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LG K40 Smartphone Review: A cheery and affordable handset

Florian Schmitt, 👁 Florian Schmitt (translated by Alex Alderson), 06/24/2019

Flashes of brilliance. The LG K40 is an affordable smartphone that includes a few tricks, such as DTS-X sound support. However, has the South Korean manufacturer focussed too much on flashy features and forgotten to get the basics right? Our rigorous tests will reveal all in this detailed review.

LG K40

LG refreshes its affordable K series annually. Last year, we reviewed the LG K9 and LG K11, which were both budget smartphones. This year, the South Korean manufacturer has positioned its K series against the Samsung A series, with the K40 being the focus of this review.

The smartphone retails for €169 (~$193), but it can be found for closer to €150 (~$171) online. We will compare our review unit against the Huawei Y6 (2019), Motorola Moto G7 Play and Xiaomi Redmi 7.

LG K40 (K Series)
Graphics adapter
Memory
2048 MB 
, 2GB or 3GB
Display
5.7 inch 18:9, 1440 x 720 pixel 282 PPI, capacitive touchscreen, IPS, glossy: yes
Storage
32 GB eMMC Flash, 32 GB 
, 21 GB free
Connections
1 USB 2.0, Audio Connections: 3.5 mm headphone jack, Card Reader: Up to 2 TB microSD cards. Dedicated card slot, 1 Fingerprint Reader, NFC, Brightness Sensor, Sensors: Accelerometer, proximity sensor
Networking
802.11 a/b/g/n/ac (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5), Bluetooth 5.0, 2G: 850, 900, 1,800, 1,900 MHz. 3G: B1, B2, B5, B8. 4G: B1, B3, B7, B8, B20, B38., Dual SIM, LTE, GPS
Size
height x width x depth (in mm): 8.3 x 153 x 71.9 ( = 0.33 x 6.02 x 2.83 in)
Battery
3000 mAh Lithium-Ion
Operating System
Android 8.1 Oreo
Camera
Primary Camera: 16 MPix , f/2.0, Phase Detection autofocus (PDAF, LED flash, videos at 1080p/30 FPS
Secondary Camera: 8 MPix , f/2.0, LED flash
Additional features
Speakers: Mono speaker on the underside of the device, Keyboard: virtual keyboard, Charger, USB cable, SIM tool, cleaning cloth, 24 Months Warranty, SAR values: Body – 1.597 W/kg, Head - 0.518 W/kg. MIL-STD-810-certified; Notification LED, fanless
Weight
145 g ( = 5.11 oz / 0.32 pounds), Power Supply: 49 g ( = 1.73 oz / 0.11 pounds)
Price
169 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

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Case

LG has designed the K40 with a metal case, as you may have noticed by the dull shine of our blue review unit. The company also sells the device in black and grey should blue not be your thing. LG has given the frame a glossy finish and a subtly accented colour. The display has comparatively thick top and bottom bezels though, which detracts from what is an otherwise contemporary looking design.

LG certifies the K40 as MIL-STD-810 compliant, which means that it must have successfully passed fourteen environmental and climatic tests. However, no independent organisation or agency certifies MIL-STD-810 compliance, so the conditions under which LG has tested it are unclear. The company’s decision to exclude damage from its limited warranty does not fill us with confidence.

Our review unit is also not that well made. It has large gaps between materials, while we can twist the case without much effort. Likewise, we can temporarily deform the display by applying pressure to the front or back of the device. Overall, its sturdiness is appropriate to its price, but the K40 does not go beyond that expectation.

The K40 is comparatively lightweight and compact though, weighing in at just 145 g (~5 oz). Its rounded corners help it sit nicely in the hand too.

LG K40
LG K40
LG K40
LG K40
LG K40
LG K40
LG K40

Size Comparison

158.7 mm / 6.25 inch 75.6 mm / 2.98 inch 8.5 mm / 0.3346 inch 180 g0.3968 lbs156.28 mm / 6.15 inch 73.5 mm / 2.89 inch 8 mm / 0.315 inch 150 g0.3307 lbs153 mm / 6.02 inch 71.9 mm / 2.83 inch 8.3 mm / 0.3268 inch 145 g0.3197 lbs147.3 mm / 5.8 inch 71.5 mm / 2.81 inch 7.99 mm / 0.3146 inch 149 g0.3285 lbs

Connectivity

2 GB of RAM and 32 GB of eMMC flash storage are now standard for smartphones at this price. The Redmi 7 even offers even more RAM, with LG also offering a 3 GB version of the K40.

Disappointingly, LG equips the K40 with a classic micro-USB port rather than the newer and reversible Type-C port. Worse still, the port in our review unit does not grip cables tightly, so it will probably need reattaching continuously if you are trying to charge it on a train, for example.

The K40 also supports Bluetooth 5.0 and NFC, which is not always the case for devices at this price, to LG’s credit. There is a notification LED too, but you could use the LED flash instead. More on that and other gimmicks in the Software section of this review.

The K40 is a dual-SIM device too, and supports up to 2 TB microSD cards. Thankfully, LG has included dedicated slots for all three, so there is no need to compromise between dual-SIM functionality and microSD card expansion.

The card reader supports the ExFAT file system, which is a bonus as that allows it to read files larger than 4 GB. However, it cannot save apps or data to the expandable storage, nor can it format microSD cards as internal storage.

Software

Inexplicably, the K40 ships with Android 8.1 Oreo. LG has been trying to change its image of being slow to roll out OS updates, but the K40 only reinforces that impression. Worse still, the company has no plans to update the device to Android 9.0 Pie or beyond. The only saving grace is that our review unit had recent Android security patches installed at the time of testing. Specifically, these were the May 2019 patches.

LG pre-installs hardly any bloatware apart from the usual suite of Google and in-house apps. It is a shame that we cannot uninstall or disable the Amazon Assistant app though. LG makes a few minor UI changes from stock Android such as a different launcher and icon pack, but you should need only a bit of acclimatising if you have used Android before.

The OS includes a few additional gimmicks, like the ability to set the LED flash to signify incoming notifications or flash to the beat of music playing in the LG music app. Likewise, the flash can act as a timer in the default camera app.

