno 620, SD 765G, 256 GB UFS 2.1 Flash
650 (563min - 668max) MBit/s ∼98% +93%
Samsung Galaxy M51
Adreno 618, SD 730, 128 GB UFS 2.0 Flash
337 (270min - 351max) MBit/s ∼51%
Sony Xperia 10 II
Adreno 610, SD 665, 128 GB eMMC Flash
326 (263min - 342max) MBit/s ∼49% -3%
Samsung Galaxy A51
Mali-G72 MP3, Exynos 9611, 128 GB UFS 2.0 Flash
298 (185min - 350max) MBit/s ∼45% -12%
Average of class Smartphone
  (5.9 - 1414, n=604)
284 MBit/s ∼43% -16%
iperf3 Client (transmit) TCP 1 m 4M x10
Motorola Moto G 5G Plus
Adreno 620, SD 765, 64 GB UFS 2.1 Flash
646 (590min - 656max) MBit/s ∼100% +99%
OnePlus Nord
Adreno 620, SD 765G, 256 GB UFS 2.1 Flash
563 (275min - 666max) MBit/s ∼87% +73%
Sony Xperia 10 II
Adreno 610, SD 665, 128 GB eMMC Flash
334 (325min - 339max) MBit/s ∼52% +3%
Samsung Galaxy M51
Adreno 618, SD 730, 128 GB UFS 2.0 Flash
325 (318min - 330max) MBit/s ∼50%
Samsung Galaxy A51
Mali-G72 MP3, Exynos 9611, 128 GB UFS 2.0 Flash
297 (189min - 335max) MBit/s ∼46% -9%
Average of class Smartphone
  (9.4 - 1599, n=604)
270 MBit/s ∼42% -17%
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360Tooltip
; iperf3 Client (receive) TCP 1 m 4M x10; iperf 3.1.3: Ø336 (270-351)
; iperf3 Client (transmit) TCP 1 m 4M x10; iperf 3.1.3: Ø325 (318-330)
GPS Test outdoors
GPS Test outdoors
Available satellite networks
Available satellite networks

Indoors, it takes a while until the smartphone finds sufficient satellite signals to determine its position accurately, but then the accuracy is good at 3 meters (~10 ft). It recognizes numerous satellites from various networks.

After our practical test, which is a bike route where we also take the Garmin Edge 520 for comparison, we are able to attest the Samsung Galaxy M51 with good navigation capabilities. While it can even handle challenging places such as the roundabout, it is not displayed at exactly the right place. We also see some smaller inaccuracies in other places, but those who don't depend on absolute precision will probably not notice anything amiss in everyday operation.

Garmin Edge 520 – overview
Garmin Edge 520 – overview
Garmin Edge 520 – roundabout
Garmin Edge 520 – roundabout
Garmin Edge 520 – bridge
Garmin Edge 520 – bridge
Samsung Galaxy M51 – overview
Samsung Galaxy M51 – overview
Samsung Galaxy M51 – roundabout
Samsung Galaxy M51 – roundabout
Samsung Galaxy M51 – bridge
Samsung Galaxy M51 – bridge

Telephone Functions and Voice Quality – Galaxy smartphone with muffled speaker

While Samsung's own phone app focuses on the dial keys, it of course also offers the lists of recent calls and contacts. VoLTE and VoWiFi are supported.

The voice quality of the smartphone is okay: Although the internal earpiece sounds very boomy at maximum volume, at lower volumes our conversation partner is clearly understandable. Our voice is recorded well by the microphone even when we speak at a lower voice. On the other hand, our conversation partner sounds quite muffled via speakerphone and our voice is only transferred when we speak loud enough.

Cameras – A lot of lenses

Picture taken with front camera – good light conditions
Picture taken with front camera – good light conditions
Picture taken with front camera – little light
Picture taken with front camera – little light

The Galaxy M51 offers fairly high-resolution cameras in the back. There are four lenses overall, with one lens only serving to provide depth sharpness information, so you cannot take separate pictures with it. It is not possible to gradually adjust the zoom between the main lens and the wide-angle lens, and you can only switch between them. The macro lens is only used in the special macro mode.

While the main camera has a 64-megapixel resolution, by default it combines four pixels into one, allowing it to record pictures with higher light sensitivity. This results in a 16-megapixel image, which is completely sufficient for most situations. However, if you want to make full use of the camera's 64-megapixel resolution, you can do this via a special mode.

The pictures from the main camera are really well illuminated, but when looking closer, some details can become blurry from time to time. Larger areas appear grainy in the detail, but under bad light conditions and high contrasts, the camera does a good job: Details are reproduced fairly sharp and we like the illumination. The wide-angle lens also does a fairly good job, even if you should not blow up the images too much, since details appear blurry. 

Videos can be recorded at a maximum resolution of 4K and at 30 fps. You have to choose which camera to use before starting the recording. The exposure adjustment works fast and without any visible steps, but the autofocus likes to pump at times.

In front is a camera with a 32-megapixel resolution. It takes decent pictures in good light conditions but is unable to deliver a usable picture in bad light conditions.

Overall, the camera system of the Samsung Galaxy M51 is at a good class level. It is unfortunate that you cannot zoom in several steps switching the lenses, and that the macro lens can only be used in its own mode. This makes the system slightly less adaptable than those of more expensive smartphones.

Image Comparison

Choose a scene and navigate within the first image. One click changes the position on touchscreens. One click on the zoomed-in image opens the original in a new window. The first image shows the scaled photograph of the test device.

Main lens flowerMain lens environmentMain lens low lightUltra wide-angle

Under controlled light conditions in the lab, the main camera produces a decent recording, but some details still appear blurry and colors appear slightly pale. With little light, the object is still fairly recognizable.