Default home screen
Default home screen
A look at some of the pre-installed apps and our test apps
A look at some of the pre-installed apps and our test apps
Game tools
Game tools

Communication & GPS

The K40 supports the bare minimum of LTE bands for LTE coverage in Europe, so you may struggle to connect to an LTE network outside of that area. Hence, we would recommend having another smartphone on-hand if you are planning on any intercontinental trips. Our review unit maintained decent network reception when connected to a German D2 network in a built-up area. It did so even in buildings, so you should have no issues with LTE coverage when using the device in Europe.

The K40 also supports up to IEEE 802.11 ac Wi-Fi, which is not always the case for smartphones at this price. Our review unit achieved class-leading download speeds too, although it regularly fluctuated between 107 and 246 MBit/s. You may not notice this on most domestic Wi-Fi connections, but it is still odd behaviour, nonetheless. Its upload speeds are nothing special though.

Networking
iperf3 Client (receive) TCP 1 m 4M x10
Average of class Smartphone
  (5.9 - 939, n=434)
226 MBit/s ∼100% +2%
LG K40
PowerVR GE8320, Helio P22 MT6762, 32 GB eMMC Flash
221 (min: 107, max: 246) MBit/s ∼98%
Huawei Y6 2019
PowerVR GE8300, Helio A22 MT6761, 32 GB eMMC Flash
69 (min: 61, max: 66) MBit/s ∼31% -69%
Xiaomi Redmi 7
Adreno 506, 632, 32 GB eMMC Flash
51.4 (min: 49, max: 54) MBit/s ∼23% -77%
Motorola Moto G7 Play
Adreno 506, 632, 32 GB eMMC Flash
34.8 (min: 27, max: 44) MBit/s ∼15% -84%
iperf3 Client (transmit) TCP 1 m 4M x10
Average of class Smartphone
  (9.4 - 703, n=434)
216 MBit/s ∼100% +445%
Xiaomi Redmi 7
Adreno 506, 632, 32 GB eMMC Flash
55.4 (min: 52, max: 61) MBit/s ∼26% +40%
LG K40
PowerVR GE8320, Helio P22 MT6762, 32 GB eMMC Flash
39.6 (min: 10, max: 54) MBit/s ∼18%
Huawei Y6 2019
PowerVR GE8300, Helio A22 MT6761, 32 GB eMMC Flash
37.8 (min: 29, max: 46) MBit/s ∼18% -5%
Motorola Moto G7 Play
Adreno 506, 632, 32 GB eMMC Flash
11.6 (min: 2, max: 36) MBit/s ∼5% -71%
0102030405060708090100110120130140150160170180190200210220230240250Tooltip
; iperf3 Client (receive) TCP 1 m 4M x10; iperf 3.1.3: Ø232 (207-246)
; iperf3 Client (transmit) TCP 1 m 4M x10; iperf 3.1.3: Ø39.6 (10-54)
GPS test: Indoors
GPS test: Indoors
GPS test: Outdoors
GPS test: Outdoors

Our review unit cannot locate us indoors, but it does so quickly and with up to 3 metres (~10 ft) accuracy outdoors.

However, we had a dramatically different experience during our bike ride, where we compared the K40’s location accuracy against our reference Garmin Edge 520. The former regularly cuts corners to keep up with us and plots impossible routes through buildings and other obstacles. Likewise, the route plotted by the K40 would suggest that we had mastered cycling on water. Overall, our review unit deviated by 330 metres (~361 ft) over a 3.80 km (~2.4 mi) bike ride, so we would recommend using another device if you need precise location data.

GPS test: Garmin Edge 520 - Overview
GPS test: Garmin Edge 520 - Overview
GPS test: Garmin Edge 520 - Loop
GPS test: Garmin Edge 520 - Loop
GPS test: Garmin Edge 520 - Bridge
GPS test: Garmin Edge 520 - Bridge
GPS test: LG K40 - Overview
GPS test: LG K40 - Overview
GPS test: LG K40 - Loop
GPS test: LG K40 - Loop
GPS test: LG K40 - Bridge
GPS test: LG K40 - Bridge

Telephone Features & Call Quality

LG pre-installs its in-house suite of telephony apps to handle calls and messages. The phone app functions and operates like the Google one, with the app opening to a keypad. It also hides contacts and call history within tabs at the top of the screen, right next to a search box.

The K40 has decent call quality. The earpiece in our review unit gets loud, but voices sound overly booming and slightly distorted at maximum volume. The microphone picks out our voice well though regardless of how quietly we speak. Our counterpart’s voice sounded a bit thinner than ours during our tests using the loudspeaker, but the microphone does a good job at capturing our voice here too.

Cameras

Photographed with the front-facing camera
Photographed with the front-facing camera

The K40 has surprisingly good cameras for a lower-midrange smartphone. LG has equipped the device with a 16 MP rear-facing sensor and an 8 MP front-facing one, the former of which has a comparatively high MP count at this price.

The rear-facing sensor takes pleasing photos in good light, although details look washed out and are dominated by image noise when we look closely. Expectedly, the sensor cannot expose scenes as well as the likes of the Apple iPhone XS Max and OnePlus 5T can. Low-light photos look better than we expected. Most objects in scene 3 are impressively well exposed, even if they are dominated by image noise.

LG has included a GIF mode too, which it calls Flash Jump-Cut. The mode takes a photo every three seconds and then stitches them into a GIF. It may sound gimmicky, but it worked well during our tests.

The 8 MP front-facing sensor is on par with cameras at this price. It takes decent photos that will please most selfie takers. Our test shots are detailed and have balanced colours, which is not always the case with front-facing cameras in sub-$200 smartphones. The K40 features a front-facing LED flash too, should you need to give your selfies better lighting.

The rear-facing sensor can also record videos in up to 1080p at 30 FPS. It adjusted its exposure quickly during our tests, although we noticed a slight grading effect in videos shot in changing conditions. The image quality is passable overall too.

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.

Scene 1Scene 2Scene 3
click to load images

We also subjected the rear-facing sensor to further tests under controlled lighting conditions. Our review unit overexposes most colours compared to the ColorChecker Passport reference colour, but it does a great job of reproducing dark grey and black tones.