ColorChecker
29.1 ∆E
46.1 ∆E
37 ∆E
34.3 ∆E
40.4 ∆E
54.3 ∆E
44.8 ∆E
33 ∆E
31.3 ∆E
27.8 ∆E
53.2 ∆E
54.1 ∆E
29.4 ∆E
43.2 ∆E
26.7 ∆E
56.3 ∆E
33.5 ∆E
41.3 ∆E
62.3 ∆E
63.1 ∆E
48 ∆E
35.4 ∆E
23.8 ∆E
13.3 ∆E
ColorChecker Samsung Galaxy M51: 40.08 ∆E min: 13.35 - max: 63.11 ∆E
ColorChecker
21 ∆E
16.5 ∆E
17.6 ∆E
19.2 ∆E
18.1 ∆E
12.5 ∆E
21 ∆E
15.1 ∆E
15.7 ∆E
9.8 ∆E
11.2 ∆E
16.9 ∆E
7.7 ∆E
13.5 ∆E
14.8 ∆E
9 ∆E
13.5 ∆E
14.6 ∆E
2.2 ∆E
6.7 ∆E
11 ∆E
10.3 ∆E
6.1 ∆E
2.3 ∆E
ColorChecker Samsung Galaxy M51: 12.76 ∆E min: 2.25 - max: 20.97 ∆E

Accessories and Warranty – 24 months of security

Samsung currently does not offer any specific accessories for the Galaxy M51 for later purchase. In addition to the quick charger with USB-C port, the box also contains the corresponding cable, a headset, and a SIM tool.

Samsung offers 24 months of warranty for its smartphones.

Input Devices and Operation – Hardware fingerprint sensor

The Samsung Galaxy M51 provides a hardware fingerprint sensor in the standby button on the right side of the case. If you hold the smartphone in your hand, for right-handed users, the thumb will be automatically placed at this spot, and for left-handed users, the index or middle finger, so the sensor is placed ergonomically correct. Unlocking occurs very fast and reliably, and registering the fingerprints is also completed quickly. You can also unlock the smartphone via face recognition.

The touchscreen works reliably and also responds to very fine inputs. In terms of gestures, Samsung has a lot to offer: For example, the fingerprint sensor can be used to pull the notification area down, you can switch into single-hand mode with a reduced display using a gesture, or you can record screenshots; and tapping twice on the display will activate the smartphone from standby.

Keyboard landscape
Keyboard landscape
Keyboard portrait
Keyboard portrait

Display – AMOLED is a requirement for a Galaxy

Subpixel grid
Subpixel grid

The Samsung Galaxy M51 uses an AMOLED display with the expanded Full HD resolution. The refresh rate is 60 Hz. OnePlus and Motorola have set the bar higher with the 90-Hz displays in their devices. With an activated and fully illuminated brightness sensor, the brightness of the built-in panel is very good, and we measure 632 cd/m² on average. At 94%, the brightness distribution is also fairly even.

Thanks to OLED technology, the separate pixels can be turned off completely, allowing it to display completely black color, which causes colors to appear more vibrant to the eye. So the images on the display of the Galaxy M51 appear vibrant and sharp. 

One disadvantage of OLED displays is the constant flickering, since there is no background illumination that could be dimmed. This means that the pixels have to be turned on and off in quick succession to lower the brightness. In the Galaxy M51 this happens below full brightness at a frequency of 255 Hz, which is quite typical for OLED displays. Those that are sensitive to flickering displays should try out the Galaxy M51 before purchasing it. 

617
cd/m²
625
cd/m²
655
cd/m²
617
cd/m²
626
cd/m²
655
cd/m²
620
cd/m²
626
cd/m²
648
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 655 cd/m² Average: 632.1 cd/m² Minimum: 1.6 cd/m²
Brightness Distribution: 94 %
Center on Battery: 626 cd/m²
Contrast: ∞:1 (Black: 0 cd/m²)
ΔE Color 2.88 | 0.6-29.43 Ø5.8
ΔE Greyscale 5.9 | 0.64-98 Ø6
97.6% sRGB (Calman 2D)
Gamma: 3.441
Samsung Galaxy M51
Super AMOLED, 2400x1080, 6.7
Motorola Moto G 5G Plus
LTPS, 2520x1080, 6.7
Sony Xperia 10 II
OLED, 2520x1080, 6
Samsung Galaxy A51
AMOLED, 2400x1080, 6.5
OnePlus Nord
AMOLED, 2440x1080, 6.44
Screen
24%
21%
0%
10%
Brightness middle
626
461
-26%
591
-6%
589
-6%
529
-15%
Brightness
632
458
-28%
590
-7%
589
-7%
531
-16%
Brightness Distribution
94
93
-1%
97
3%
94
0%
94
0%
Black Level *
0.52
Colorchecker DeltaE2000 *
2.88
1.01
65%
1.42
51%
2.22
23%
2.53
12%
Colorchecker DeltaE2000 max. *
4.97
2.1
58%
3.83
23%
8.24
-66%
4.52
9%
Greyscale DeltaE2000 *
5.9
1.5
75%
2.4
59%
2.6
56%
1.7
71%
Gamma
3.441 64%
2.25 98%
2.215 99%
2.111 104%
2.249 98%
CCT
6415 101%
6701 97%
9014 72%
6508 100%
6462 101%
Contrast
887

* ... smaller is better

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 255 Hz

The display backlight flickers at 255 Hz (Likely utilizing PWM) .

The frequency of 255 Hz is relatively high, so most users sensitive to PWM should not notice any flickering. However, there are reports that some users are still sensitive to PWM at 500 Hz and above, so be aware.

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9588 (minimum: 5 - maximum: 142900) Hz was measured.

Our measurements with the spectral photometer and the CalMAN software show relatively low color deviations from the target value in the "Natural" mode, which can be activated in the settings. This mode also allows you to evaluate printed colors fairly well. In the default "Vibrant" mode, the deviations are noticeably higher, but colors appear more vibrant.

The color-space coverage is only fairly complete in the sRGB color space. However, our measurements can only point out some trends here, since we only measure a two-dimensional color space. 

The response time of the display is fairly short and so also suited well for gaming.

CalMAN Grayscale
CalMAN Grayscale
CalMAN Color Accuracy – natural
CalMAN Color Accuracy – natural
CalMAN Color Accuracy – vibrant
CalMAN Color Accuracy – vibrant
CalMAN Color Space – sRGB
CalMAN Color Space – sRGB
CalMAN Color Space – AdobeRGB
CalMAN Color Space – AdobeRGB
CalMAN Color Space – DCI P3
CalMAN Color Space – DCI P3
CalMAN Saturation
CalMAN Saturation
 

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
6 ms ... rise ↗ and fall ↘ combined↗ 3 ms rise
↘ 3 ms fall
The screen shows very fast response rates in our tests and should be very well suited for fast-paced gaming.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 5 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (24.4 ms).
       Response Time 50% Grey to 80% Grey
10 ms ... rise ↗ and fall ↘ combined↗ 5 ms rise
↘ 5 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers.
In comparison, all tested devices range from 0.8 (minimum) to 636 (maximum) ms. » 9 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (38.7 ms).