The photo of our test chart looks good too, although contrast levels drop off slightly in the lower corners of the image. Looking closer reveals further issues, with black text looking slightly out of focus against coloured backgrounds, especially red. The camera preserves fine lines and structures though.

A photo of our test chart
A photo of our test chart
Our test chart in detail
Our test chart in detail
ColorChecker Passport: The lower half of each area of colour displays the reference colour
ColorChecker Passport: The lower half of each area of colour displays the reference colour

Accessories & Warranty

LG included only a few accessories with our review unit. We only found a charger, USB cable, SIM tool and a cleaning cloth in the box. The manufacturer does not appear to offer any K40 specific accessories either.

The K40 does come with 24 months limited manufacturer’s warranty though. Please see our Guarantees, Return Policies & Warranties FAQ for country-specific information.

Input Devices & Operation

LG pre-installs its in-house keyboard app as it does all its phones. Its UI is a bit overloaded for our tastes and has comparatively small keys. We still found it easy to type on though, but you can switch to another keyboard if you wish. You will find hundreds of options on the Google Play Store.

The touchscreen worked well too and is precise, even into the corners of the display. The protective glass layer covering the touchscreen has a slightly resistive finish on which is easy to perform multi-finger gestures or swiping movements. We encountered no latency issues or missed touches during our time with the K40.

LG has included a fingerprint scanner too, which it has placed on the back of the device. The one in our review unit recognises our registered fingers reliably, albeit with a slight delay before it unlocks the device.

The hardware buttons on the side of the device are well made and have clear pressure points. A Google Assistant has made its way down to the K40 from LG’s flagship smartphones, which is a nice touch. There are the obligatory volume and power buttons too.

Using the default keyboard in portrait mode
Using the default keyboard in portrait mode
Using the default keyboard in landscape mode
Using the default keyboard in landscape mode

Display

Sub-pixel array
Sub-pixel array

LG equips the K40 with a 5.7-inch IPS panel that runs natively at 1,440x720. The one in our review unit gets bright and achieves an average maximum luminosity of 467 cd/m² according to X-Rite i1Pro 2, putting it on par with our comparison devices. The same applies to the evenness of its backlight, which we recorded at 90%. Incidentally, the display can reach its peak brightness regardless of whether it has its ambient sensor activated.

475
cd/m²
476
cd/m²
439
cd/m²
485
cd/m²
475
cd/m²
440
cd/m²
489
cd/m²
480
cd/m²
443
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 489 cd/m² Average: 466.9 cd/m² Minimum: 2.5 cd/m²
Brightness Distribution: 90 %
Center on Battery: 475 cd/m²
Contrast: 1484:1 (Black: 0.32 cd/m²)
ΔE Color 5.95 | 0.6-29.43 Ø6
ΔE Greyscale 7.9 | 0.64-98 Ø6.2
95.2% sRGB (Calman 2D)
Gamma: 2.331
LG K40
IPS, 1440x720, 5.7
Xiaomi Redmi 7
IPS, 1520x720, 6.26
Motorola Moto G7 Play
IPS, 1512x720, 5.7
Huawei Y6 2019
IPS LCD, 1560x720, 6.09
Screen
4%
5%
11%
Brightness middle
475
444
-7%
479
1%
487
3%
Brightness
467
441
-6%
481
3%
485
4%
Brightness Distribution
90
90
0%
94
4%
89
-1%
Black Level *
0.32
0.45
-41%
0.37
-16%
0.35
-9%
Contrast
1484
987
-33%
1295
-13%
1391
-6%
Colorchecker DeltaE2000 *
5.95
3.94
34%
4.91
17%
4.3
28%
Colorchecker DeltaE2000 max. *
12.62
6.72
47%
9.47
25%
10.1
20%
Greyscale DeltaE2000 *
7.9
4.8
39%
6.4
19%
4.1
48%
Gamma
2.331 94%
2.294 96%
2.108 104%
2.09 105%
CCT
8202 79%
7445 87%
7292 89%
7312 89%

* ... 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 100 Hz ≤ 15 % brightness setting

The display backlight flickers at 100 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 15 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 100 Hz is very low, so the flickering may cause eyestrain and headaches after extended use.

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9370 (minimum: 43 - maximum: 142900) Hz was measured.

The display in our review unit also has a lower black level than its competitors, meaning that black tones will look slightly darker and richer than on devices such as the Moto G7 Play and Huawei Y6 (2019). The K40 has a comparison-table leading contrast ratio too, which we measured at 1,484:1.

Disappointingly, the display uses pulse-width modulation (PWM) at below 15% brightness. The panel in our review unit flickers at 100 Hz when set below this threshold, which will cause health issues like eyestrain and headaches for some people.

Moreover, our photo spectrometer and CalMAN analysis software show that the panel suffers from a distinct blue tint. This causes far higher DeltaE deviations than in our comparison devices and inhibits the colour accuracy of the display. LG includes a blue light filter though, which you can adjust manually from within Settings.

CalMAN: Greyscale
CalMAN: Greyscale
CalMAN: Colour Accuracy
CalMAN: Colour Accuracy
CalMAN: Colour space
CalMAN: Colour space
CalMAN: Colour Saturation
CalMAN: Colour 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
32 ms ... rise ↗ and fall ↘ combined↗ 19 ms rise
↘ 13 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 82 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (24.9 ms).
       Response Time 50% Grey to 80% Grey
38 ms ... rise ↗ and fall ↘ combined↗ 19 ms rise
↘ 19 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 37 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (39.7 ms).

The K40 remains readable in the outdoors, even on sunny days, although you may find yourself retreating into some shade or creating shadows on the screen to improve readability. The display has stable viewing angles though, thanks to being an IPS panel, so your view will not be inhibited by brightness or colour distortions.

Using the LG K40 outdoors on a sunny day
Using the LG K40 outdoors on a sunny day
Viewing Angles
Viewing Angles

Performance

LG equips the K40 with a MediaTek Helio P22 MT6762 SoC and up to 3 GB of RAM. The former integrates 8 ARM Cortex-A53 cores split across two clusters that can each reach up to 2 GHz. Overall, the device straddles the midfield of its class, with it generally finishing well behind the Snapdragon 632 equipped Moto G7 Play and Redmi 7. The comparison between the K40 and the Huawei Y6 (2019) is not as clear cut, with neither device coming out on top overall in the synthetic benchmarks that we ran.