The high brightness also allows using the M51 outdoors on bright days. However, we don't recommend looking at the screen in direct sunlight for longer periods, since this is very strenuous for the eyes.

Looking at the display from very steep viewing angles, the contents appear at most minimally darker, but overall they are still very clear.

Viewing angles
Viewing angles
Outdoor use
Outdoor use

Performance – Average fast smartphone

The Qualcomm Snapdragon 730 appears to be a good choice for the Galaxy M51. The mid-range SoC enables processor as well as graphics performances that, while not quite reaching the level of the fastest devices in this price class, are not far below that either. With this, the smartphone does particularly well in everyday operation, without stuttering in the menu or volume adjustment even with more-demanding apps running in the background.

Geekbench 5.1 / 5.2
OpenCL Score 5.2 (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
1149 Points ∼56%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
1095 Points ∼53% -5%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
369 Points ∼18% -68%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
1242 Points ∼60% +8%
Average Qualcomm Snapdragon 730
 
1149 Points ∼56% 0%
Average of class Smartphone
  (369 - 5532, n=36)
2069 Points ∼100% +80%
Vulkan Score 5.2 (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
1007 Points ∼58%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
1022 Points ∼59% +1%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
457 Points ∼26% -55%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
1169 Points ∼68% +16%
Average Qualcomm Snapdragon 730
 
1007 Points ∼58% 0%
Average of class Smartphone
  (72 - 4789, n=40)
1729 Points ∼100% +72%
64 Bit Multi-Core Score (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
1780 Points ∼90%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
1954 Points ∼99% +10%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1405 Points ∼71% -21%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
1966 Points ∼99% +10%
Average Qualcomm Snapdragon 730
  (1647 - 1780, n=2)
1714 Points ∼87% -4%
Average of class Smartphone
  (421 - 4160, n=130)
1976 Points ∼100% +11%
64 Bit Single-Core Score (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
548 Points ∼90%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
596 Points ∼98% +9%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
310 Points ∼51% -43%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
611 Points ∼100% +11%
Average Qualcomm Snapdragon 730
  (542 - 548, n=2)
545 Points ∼89% -1%
Average of class Smartphone
  (124 - 1604, n=130)
573 Points ∼94% +5%
PCMark for Android
Work 2.0 performance score (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
7913 Points ∼84%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
8756 Points ∼93% +11%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
6189 Points ∼66% -22%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
5649 Points ∼60% -29%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
9427 Points ∼100% +19%
Average Qualcomm Snapdragon 730
  (7177 - 7913, n=4)
7599 Points ∼81% -4%
Average of class Smartphone
  (2630 - 15299, n=529)
5991 Points ∼64% -24%
Work performance score (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
9075 Points ∼83%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
9914 Points ∼91% +9%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
7583 Points ∼70% -16%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
6416 Points ∼59% -29%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
10876 Points ∼100% +20%
Average Qualcomm Snapdragon 730
  (8626 - 9075, n=4)
8909 Points ∼82% -2%
Average of class Smartphone
  (1077 - 19989, n=687)
6576 Points ∼60% -28%
3DMark
2560x1440 Sling Shot Extreme (Vulkan) Unlimited Physics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
2862 Points ∼100%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
2802 Points ∼98% -2%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
2444 Points ∼85% -15%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2161 Points ∼75% -24%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
2867 Points ∼100% 0%
Average Qualcomm Snapdragon 730
  (2445 - 2862, n=4)
2700 Points ∼94% -6%
Average of class Smartphone
  (1740 - 4061, n=180)
2667 Points ∼93% -7%
2560x1440 Sling Shot Extreme (Vulkan) Unlimited Graphics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
2180 Points ∼68%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
2844 Points ∼89% +30%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
981 Points ∼31% -55%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1438 Points ∼45% -34%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3185 Points ∼100% +46%
Average Qualcomm Snapdragon 730
  (1731 - 2180, n=4)
1997 Points ∼63% -8%
Average of class Smartphone
  (203 - 9104, n=180)
3071 Points ∼96% +41%
2560x1440 Sling Shot Extreme (Vulkan) Unlimited (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
2302 Points ∼74%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
2814 Points ∼91% +22%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1132 Points ∼36% -51%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1554 Points ∼50% -32%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3108 Points ∼100% +35%
Average Qualcomm Snapdragon 730
  (1851 - 2302, n=4)
2119 Points ∼68% -8%
Average of class Smartphone
  (253 - 6977, n=180)
2735 Points ∼88% +19%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited Physics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3349 Points ∼94%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3457 Points ∼98% +3%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
2541 Points ∼72% -24%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2311 Points ∼65% -31%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3544 Points ∼100% +6%
Average Qualcomm Snapdragon 730
  (2827 - 3349, n=4)
3144 Points ∼89% -6%
Average of class Smartphone
  (573 - 5780, n=534)
2237 Points ∼63% -33%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited Graphics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
2465 Points ∼69%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3165 Points ∼89% +28%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
985 Points ∼28% -60%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1530 Points ∼43% -38%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3556 Points ∼100% +44%
Average Qualcomm Snapdragon 730
  (2085 - 2465, n=4)
2291 Points ∼64% -7%
Average of class Smartphone
  (75 - 10348, n=534)
2189 Points ∼62% -11%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
2619 Points ∼74%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3236 Points ∼91% +24%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1140 Points ∼32% -56%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1654 Points ∼47% -37%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3553 Points ∼100% +36%
Average Qualcomm Snapdragon 730
  (2214 - 2619, n=4)
2437 Points ∼69% -7%
Average of class Smartphone
  (93 - 8386, n=535)
2036 Points ∼57% -22%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited Physics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3339 Points ∼94%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3512 Points ∼99% +5%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
2503 Points ∼70% -25%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2336 Points ∼66% -30%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3555 Points ∼100% +6%
Average Qualcomm Snapdragon 730
  (2702 - 3339, n=4)
3091 Points ∼87% -7%
Average of class Smartphone
  (375 - 5765, n=566)
2162 Points ∼61% -35%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited Graphics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3741 Points ∼70%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
4865 Points ∼91% +30%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1667 Points ∼31% -55%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1993 Points ∼37% -47%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
5357 Points ∼100% +43%
Average Qualcomm Snapdragon 730
  (3101 - 3741, n=4)
3448 Points ∼64% -8%
Average of class Smartphone
  (70 - 20511, n=566)
2989 Points ∼56% -20%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3644 Points ∼76%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
4484 Points ∼93% +23%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1801 Points ∼37% -51%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2060 Points ∼43% -43%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
4815 Points ∼100% +32%
Average Qualcomm Snapdragon 730
  (3002 - 3644, n=4)
3359 Points ∼70% -8%
Average of class Smartphone
  (88 - 11895, n=566)
2489 Points ∼52% -32%
2560x1440 Sling Shot Extreme (ES 3.1) Physics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3331 Points ∼95%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3445 Points ∼98% +3%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
2580 Points ∼74% -23%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2217 Points ∼63% -33%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3503 Points ∼100% +5%
Average Qualcomm Snapdragon 730
  (3210 - 3331, n=4)
3246 Points ∼93% -3%
Average of class Smartphone
  (435 - 5209, n=616)
2117 Points ∼60% -36%
2560x1440 Sling Shot Extreme (ES 3.1) Graphics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
2299 Points ∼70%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
2963 Points ∼90% +29%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
984 Points ∼30% -57%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1473 Points ∼45% -36%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3284 Points ∼100% +43%
Average Qualcomm Snapdragon 730
  (2008 - 2299, n=4)
2212 Points ∼67% -4%
Average of class Smartphone
  (53 - 9167, n=616)
1850 Points ∼56% -20%
2560x1440 Sling Shot Extreme (ES 3.1) (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
2469 Points ∼74%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3015 Points ∼91% +22%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1141 Points ∼34% -54%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1592 Points ∼48% -36%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3330 Points ∼100% +35%
Average Qualcomm Snapdragon 730
  (2192 - 2469, n=4)
2379 Points ∼71% -4%
Average of class Smartphone
  (68 - 7678, n=617)
1755 Points ∼53% -29%
2560x1440 Sling Shot OpenGL ES 3.0 Physics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3362 Points ∼96%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3498 Points ∼100% +4%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
2596 Points ∼74% -23%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2225 Points ∼64% -34%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
3476 Points ∼99% +3%
Average Qualcomm Snapdragon 730
  (2792 - 3362, n=4)
3151 Points ∼90% -6%
Average of class Smartphone
  (293 - 5274, n=657)
1991 Points ∼57% -41%
2560x1440 Sling Shot OpenGL ES 3.0 Graphics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3604 Points ∼70%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
4654 Points ∼90% +29%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1642 Points ∼32% -54%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2027 Points ∼39% -44%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
5171 Points ∼100% +43%
Average Qualcomm Snapdragon 730
  (2999 - 3604, n=4)
3316 Points ∼64% -8%
Average of class Smartphone
  (43 - 16670, n=656)
2456 Points ∼47% -32%
2560x1440 Sling Shot OpenGL ES 3.0 (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3547 Points ∼76%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
4401 Points ∼94% +24%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1788 Points ∼38% -50%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2068 Points ∼44% -42%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
4665 Points ∼100% +32%
Average Qualcomm Snapdragon 730
  (2950 - 3547, n=4)
3277 Points ∼70% -8%
Average of class Smartphone
  (55 - 11256, n=659)
2100 Points ∼45% -41%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
21603 Points ∼100%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
20156 Points ∼93% -7%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
20024 Points ∼93% -7%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