While the K40 did not embarrass itself in benchmarks, our review unit cannot always maintain smooth system performance. Animations often look jerky, especially when closing apps in the Recents pane. We often encountered brief stutters when navigating through the UI too.

Geekbench 4.4
Compute RenderScript Score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
2638 Points ∼56%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
3850 Points ∼82% +46%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
3628 Points ∼77% +38%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
1607 Points ∼34% -39%
Average Mediatek Helio P22 MT6762
  (2638 - 3015, n=5)
2764 Points ∼59% +5%
Average of class Smartphone
  (663 - 21070, n=320)
4684 Points ∼100% +78%
64 Bit Multi-Core Score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
3375 Points ∼72%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
4301 Points ∼92% +27%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
4179 Points ∼89% +24%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
2354 Points ∼50% -30%
Average Mediatek Helio P22 MT6762
  (3300 - 3660, n=6)
3484 Points ∼74% +3%
Average of class Smartphone
  (883 - 11598, n=379)
4700 Points ∼100% +39%
64 Bit Single-Core Score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
758 Points ∼53%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
1227 Points ∼86% +62%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
1194 Points ∼84% +58%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
832 Points ∼59% +10%
Average Mediatek Helio P22 MT6762
  (749 - 824, n=6)
778 Points ∼55% +3%
Average of class Smartphone
  (390 - 4824, n=379)
1419 Points ∼100% +87%
PCMark for Android
Work 2.0 performance score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
3805 Points ∼64%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
5912 Points ∼100% +55%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
5930 Points ∼100% +56%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
5511 Points ∼93% +45%
Average Mediatek Helio P22 MT6762
  (3805 - 5135, n=8)
4570 Points ∼77% +20%
Average of class Smartphone
  (2630 - 11440, n=371)
5249 Points ∼89% +38%
Work performance score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
4404 Points ∼60%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
7117 Points ∼97% +62%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
7321 Points ∼100% +66%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
4229 Points ∼58% -4%
Average Mediatek Helio P22 MT6762
  (4404 - 6912, n=8)
5762 Points ∼79% +31%
Average of class Smartphone
  (1077 - 14439, n=542)
5678 Points ∼78% +29%
3DMark
2560x1440 Sling Shot Extreme (Vulkan) Unlimited Physics (sort by value)
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
15735 Points ∼100%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
1740 Points ∼11%
Average Mediatek Helio P22 MT6762
 
2149 Points ∼14%
Average of class Smartphone
  (1740 - 15735, n=57)
2697 Points ∼17%
2560x1440 Sling Shot Extreme (Vulkan) Unlimited Graphics (sort by value)
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
14536 Points ∼100%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
203 Points ∼1%
Average Mediatek Helio P22 MT6762
 
341 Points ∼2%
Average of class Smartphone
  (203 - 14536, n=57)
2792 Points ∼19%
2560x1440 Sling Shot Extreme (Vulkan) Unlimited (sort by value)
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
14786 Points ∼100%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
253 Points ∼2%
Average Mediatek Helio P22 MT6762
 