20393 Points ∼94% -6%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
21016 Points ∼97% -3%
Average Qualcomm Snapdragon 730
  (19389 - 21898, n=4)
20581 Points ∼95% -5%
Average of class Smartphone
  (735 - 59268, n=802)
15698 Points ∼73% -27%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
52736 Points ∼76%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
62756 Points ∼91% +19%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
25351 Points ∼37% -52%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
25086 Points ∼36% -52%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
69285 Points ∼100% +31%
Average Qualcomm Snapdragon 730
  (46605 - 52736, n=4)
50758 Points ∼73% -4%
Average of class Smartphone
  (536 - 221179, n=800)
27832 Points ∼40% -47%
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
39944 Points ∼87%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
42735 Points ∼93% +7%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
23936 Points ∼52% -40%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
23866 Points ∼52% -40%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
45872 Points ∼100% +15%
Average Qualcomm Snapdragon 730
  (35557 - 40105, n=4)
38270 Points ∼83% -4%
Average of class Smartphone
  (662 - 117606, n=800)
21512 Points ∼47% -46%
GFXBench (DX / GLBenchmark) 2.7
1920x1080 T-Rex HD Offscreen C24Z16 (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
67 fps ∼69%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
86 fps ∼89% +28%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
36 fps ∼37% -46%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
46 fps ∼47% -31%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
97 fps ∼100% +45%
Average Qualcomm Snapdragon 730
  (67 - 84, n=4)
78 fps ∼80% +16%
Average of class Smartphone
  (0.5 - 322, n=803)
46.8 fps ∼48% -30%
T-Rex HD Onscreen C24Z16 (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
55 fps ∼73%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
75 fps ∼100% +36%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
30 fps ∼40% -45%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
40 fps ∼53% -27%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
60 fps ∼80% +9%
Average Qualcomm Snapdragon 730
  (55 - 59, n=4)
57.8 fps ∼77% +5%
Average of class Smartphone
  (1 - 138, n=812)
31.7 fps ∼42% -42%
GFXBench 3.0
off screen Manhattan Offscreen OGL (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
34 fps ∼62%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
50 fps ∼91% +47%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
19 fps ∼35% -44%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
24 fps ∼44% -29%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
55 fps ∼100% +62%
Average Qualcomm Snapdragon 730
  (34 - 42, n=4)
38.8 fps ∼71% +14%
Average of class Smartphone
  (0.8 - 180, n=708)
27.8 fps ∼51% -18%
on screen Manhattan Onscreen OGL (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
31 fps ∼62%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
44 fps ∼88% +42%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
15 fps ∼30% -52%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
23 fps ∼46% -26%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
50 fps ∼100% +61%
Average Qualcomm Snapdragon 730
  (31 - 37, n=4)
34.5 fps ∼69% +11%
Average of class Smartphone
  (1.2 - 115, n=716)
23 fps ∼46% -26%
GFXBench 3.1
off screen Manhattan ES 3.1 Offscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
24 fps ∼63%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
33 fps ∼87% +38%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
13 fps ∼34% -46%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
15 fps ∼39% -37%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
38 fps ∼100% +58%
Average Qualcomm Snapdragon 730
  (24 - 30, n=4)
27.8 fps ∼73% +16%
Average of class Smartphone
  (0.87 - 117, n=571)
22.3 fps ∼59% -7%
on screen Manhattan ES 3.1 Onscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
22 fps ∼65%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
29 fps ∼85% +32%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
10 fps ∼29% -55%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
14 fps ∼41% -36%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
34 fps ∼100% +55%
Average Qualcomm Snapdragon 730
  (22 - 27, n=4)
24.8 fps ∼73% +13%
Average of class Smartphone
  (1.2 - 110, n=573)
20 fps ∼59% -9%
GFXBench
Aztec Ruins High Tier Onscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
8.3 fps ∼64%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
11 fps ∼85% +33%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
3.9 (2.7min) fps ∼30% -53%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
5.5 fps ∼42% -34%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
13 fps ∼100% +57%
Average Qualcomm Snapdragon 730
  (8.3 - 10, n=4)
9.4 fps ∼72% +13%
Average of class Smartphone
  (0.61 - 60, n=328)
11.7 fps ∼90% +41%
2560x1440 Aztec Ruins High Tier Offscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
5.4 fps ∼64%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
7.5 fps ∼88% +39%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
2.7 fps ∼32% -50%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
3.5 fps ∼41% -35%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
8.5 fps ∼100% +57%
Average Qualcomm Snapdragon 730
  (5.4 - 6.8, n=4)
6.25 fps ∼74% +16%
Average of class Smartphone
  (0.21 - 101, n=326)
8.25 fps ∼97% +53%
Aztec Ruins Normal Tier Onscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
13 fps ∼62%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
18 fps ∼86% +38%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
6.7 fps ∼32% -48%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
9.1 fps ∼43% -30%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
21 fps ∼100% +62%
Average Qualcomm Snapdragon 730
  (13 - 16, n=4)
15 fps ∼71% +15%
Average of class Smartphone
  (1.4 - 60, n=332)
17.4 fps ∼83% +34%
1920x1080 Aztec Ruins Normal Tier Offscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
15 fps ∼63%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
21 fps ∼88% +40%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
8.1 fps ∼34% -46%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
10 fps ∼42% -33%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
24 fps ∼100% +60%
Average Qualcomm Snapdragon 730
  (15 - 18, n=4)
16.8 fps ∼70% +12%
Average of class Smartphone
  (0.6 - 257, n=331)
20 fps ∼83% +33%
off screen Car Chase Offscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
14 fps ∼67%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
19 fps ∼90% +36%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
7.1 fps ∼34% -49%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
10 fps ∼48% -29%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
21 fps ∼100% +50%
Average Qualcomm Snapdragon 730
  (14 - 17, n=4)
16 fps ∼76% +14%
Average of class Smartphone
  (0.6 - 75, n=496)
14.9 fps ∼71% +6%
on screen Car Chase Onscreen (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
12 fps ∼63%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
16 fps ∼84% +33%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
5.7 fps ∼30% -52%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
8.6 fps ∼45% -28%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
19 fps ∼100% +58%
Average Qualcomm Snapdragon 730
  (12 - 15, n=4)
13.8 fps ∼73% +15%
Average of class Smartphone
  (1.1 - 60, n=500)
13.2 fps ∼69% +10%
AnTuTu v8 - Total Score (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
247877 Points ∼75%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
279244 Points ∼84% +13%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
170126 Points ∼51% -31%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
181295 Points ∼55% -27%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
332074 Points ∼100% +34%
Average Qualcomm Snapdragon 730
  (247507 - 247877, n=2)
247692 Points ∼75% 0%
Average of class Smartphone
  (53335 - 622888, n=126)
327904 Points ∼99% +32%
BaseMark OS II
Web (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
1366 Points ∼94%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
1456 Points ∼100% +7%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
947 Points ∼65% -31%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
10 Points ∼1% -99%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
1441 Points ∼99% +5%
Average Qualcomm Snapdragon 730
  (1099 - 1366, n=4)
1171 Points ∼80% -14%
Average of class Smartphone
  (7 - 1745, n=740)
829 Points ∼57% -39%
Graphics (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3875 Points ∼74%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
4697 Points ∼90% +21%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1911 Points ∼37% -51%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
2168 Points ∼42% -44%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
5203 Points ∼100% +34%
Average Qualcomm Snapdragon 730
  (3175 - 3875, n=4)
3616 Points ∼69% -7%
Average of class Smartphone
  (18 - 16996, n=740)
2561 Points ∼49% -34%
Memory (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
4482 Points ∼85%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
4775 Points ∼90% +7%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
1804 Points ∼34% -60%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
1605 Points ∼30% -64%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
5296 Points ∼100% +18%
Average Qualcomm Snapdragon 730
  (3435 - 4646, n=4)
4007 Points ∼76% -11%
Average of class Smartphone
  (21 - 8874, n=740)
1914 Points ∼36% -57%
System (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
6606 Points ∼97%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
6745 Points ∼99% +2%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
4911 Points ∼72% -26%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
4738 Points ∼70% -28%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
6801 Points ∼100% +3%
Average Qualcomm Snapdragon 730
  (6426 - 6760, n=4)
6569 Points ∼97% -1%
Average of class Smartphone
  (369 - 14189, n=740)
3513 Points ∼52% -47%
Overall (sort by value)
Samsung Galaxy M51
Qualcomm Snapdragon 730, Adreno 618, 6144
3539 Points ∼87%
Motorola Moto G 5G Plus
Qualcomm Snapdragon 765, Adreno 620, 4096
3845 Points ∼95% +9%
Sony Xperia 10 II
Qualcomm Snapdragon 665, Adreno 610, 4096
2001 Points ∼49% -43%
Samsung Galaxy A51
Samsung Exynos 9611, Mali-G72 MP3, 4096
634 Points ∼16% -82%
OnePlus Nord
Qualcomm Snapdragon 765G, Adreno 620, 12288
4054 Points ∼100% +15%
Average Qualcomm Snapdragon 730
  (2972 - 3539, n=4)
3242 Points ∼80% -8%
Average of class Smartphone
  (1 - 6273, n=740)
1799 Points ∼44% -49%

While you have to expect some shorter wait or load times for websites and images on the Internet, overall the browsing speed of the Samsung Galaxy M51 is at the class level.

Jetstream 2 - Total Score
OnePlus Nord (Chrome 84)
58.665 Points ∼100% +17%
Samsung Galaxy M51 (Chrome 85)
50.111 Points ∼85%
Motorola Moto G 5G Plus (Chrome 83)
48.568 Points ∼83% -3%
Average Qualcomm Snapdragon 730 (36.6 - 50.1, n=4)
43.5 Points ∼74% -13%
Average of class Smartphone (9.13 - 161, n=199)
41.7 Points ∼71% -17%
Samsung Galaxy A51 (Chrome 79)
27.681 Points ∼47% -45%
JetStream 1.1 - Total Score
OnePlus Nord (Chrome 84)
94.481 Points ∼100% +42%
Motorola Moto G 5G Plus (Chrome 83)
88.457 Points ∼94% +33%
Average Qualcomm Snapdragon 730 (65.3 - 87.5, n=4)
74.1 Points ∼78% +12%
Samsung Galaxy M51 (Chrome 85)
66.339 Points ∼70%
Samsung Galaxy A51 (Chrome 79)
51.257 Points ∼54% -23%
Sony Xperia 10 II (Chrome 84)
49.315 Points ∼52% -26%
Average of class Smartphone (10 - 343, n=630)
48.3 Points ∼51% -27%
Speedometer 2.0 - Result
OnePlus Nord (Chome 84)
53.6 runs/min ∼100% +30%
Motorola Moto G 5G Plus (Chrome 83)
45.2 runs/min ∼84% +9%
Average of class Smartphone (6.42 - 158, n=179)
43.1 runs/min ∼80% +4%
Samsung Galaxy M51 (Chome 85)
41.3 runs/min ∼77%
Average Qualcomm Snapdragon 730 (32.8 - 46.5, n=4)
39.9 runs/min ∼74% -3%
Samsung Galaxy A51 (Chrome 79)
29.1 runs/min ∼54% -30%
WebXPRT 3 - ---
OnePlus Nord (Chrome 84)
101 Points ∼100% +46%
Motorola Moto G 5G Plus (Chrome 83)
78 Points ∼77% +13%
Average Qualcomm Snapdragon 730 (60 - 86, n=4)
73 Points ∼72% +6%
Average of class Smartphone (19 - 184, n=266)
69.9 Points ∼69% +1%
Samsung Galaxy M51 (Chrome 85)
69 Points ∼68%
Samsung Galaxy A51 (Chrome 79)
57 Points ∼56% -17%
Sony Xperia 10 II (Chrome 84)
47 Points ∼47% -32%
Octane V2 - Total Score
OnePlus Nord (Chrome 84)
19143 Points ∼100% +17%
Samsung Galaxy M51 (Chrome 85)
16399 Points ∼86%
Motorola Moto G 5G Plus (Chrome 83)
16302 Points ∼85% -1%
Average Qualcomm Snapdragon 730 (12771 - 17501, n=4)
15757 Points ∼82% -4%
Samsung Galaxy A51 (Chrome 79)
10194 Points ∼53% -38%
Sony Xperia 10 II (Chrome 84)
9671 Points ∼51% -41%
Average of class Smartphone (894 - 49388, n=798)
7998 Points ∼42% -51%
Mozilla Kraken 1.1 - Total Score
Average of class Smartphone (1854 - 59466, n=824)
9681 ms * ∼100% -249%
Sony Xperia 10 II (Chrome 84)
4629.3 ms * ∼48% -67%
Samsung Galaxy A51 (Chrome 79)
4375.1 ms * ∼45% -58%
Average Qualcomm Snapdragon 730 (2564 - 3436, n=4)
2950 ms * ∼30% -6%
OnePlus Nord (Chrome 84)
2834.8 ms * ∼29% -2%
Samsung Galaxy M51 (Chrome 85)
2773.8 ms * ∼29%
Motorola Moto G 5G Plus (Chrome 83)
2764.2 ms * ∼29% -0%

* ... smaller is better

The internal storage is not quite as fast as in the OnePlus Nord or the Motorola Moto G 5G Plus, but it is still fast enough to keep load times or data transfers short. With an inserted microSD card, the smartphone also delivers good data transfer rates, as our test with the Toshiba Exceria Pro M501 reference microSD card shows.

Samsung Galaxy M51Motorola Moto G 5G PlusSony Xperia 10 IISamsung Galaxy A51OnePlus NordAverage 128 GB UFS 2.0 FlashAverage of class Smartphone
AndroBench 3-5
20%
-41%
-4%
59%
-6%
-33%
Sequential Write 256KB SDCard
59.4 (Toshiba Exceria Pro M501)
65.7 (Toshiba Exceria Pro M501)
11%
26.13 (Toshiba Exceria Pro M501)
-56%
60.1 (Toshiba Exceria Pro M501)
1%
54.4 (28.6 - 70.2, n=17)
-8%
51.3 (1.7 - 87.1, n=543)
-14%
Sequential Read 256KB SDCard
74.8 (Toshiba Exceria Pro M501)
87.1 (Toshiba Exceria Pro M501)
16%
29.15 (Toshiba Exceria Pro M501)
-61%
73 (Toshiba Exceria Pro M501)
-2%
70.3 (30.2 - 86, n=17)
-6%
69.3 (8.1 - 96.5, n=543)
-7%
Random Write 4KB
114.5
119.3
4%
56.74
-50%
104.4
-9%
104.5
-9%
84.8 (13.5 - 187, n=23)
-26%
37.3 (0.14 - 319, n=898)
-67%
Random Read 4KB
123.6
138.14
12%
76.83
-38%
110.8
-10%
126.7
3%
125 (88.4 - 173, n=23)
1%
60.5 (1.59 - 324, n=898)
-51%
Sequential Write 256KB
189.8
180.21
-5%
188.21
-1%
184.9
-3%
473.1
149%
196 (143 - 257, n=23)
3%
131 (2.99 - 911, n=898)
-31%
Sequential Read 256KB
491.7
885.34
80%
293.49
-40%
496.1
1%
955.5
94%
495 (409 - 733, n=23)
1%
348 (12.1 - 1802, n=898)
-29%