419 Points ∼3%
Average of class Smartphone
  (253 - 14786, n=57)
2534 Points ∼17%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited Physics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
912 Points ∼43%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
2133 Points ∼100% +134%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
876 Points ∼41% -4%
Average Mediatek Helio P22 MT6762
  (912 - 1025, n=7)
965 Points ∼45% +6%
Average of class Smartphone
  (573 - 4635, n=379)
1957 Points ∼92% +115%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited Graphics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
431 Points ∼24%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
469 Points ∼27% +9%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
197 Points ∼11% -54%
Average Mediatek Helio P22 MT6762
  (376 - 434, n=7)
416 Points ∼24% -3%
Average of class Smartphone
  (75 - 8374, n=379)
1761 Points ∼100% +309%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
488 Points ∼30%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
567 Points ∼35% +16%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
238 Points ∼15% -51%
Average Mediatek Helio P22 MT6762
  (435 - 493, n=7)
476 Points ∼29% -2%
Average of class Smartphone
  (93 - 6875, n=380)
1634 Points ∼100% +235%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited Physics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
912 Points ∼42%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
2147 Points ∼100% +135%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
889 Points ∼41% -3%
Average Mediatek Helio P22 MT6762
  (900 - 1015, n=8)
961 Points ∼45% +5%
Average of class Smartphone
  (375 - 4703, n=408)
1866 Points ∼87% +105%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited Graphics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
695 Points ∼30%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
813 Points ∼35% +17%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
450 Points ∼19% -35%
Average Mediatek Helio P22 MT6762
  (452 - 701, n=8)
655 Points ∼28% -6%
Average of class Smartphone
  (70 - 20154, n=408)
2340 Points ∼100% +237%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
734 Points ∼37%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
943 Points ∼48% +28%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
505 Points ∼26% -31%
Average Mediatek Helio P22 MT6762
  (513 - 747, n=8)
703 Points ∼36% -4%
Average of class Smartphone
  (88 - 10427, n=408)
1966 Points ∼100% +168%
2560x1440 Sling Shot Extreme (ES 3.1) Physics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
881 Points ∼42%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
2119 Points ∼100% +141%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
898 Points ∼42% +2%
Average Mediatek Helio P22 MT6762
  (860 - 1026, n=7)
949 Points ∼45% +8%
Average of class Smartphone
  (486 - 4492, n=459)
1864 Points ∼88% +112%
2560x1440 Sling Shot Extreme (ES 3.1) Graphics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
303 Points ∼21%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
424 Points ∼29% +40%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
Points ∼0% -100%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
250 Points ∼17% -17%
Average Mediatek Helio P22 MT6762
  (257 - 378, n=7)
319 Points ∼22% +5%
Average of class Smartphone
  (53 - 7150, n=459)
1452 Points ∼100% +379%
2560x1440 Sling Shot Extreme (ES 3.1) (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
355 Points ∼25%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
516 Points ∼37% +45%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
298 Points ∼21% -16%
Average Mediatek Helio P22 MT6762
  (305 - 439, n=7)
374 Points ∼27% +5%
Average of class Smartphone
  (68 - 6319, n=460)
1398 Points ∼100% +294%
2560x1440 Sling Shot OpenGL ES 3.0 Physics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
912 Points ∼43%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
2132 Points ∼100% +134%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
869 Points ∼41% -5%
Average Mediatek Helio P22 MT6762
  (854 - 1050, n=8)
959 Points ∼45% +5%
Average of class Smartphone
  (293 - 4454, n=500)
1727 Points ∼81% +89%
2560x1440 Sling Shot OpenGL ES 3.0 Graphics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
512 Points ∼27%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
807 Points ∼43% +58%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
357 Points ∼19% -30%
Average Mediatek Helio P22 MT6762
  (370 - 624, n=8)
507 Points ∼27% -1%
Average of class Smartphone
  (43 - 11302, n=499)
1891 Points ∼100% +269%
2560x1440 Sling Shot OpenGL ES 3.0 (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
567 Points ∼35%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
936 Points ∼57% +65%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
411 Points ∼25% -28%
Average Mediatek Helio P22 MT6762
  (428 - 684, n=8)
566 Points ∼35% 0%
Average of class Smartphone
  (55 - 8136, n=502)
1636 Points ∼100% +189%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
11443 Points ∼69%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
15735 Points ∼95% +38%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
16576 Points ∼100% +45%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
14037 Points ∼85% +23%
Average Mediatek Helio P22 MT6762
  (9674 - 14036, n=8)
11549 Points ∼70% +1%
Average of class Smartphone
  (735 - 45072, n=661)
14062 Points ∼85% +23%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
10531 Points ∼49%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
14536 Points ∼67% +38%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
14603 Points ∼67% +39%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
7567 Points ∼35% -28%
Average Mediatek Helio P22 MT6762
  (9536 - 10826, n=8)
10350 Points ∼48% -2%
Average of class Smartphone
  (536 - 209204, n=659)
21674 Points ∼100% +106%
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
10721 Points ∼61%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
14786 Points ∼84% +38%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
15000 Points ∼85% +40%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
8431 Points ∼48% -21%
Average Mediatek Helio P22 MT6762
  (9835 - 11287, n=8)
10562 Points ∼60% -1%
Average of class Smartphone
  (662 - 97276, n=659)
17596 Points ∼100% +64%
GFXBench (DX / GLBenchmark) 2.7
1920x1080 T-Rex HD Offscreen C24Z16 (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
19 fps ∼51%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
25 fps ∼67% +32%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
24 fps ∼64% +26%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
14 fps ∼37% -26%
Average Mediatek Helio P22 MT6762
  (17 - 20, n=7)
19 fps ∼51% 0%
Average of class Smartphone
  (0.5 - 322, n=682)
37.5 fps ∼100% +97%
T-Rex HD Onscreen C24Z16 (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
26 fps ∼70%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
37 fps ∼100% +42%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
37 fps ∼100% +42%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
20 fps ∼54% -23%
Average Mediatek Helio P22 MT6762
  (24 - 27, n=7)
26 fps ∼70% 0%
Average of class Smartphone
  (1 - 120, n=691)
27.8 fps ∼75% +7%
GFXBench 3.0
off screen Manhattan Offscreen OGL (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
9.7 fps ∼45%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
11 fps ∼51% +13%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
10 fps ∼46% +3%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
6.5 fps ∼30% -33%
Average Mediatek Helio P22 MT6762
  (9.1 - 10, n=7)
9.64 fps ∼45% -1%
Average of class Smartphone
  (0.8 - 175, n=588)
21.6 fps ∼100% +123%
on screen Manhattan Onscreen OGL (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
16 fps ∼80%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
19 fps ∼95% +19%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
20 fps ∼100% +25%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
11 fps ∼55% -31%
Average Mediatek Helio P22 MT6762
  (15 - 17, n=7)
16.6 fps ∼83% +4%
Average of class Smartphone
  (1.2 - 115, n=597)
19.2 fps ∼96% +20%
GFXBench 3.1
off screen Manhattan ES 3.1 Offscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
6 fps ∼34%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
7 fps ∼40% +17%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
6.9 fps ∼39% +15%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
4.2 fps ∼24% -30%
Average Mediatek Helio P22 MT6762
  (4.6 - 6.2, n=7)
5.81 fps ∼33% -3%
Average of class Smartphone
  (0.87 - 117, n=454)
17.7 fps ∼100% +195%
on screen Manhattan ES 3.1 Onscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
11 fps ∼66%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
14 fps ∼84% +27%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
15 fps ∼90% +36%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
7.6 fps ∼46% -31%
Average Mediatek Helio P22 MT6762
  (10 - 11, n=7)
10.6 fps ∼64% -4%
Average of class Smartphone
  (1.2 - 110, n=456)
16.6 fps ∼100% +51%
GFXBench
Aztec Ruins High Tier Onscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
4.3 fps ∼42%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
4.2 fps ∼41% -2%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
4.3 fps ∼42% 0%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
2.7 fps ∼26% -37%
Average Mediatek Helio P22 MT6762
  (4.1 - 4.3, n=7)
4.26 fps ∼42% -1%
Average of class Smartphone
  (0.61 - 60, n=172)
10.2 fps ∼100% +137%
2560x1440 Aztec Ruins High Tier Offscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
1.3 fps ∼18%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
1.3 fps ∼18% 0%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
1.3 fps ∼18% 0%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
0.8 fps ∼11% -38%
Average Mediatek Helio P22 MT6762
  (1.3 - 1.6, n=7)
1.386 fps ∼20% +7%
Average of class Smartphone
  (0.21 - 33, n=171)
7.05 fps ∼100% +442%
Aztec Ruins Normal Tier Onscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
6.8 fps ∼46%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
7 fps ∼47% +3%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
6.8 fps ∼46% 0%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
2.3 fps ∼15% -66%
Average Mediatek Helio P22 MT6762
  (6.7 - 6.8, n=7)
6.79 fps ∼46% 0%
Average of class Smartphone
  (1.4 - 60, n=176)
14.9 fps ∼100% +119%
1920x1080 Aztec Ruins Normal Tier Offscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
3.7 fps ∼22%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
3.9 fps ∼23% +5%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
3.8 fps ∼23% +3%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
4.2 fps ∼25% +14%
Average Mediatek Helio P22 MT6762
  (3.5 - 4.7, n=7)
3.79 fps ∼23% +2%
Average of class Smartphone
  (0.6 - 87, n=176)
16.6 fps ∼100% +349%
off screen Car Chase Offscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
2.8 fps ∼23%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
3.9 fps ∼32% +39%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
3.9 fps ∼32% +39%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
2 fps ∼17% -29%
Average Mediatek Helio P22 MT6762
  (2.1 - 2.9, n=7)
2.7 fps ∼22% -4%
Average of class Smartphone
  (0.6 - 73, n=379)
12.1 fps ∼100% +332%
on screen Car Chase Onscreen (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
4 fps ∼37%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
7.8 fps ∼72% +95%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
7.9 fps ∼73% +98%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
3.1 fps ∼29% -22%
Average Mediatek Helio P22 MT6762
  (3.8 - 5.1, n=7)
4.46 fps ∼41% +12%
Average of class Smartphone
  (1.1 - 60, n=383)
10.8 fps ∼100% +170%
AnTuTu v7 - Total Score (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
71347 Points ∼50%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
102781 Points ∼73% +44%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
97294 Points ∼69% +36%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
64157 Points ∼45% -10%
Average Mediatek Helio P22 MT6762
  (71347 - 77798, n=8)
74621 Points ∼53% +5%
Average of class Smartphone
  (17073 - 462516, n=290)
141701 Points ∼100% +99%
BaseMark OS II
Web (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
776 Points ∼72%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
1071 Points ∼100% +38%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
1045 Points ∼98% +35%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
785 Points ∼73% +1%
Average Mediatek Helio P22 MT6762
  (10 - 784, n=7)
542 Points ∼51% -30%
Average of class Smartphone
  (7 - 1745, n=626)
754 Points ∼70% -3%
Graphics (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
767 Points ∼38%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
1072 Points ∼53% +40%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
1069 Points ∼53% +39%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
470 Points ∼23% -39%
Average Mediatek Helio P22 MT6762
  (744 - 799, n=7)
769 Points ∼38% 0%
Average of class Smartphone
  (18 - 16996, n=626)
2035 Points ∼100% +165%
Memory (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
690 Points ∼39%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
1758 Points ∼100% +155%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
1068 Points ∼61% +55%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
1458 Points ∼83% +111%
Average Mediatek Helio P22 MT6762
  (661 - 1247, n=7)
949 Points ∼54% +38%
Average of class Smartphone
  (21 - 7500, n=626)
1503 Points ∼85% +118%
System (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
2195 Points ∼54%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
4090 Points ∼100% +86%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
3865 Points ∼94% +76%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
1755 Points ∼43% -20%
Average Mediatek Helio P22 MT6762
  (2165 - 2619, n=7)
2361 Points ∼58% +8%
Average of class Smartphone
  (369 - 14189, n=626)
2951 Points ∼72% +34%
Overall (sort by value)
LG K40
Mediatek Helio P22 MT6762, PowerVR GE8320, 2048
975 Points ∼58%
Xiaomi Redmi 7
Qualcomm Snapdragon 632, Adreno 506, 3072
1695 Points ∼100% +74%
Motorola Moto G7 Play
Qualcomm Snapdragon 632, Adreno 506, 2048
1465 Points ∼86% +50%
Huawei Y6 2019
Mediatek Helio A22 MT6761, PowerVR GE8300, 2048
986 Points ∼58% +1%
Average Mediatek Helio P22 MT6762
  (323 - 1166, n=7)
878 Points ∼52% -10%
Average of class Smartphone
  (1 - 6097, n=626)
1478 Points ∼87% +52%

The trend continues when web browsing, with websites, often taking a while to load or reload. Media content takes even longer to appear and makes the whole experience using Chrome 74 feel slow.

Unsurprisingly, the K40 performed comparatively poorly in browser benchmarks, finishing dead last in all our comparison tables.

WebXPRT 3 - ---
Average of class Smartphone (19 - 184, n=157)
66.9 Points ∼100% +131%
Xiaomi Redmi 7 (Chrome 73)
58 Points ∼87% +100%
Huawei Y6 2019
35 Points ∼52% +21%
LG K40 (Chrome 74)
29 Points ∼43%
Average Mediatek Helio P22 MT6762 (26 - 30, n=6)
28.8 Points ∼43% -1%
Octane V2 - Total Score
Xiaomi Redmi 7 (Chrome 73)
8258 Points ∼100% +97%
Motorola Moto G7 Play
8185 Points ∼99% +95%
Average of class Smartphone (894 - 49388, n=684)
6701 Points ∼81% +60%
Huawei Y6 2019 (Chrome)
4437 Points ∼54% +6%
LG K40 (Chrome 74)
4197 Points ∼51%
Average Mediatek Helio P22 MT6762 (3312 - 4508, n=8)
4168 Points ∼50% -1%
Mozilla Kraken 1.1 - Total Score
LG K40 (Chrome 74)
11955 ms * ∼100%
Average Mediatek Helio P22 MT6762 (10846 - 12799, n=8)
11813 ms * ∼99% +1%
Average of class Smartphone (571 - 59466, n=709)
10602 ms * ∼89% +11%
Huawei Y6 2019
10198 ms * ∼85% +15%
Xiaomi Redmi 7 (Chrome 73)
4856.4 ms * ∼41% +59%
Motorola Moto G7 Play
4806 ms * ∼40% +60%

* ... smaller is better

The results do not get much better when we looked at the speed of our review unit’s internal storage and microSD card reader either. The former is well beaten by all our comparison devices in all but the sequential write benchmark in AndroBench 3-5, although it finished slightly ahead of the class average overall.