Games – Not too demanding, please

Basically you can also play slightly more demanding games with the Samsung Galaxy M51, but you have to reduce the details in PUBG Mobile to keep the frame rate safely above 30 fps. The fast Asphalt 9 racing game has some trouble to deliver a constant 30 fps even at minimal settings. If you want to play some graphically rather simple mobile games, the Galaxy M51 is a good choice, but real hardcore gamers who don't want to spend more money should take a look at the OnePlus Nord where they get a more stable 30 fps and in parts even more in games at this point. 

We test the frame rates with the software suite of our partner GameBench.

PUBG Mobile
PUBG Mobile
Asphalt 9
Asphalt 9
01020304050Tooltip
; PUBG Mobile; Smooth; 1.0.0: Ø39.4 (36-41)
; PUBG Mobile; HD; 1.0.0: Ø29.7 (28-31)
; Asphalt 9: Legends; High Quality; 2.4.7a: Ø29.4 (21-36)
; Asphalt 9: Legends; Standard / low; 2.4.7a: Ø29.9 (28-31)

Emissions – Heavy throttling

Temperature

GFXBench battery test
GFXBench battery test

The Samsung Galaxy M51 can get quite warm under longer load. We already measure up to 46.9 °C (116.4 °F) in normal room temperature, but on a hot summer day, this heat development can become critical. On the other hand, during idle operation there is no noticeable warming.

Using the GFXBench battery test, we evaluate whether there are some problems with the performance under longer loads. Indeed we see a drop of the frame rates by more than 20% after 15 runs of the benchmark. After that, the performance remains at a lower level.

Max. Load
 46.1 °C
115 F
39.7 °C
103 F
36.6 °C
98 F
 
 46.9 °C
116 F
39.5 °C
103 F
37.1 °C
99 F
 
 46.6 °C
116 F
39.4 °C
103 F
36.9 °C
98 F
 
Maximum: 46.9 °C = 116 F
Average: 41 °C = 106 F
34.6 °C
94 F
37.8 °C
100 F
41.1 °C
106 F
34.5 °C
94 F
38 °C
100 F
44.1 °C
111 F
35.1 °C
95 F
38.7 °C
102 F
44.3 °C
112 F
Maximum: 44.3 °C = 112 F
Average: 38.7 °C = 102 F
Power Supply (max.)  43.5 °C = 110 F | Room Temperature 21.4 °C = 71 F | Fluke t3000FC (calibrated), Voltcraft IR-260
(-) The average temperature for the upper side under maximal load is 41 °C / 106 F, compared to the average of 33 °C / 91 F for the devices in the class Smartphone.
(-) The maximum temperature on the upper side is 46.9 °C / 116 F, compared to the average of 35.3 °C / 96 F, ranging from 22.4 to 51.7 °C for the class Smartphone.
(±) The bottom heats up to a maximum of 44.3 °C / 112 F, compared to the average of 33.9 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 24.5 °C / 76 F, compared to the device average of 33 °C / 91 F.
Heat map - back
Heat map - back
Heat map - front
Heat map - front

Speaker

Pink Noise speaker test
Pink Noise speaker test

The small speaker on the bottom edge produces a decent bang and can become quite loud. However, the sound is tilted toward the highs and the speaker does not deliver a full-sounding spectrum. For those who only occasionally watch a video or listen to a piece of music, the speaker should be sufficient. However, all the others should appreciate the 3.5-mm audio port for headphones or the Bluetooth connection. Both methods provide clean sound to the speakers or headphones.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2040.445.22541.945.93138.5364042.242.65043.741.46337.437.18029.627.810026.628.312532.429.416027.539.320019.348.425019.355.731519.360.140019.463.950020.267.263022.969.680022.172.7100022.377.6125023.177.3160020.980.9200020.880.6250021.878.3315022.976.1400023.775.350002578.9630025.281.8800026.276.9100002869.61250027.861.41600028.359.1SPL75.735.989.9N36.42.481.3median 22.9median 69.6Delta3.110.947.242.43942.134.336.539.339.942.144.431.734.426.32626.427.125.631.622.143.919.353.218.958.716.562.71668.614.372.915.773.915.273.713.777.111.776.51274.512.470.311.171.911.269.711.86712.963.513.771.814.173.41475.81366.211.452.26863.425.984.922.415.80.864.6median 14median 69.72.69.4hearing rangehide median Pink NoiseSamsung Galaxy M51OnePlus Nord
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Samsung Galaxy M51 audio analysis

(+) | speakers can play relatively loud (89.9 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 26.1% lower than median
(±) | linearity of bass is average (11.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.1% higher than median
(+) | mids are linear (5.8% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 7.1% higher than median
(±) | linearity of highs is average (7.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (25.5% difference to median)
Compared to same class
» 63% of all tested devices in this class were better, 9% similar, 28% worse
» The best had a delta of 13%, average was 24%, worst was 65%
Compared to all devices tested
» 76% of all tested devices were better, 5% similar, 18% worse
» The best had a delta of 3%, average was 21%, worst was 65%

OnePlus Nord audio analysis

(+) | speakers can play relatively loud (84.9 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 23.4% lower than median
(±) | linearity of bass is average (11% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4% away from median
(+) | mids are linear (4.8% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.3% away from median
(+) | highs are linear (5.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (16.9% difference to median)
Compared to same class
» 3% of all tested devices in this class were better, 4% similar, 93% worse
» The best had a delta of 13%, average was 24%, worst was 65%
Compared to all devices tested
» 24% of all tested devices were better, 8% similar, 69% worse
» The best had a delta of 3%, average was 21%, worst was 65%

Battery Life – Almost nothing else lasts that long

Power Consumption

The power consumption is slightly above those of other smartphones with the Snapdragon 730. This might be due to the large screen of the Galaxy M51, but overall, the differences are not that large. The smartphone shows itself as relatively efficient in general, as long as the load is limited. However, under load the consumption is at a medium level.