The speed of its microSD card reader is slightly above our expectations. It falls around 10% short of the readers in our comparison devices though.

LG K40Xiaomi Redmi 7Motorola Moto G7 PlayHuawei Y6 2019Average 32 GB eMMC FlashAverage of class Smartphone
AndroBench 3-5
17%
119%
19%
3%
12%
Sequential Write 256KB SDCard
57.4 (Toshiba Exceria Pro M501)
63.3 (Toshiba Exceria Pro M501)
10%
64.1 (Toshiba Exceria Pro M501)
12%
64.45 (Toshiba Exceria Pro M501)
12%
50.2 (3.4 - 87.1, n=140)
-13%
49.1 (1.7 - 87.1, n=417)
-14%
Sequential Read 256KB SDCard
77.59 (Toshiba Exceria Pro M501)
85.9 (Toshiba Exceria Pro M501)
11%
84.7 (Toshiba Exceria Pro M501)
9%
83.16 (Toshiba Exceria Pro M501)
7%
68.9 (8.2 - 96.5, n=140)
-11%
67.3 (8.1 - 96.5, n=417)
-13%
Random Write 4KB
10
14.4
44%
73
630%
15
50%
18.3 (0.75 - 77.3, n=181)
83%
21.5 (0.14 - 250, n=734)
115%
Random Read 4KB
52.6
73.6
40%
74
41%
69
31%
38.9 (3.59 - 117, n=181)
-26%
46.5 (1.59 - 196, n=734)
-12%
Sequential Write 256KB
100.5
84.7
-16%
111
10%
107.78
7%
94.6 (14.8 - 189, n=181)
-6%
95.4 (2.99 - 590, n=734)
-5%
Sequential Read 256KB
261.7
298
14%
289
10%
279.26
7%
236 (25.8 - 452, n=181)
-10%
269 (12.1 - 1504, n=734)
3%

Games

The PowerVR GE8320 is no mobile gaming master. It is powerful enough to run casual games such as "Angry Birds 2" and "Temple Run 2", but complex titles such as "Asphalt 9: Legends" are practically unplayable.

The touchscreen and associated sensors worked perfectly during our gaming tests though. "Temple Run 2" ran smoothly, and we encountered no issues with moving the playable character accurately during intricate sections of the game.

Angry Birds 2
Angry Birds 2
Temple Run 2
Temple Run 2

Emissions

Temperature

The K40 runs hot under load, but never dangerously so. Surface temperatures ranged between 33.4 °C (~92 °F) and 39.9 °C (~104 °F) under sustained load, so you will notice the device getting warm in your hands when gaming. Surface temperatures remain at closer to 30 °C (~86 °F) when the system is idling, but the device will never feel cool to the touch if you are using it.

Max. Load
 37.7 °C
100 F
37.4 °C
99 F
36.3 °C
97 F
 
 38.7 °C
102 F
37.8 °C
100 F
37.2 °C
99 F
 
 39.9 °C
104 F
38.8 °C
102 F
37.1 °C
99 F
 
Maximum: 39.9 °C = 104 F
Average: 37.9 °C = 100 F
33.4 °C
92 F
35.4 °C
96 F
35.8 °C
96 F
34.4 °C
94 F
36.1 °C
97 F
35.4 °C
96 F
34.1 °C
93 F
37.7 °C
100 F
38.7 °C
102 F
Maximum: 38.7 °C = 102 F
Average: 35.7 °C = 96 F
Power Supply (max.)  39.6 °C = 103 F | Room Temperature 21.5 °C = 71 F | Voltcraft IR-260
(±) The average temperature for the upper side under maximal load is 37.9 °C / 100 F, compared to the average of 33.1 °C / 92 F for the devices in the class Smartphone.
(+) The maximum temperature on the upper side is 39.9 °C / 104 F, compared to the average of 35.5 °C / 96 F, ranging from 22.4 to 51.7 °C for the class Smartphone.
(+) The bottom heats up to a maximum of 38.7 °C / 102 F, compared to the average of 34.1 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 31.1 °C / 88 F, compared to the device average of 33.1 °C / 92 F.
Heatmap of the back of the device under load
Heatmap of the back of the device under load
Heatmap of the front of the device under load
Heatmap of the front of the device under load

Speakers

Pink Noise speaker test
Pink Noise speaker test

The K40 has a mono speaker on the underside of its frame, which got reasonably loud during our tests. The speaker does not distort even at maximum volume, although high-pitched tones dominate the audio that it reproduces. The speaker is not terrible, but music sounds awfully tinny. LG pre-installs an equaliser that allows you to tweak the sound of the speakers, which should help mitigate its tininess somewhat.

The K40 supports the DTS-X 3D audio too, but only for wired external audio equipment such as headphones. Surprisingly, the mode makes music sound more spacious and can even simulate changing the direction of the sound source. Incidentally, we encountered no issues with using external speakers or headphones during our tests. The 3.5 mm jack and Bluetooth always delivered clear and distortion-free audio.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2042.643.22540.146.13131.232.74036.435.75040.339.16332.231.6802526.510027.724.612523.222.616021.822.420020.721.52501920.831519.524.840018.633.750019.642.663020.151.780020.262.1100021.368.7125016.270.3160018.669.6200017.667.9250016.467.6315016.865.1400016.272.3500016.875.5630016.972800016.670.41000018661250017.960.6160001744.5SPL65.864.130.843.269.830.381.8N1716.11.43.421.11.445.3median 18.6median 62.1Delta218.342.247.642.141.534.636.537.337.439.841.132.734.527.727.927.826.625.725.323.332.32339.921.44821.454.120.159.520.567.121.873.420.474.62074.318.273.218.971.9187319.172.518.268.91865.71958.51865.418.163.818.165.218.267.218.150.465.66267.731.382.818.514.623.11.652.7median 19.1median 65.41.811.9hearing rangehide median Pink NoiseLG K40Xiaomi Redmi 7
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
LG K40 audio analysis

(±) | speaker loudness is average but good (81.8 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 39.3% lower than median
(+) | bass is linear (3.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 10.8% lower than median
(±) | linearity of mids is average (13.7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 7.7% higher than median
(±) | linearity of highs is average (7.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (39.5% difference to median)
Compared to same class
» 98% of all tested devices in this class were better, 1% similar, 1% worse
» The best had a delta of 13%, average was 25%, worst was 44%
Compared to all devices tested
» 98% of all tested devices were better, 0% similar, 1% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Xiaomi Redmi 7 audio analysis

(+) | speakers can play relatively loud (82.8 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 27.7% lower than median
(±) | linearity of bass is average (11.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 7% higher than median
(+) | mids are linear (6.6% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.8% away from median
(±) | linearity of highs is average (7.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (24.3% difference to median)
Compared to same class
» 49% of all tested devices in this class were better, 11% similar, 40% worse
» The best had a delta of 13%, average was 25%, worst was 44%
Compared to all devices tested
» 69% of all tested devices were better, 7% similar, 24% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Power Management

Power Consumption

Amazingly, the K40 consumes no power when switched off, which is not always the case with modern smartphones. Our review unit consumes a minimum of 0.68 W when idling too, which makes it more efficient than all but the Huawei Y6 (2019) of our comparison devices. Overall, the K40 has a lower power draw than the Moto G7 Play and Redmi 7 too.

Power Consumption
Off / Standbydarklight 0 / 0.1 Watt
Idledarkmidlight 0.68 / 1.53 / 1.95 Watt
Load midlight 3.5 / 4.9 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
LG K40
3000 mAh
Xiaomi Redmi 7
4000 mAh
Motorola Moto G7 Play
3000 mAh
Huawei Y6 2019
3020 mAh
Average Mediatek Helio P22 MT6762
 
Average of class Smartphone
 
Power Consumption
-15%
-28%
6%
1%
-16%
Idle Minimum *
0.68
1
-47%
1
-47%
0.59
13%
0.729 (0.57 - 1, n=8)
-7%
0.877 (0.2 - 3.4, n=769)
-29%
Idle Average *
1.53
1.7
-11%
1.7
-11%
1.94
-27%
1.576 (1 - 2.4, n=8)
-3%
1.734 (0.6 - 6.2, n=768)
-13%
Idle Maximum *
1.95
2.1
-8%
2.6
-33%
1.96
-1%
2.02 (1.51 - 2.9, n=8)
-4%
2.02 (0.74 - 6.6, n=769)
-4%
Load Average *
3.5
3.3
6%
4.1
-17%
2.82
19%
3.06 (2.18 - 4, n=8)
13%
4.07 (0.8 - 10.8, n=763)
-16%
Load Maximum *
4.9
5.6
-14%
6.5
-33%
3.57
27%
4.63 (3.43 - 5.9, n=8)
6%
5.9 (1.2 - 14.2, n=763)
-20%

* ... smaller is better

Battery Life

LG equips the K40 with a 3,000 mAh battery, which is smaller than all but the Moto G7 Play of our comparison devices. Despite this, our review unit lasted an impressively long 12:25 hours in our Wi-Fi battery life test before it needed recharging.

In short, the K40 should last a full day between charges if you are not always pushing it hard. In our experience, its battery should last about two days if used sparingly. The device must stay tethered to its charger for a good 2 hours before it is fully recharged again though.

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3
12h 25min
LG K40
3000 mAh
Xiaomi Redmi 7
4000 mAh
Motorola Moto G7 Play
3000 mAh
Huawei Y6 2019
3020 mAh
Battery Runtime
14%
-7%
-2%
Reader / Idle
1489
WiFi v1.3
745
848
14%
690
-7%
732.1
-2%
Load
268
249
H.264
902
805

Pros

+ good battery life
+ comprehensive software
+ decent IO
+ comparatively light and compact
+ solid call quality

Cons

- inaccurate GPS
- shaky Wi-Fi signal
- large gaps between materials
- poor performance
- strong blue tint to the display
- PWM under 15% brightness
- running an outdated version of Android

Verdict

The LG K40 smartphone review. Test device courtesy of Cyberport.
The LG K40 smartphone review. Test device courtesy of Cyberport.

The LG K40 is a solid, lower-midrange smartphone that competes with other comparably priced devices. Its sizable bezels detract from what would have been an otherwise contemporary design.

In essence, the K40 is a no-frills handset that offers good battery life, decent cameras and plentiful connectivity. Our review unit does not run that hot either, and its display gets bright enough to comfortably read it outside on a sunny day. The K40 has comparatively fast, albeit sometimes erratic, Wi-Fi speeds too.

Speaking of connectivity, the inclusion of NFC at this price impressed us, as did the dedicated microSD card slot and Bluetooth 5.0 support. The K40 is surprisingly lightweight and compact too.

The LG K40 is an attractive lower-midrange smartphone, but its underwhelming performance lets it down.

The K40 has shortcomings aplenty though. Its lack of performance will irritate many people, as will the strong blue tint with which the display suffers from. The inaccurate GPS module and outdated version of Android that LG pre-installs further compounded our frustrations during our tests. The GIF camera mode, flash integration with the default music app and the gaming settings are novel, but they do not mitigate the glaring issues that plague the K40.

Overall, the LG K40 would suit someone who needs an affordable smartphone with good battery life, decent call quality and solid connectivity. The MediaTek Helio P22 SoC cannot hold a candle to its Snapdragon competitors though.

LG K40 - 06/22/2019 v6(old)
Florian Schmitt

Chassis
70%
Keyboard
66 / 75 → 88%
Pointing Device
92%
Connectivity
39 / 60 → 66%
Weight
93%
Battery
95%
Display
84%
Games Performance
23 / 63 → 36%
Application Performance
43 / 70 → 62%
Temperature
89%
Noise
100%
Audio
55 / 91 → 60%
Camera
67%
Average
70%
82%
Smartphone - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > LG K40 Smartphone Review: A cheery and affordable handset
Florian Schmitt, 2019-06-24 (Update: 2019-06-26)
Alex Alderson
Alex Alderson - News Editor - @aldersonaj
Prior to writing and translating for Notebookcheck, I worked for various companies including Apple and Neowin. I have a BA in International History and Politics from the University of Leeds, which I have since converted to a Law Degree. Happy to chat on Twitter or Notebookchat.