Power Consumption
Off / Standbydarklight 0 / 0.1 Watt
Idledarkmidlight 0.8 / 1.3 / 1.8 Watt
Load midlight 4.8 / 7 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Samsung Galaxy M51
7000 mAh
Motorola Moto G 5G Plus
5000 mAh
Sony Xperia 10 II
3600 mAh
Samsung Galaxy A51
4000 mAh
OnePlus Nord
4115 mAh
Average Qualcomm Snapdragon 730
 
Average of class Smartphone
 
Power Consumption
-56%
-41%
-9%
-32%
12%
-6%
Idle Minimum *
0.8
1.5
-88%
1.5
-88%
0.9
-13%
1.8
-125%
0.643 (0.54 - 0.8, n=4)
20%
0.89 (0.2 - 3.4, n=900)
-11%
Idle Average *
1.3
2.1
-62%
2.1
-62%
1.7
-31%
2.1
-62%
1.235 (0.95 - 1.49, n=4)
5%
1.755 (0.6 - 6.2, n=899)
-35%
Idle Maximum *
1.8
2.9
-61%
2.8
-56%
1.8
-0%
2.3
-28%
1.448 (1.08 - 1.8, n=4)
20%
2.04 (0.74 - 6.6, n=900)
-13%
Load Average *
4.8
6.7
-40%
4.5
6%
5.2
-8%
3.4
29%
4.28 (2.7 - 5, n=4)
11%
4.11 (0.8 - 10.8, n=894)
14%
Load Maximum *
7
9.2
-31%
7.2
-3%
6.6
6%
5.2
26%
6.65 (5.4 - 7.11, n=4)
5%
6.1 (1.2 - 14.2, n=894)
13%

* ... smaller is better

Battery Life

It is justified to call the Samsung Galaxy M51 a "battery monster." Until now, you could only find a 7000-mAh battery in bulky outdoor smartphones or in tablets. So it is not surprising that the battery life outlasts those of similarly priced competitors by a long time. Our WLAN test doesn't seem to end, and only after more than 25 hours do the lights turn off in the Galaxy M51.

With this, you could surf for three whole workdays in the Internet and would still have some time left. During regular usage, 4-5 days without a recharge are definitely possible. Those who use all the power their smartphone can give will still be able to use it for 6 hours without a recharge, and watching movies without an Internet connection and even long flights should not cause any problem.

The 25-Watt quick charger needs barely two hours to completely recharge the high-capacity battery. 

Battery Runtime
Idle (without WLAN, min brightness)
44h 02min
NBC WiFi Websurfing Battery Test 1.3
25h 08min
Big Buck Bunny H.264 1080p
28h 05min
Load (maximum brightness)
6h 05min
Samsung Galaxy M51
7000 mAh
Motorola Moto G 5G Plus
5000 mAh
Sony Xperia 10 II
3600 mAh
Samsung Galaxy A51
4000 mAh
OnePlus Nord
4115 mAh
Battery Runtime
-44%
-51%
-40%
-33%
Reader / Idle
2642
1549
-41%
1689
-36%
2003
-24%
H.264
1685
581
-66%
846
-50%
1064
-37%
WiFi v1.3
1508
914
-39%
743
-51%
698
-54%
869
-42%
Load
365
252
-31%
289
-21%
261
-28%

Pros

+ very long battery life
+ bright display
+ good locating
+ decent camera pictures

Cons

- high heat development
- mediocre speaker
- throttles under longer loads

Verdict – One big strength, one weakness

In review: Samsung Galaxy M51.
In review: Samsung Galaxy M51.

"Battery life, battery life, battery life" was probably the motto when designing the Samsung Galaxy M51, and at more than 25 hours in our WLAN test, this goal definitely has been achieved. Still, the Galaxy smartphone is neither bulky nor unwieldy, and the battery technology has really made huge progress in the last few years here.

The design of our test unit is rather utilitarian but should not scare anyone away either. While the storage equipment is not exemplary, it is decent, just like the WLAN speed. In terms of the performance, the smartphone is also at the average level of the class. We like the locating accuracy, the display is bright, and the mono speaker is loud, but it doesn't produce particularly good sound. 

The high heat development under load is worrisome. Particularly during hot summer days, the phone becomes uncomfortably warm and needs to throttle its performance by more than 20%. Those who want 5G have to look elsewhere and the same goes for those whose wish list includes a smooth 90-Hz display.

The Galaxy M51 is an endurance champion with average equipment that hardly shows any weaknesses besides the strong heat development.

Overall, Samsung has delivered a mid-range smartphone here that should convince many customers with its outstanding battery life.

Samsung Galaxy M51 - 09/30/2020 v7
Florian Schmitt

Chassis
77%
Keyboard
66 / 75 → 88%
Pointing Device
97%
Connectivity
47 / 70 → 67%
Weight
88%
Battery
95%
Display
87%
Games Performance
27 / 64 → 42%
Application Performance
70 / 86 → 81%
Temperature
87%
Noise
100%
Audio
64 / 90 → 71%
Camera
63%
Average
74%
81%
Smartphone - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > Samsung Galaxy M51 Smartphone Review – Large in the mid-range
Florian Schmitt, 2020-10- 8 (Update: 2020-10- 9)
Florian Schmitt
Editor of the original article: Florian Schmitt - Managing Editor Mobile
When I was 12, the first computer came into the house and immediately I started tinkering around, taking it apart, getting new parts and replacing them - after all, there always had to be enough power for the current games. When I came to Notebookcheck in 2009, I was passionate about testing gaming notebooks. Since 2012, my attention has been focused on smartphones, tablets and future technologies.