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UHANS S1 Smartphone Review

Marcus Herbrich, Tanja Hinum (translated by Liala Stieglitz), 08/01/2016

The beautiful beast. The Chinese smartphone label UHANS advertises its S1 smartphone model with this teaser. And this teaser is dead-on: Besides attractive looks, the entry-level handset proves to be powerful and exceptionally well equipped for this price range.

For the original German review, see here.

With the first generation of the S series, the manufacturer UHANS, still relatively unknown in Germany, expands its product portfolio by another model: S1. The "S" in the name of the model series stands for the attributes: Slim and sleek. Thus, it is not surprising that the 5-inch LTE smartphone is very thin at a height of just 7.3 millimeters.

An octa-core SoC by MediaTek is installed in the entry-level handset. The memory is very generous for a device from this price range with 3 GB of RAM and 32 GB of ROM. A micro-SD slot is also present. The hybrid slot in UHANS' S1 can alternatively be fitted with two micro-SIM cards. The camera modules have a native resolution of 5 and 13.3 MP, and the IPS panel has a resolution of 1280 x 720 pixels.

Since UHANS does not sell its devices directly on the German market, the S1 is only sold via import companies. The entry-level handset is available in black-gray and white-gold. Present rivals of the approximately 130 Euro dual-SIM smartphone are found among Android devices consisting of UMi's Touch, Coolpad's Porto S, Oukitel's K4000 Pro, Archos' 50 Power und LG's K4, but also Microsoft's latest entry-level handset Lumia 550.

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UHANS S1
Graphics adapter
Memory
3072 MB 
Display
5 inch 16:9, 1280 x 720 pixel 294 PPI, capacitive, multitouch, LCD, IPS, On Cell, glossy: yes
Storage
32 GB eMMC Flash, 32 GB 
, 24.82 GB free
Connections
1 USB 2.0, Audio Connections: 3.5 mm jack, Card Reader: micro-SD (max. 64 GB), 1 Fingerprint Reader, Brightness Sensor, Sensors: accelerometer, proximity sensor, OTG, Miracast, status LED
Networking
802.11 b/g/n (b/g/n = Wi-Fi 4), Bluetooth 4.0, 4G:FDD-LTE Band 1/3/7/8/20 3G: WCDMA 900/2100/1900 MHz (HSDPA 42Mbps,HSUPA11Mbps) 2G: GSM 850/900/1800/1900MHz, Dual SIM, LTE, GPS
Size
height x width x depth (in mm): 7.3 x 140 x 69.1 ( = 0.29 x 5.51 x 2.72 in)
Battery
2200 mAh Lithium-Polymer, BAK battery
Operating System
Android 6.0 Marshmallow
Camera
Primary Camera: 13 MPix Sony IMX 214, f/2.0
Secondary Camera: 5 MPix
Additional features
Speakers: mono speaker, Keyboard: onscreen, modular power supply, USB cable, Freeme OS 6.1, 24 Months Warranty, SAR rate unkn., fanless
Weight
153 g ( = 5.4 oz / 0.34 pounds), Power Supply: 57 g ( = 2.01 oz / 0.13 pounds)
Price
130 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Case

Both the front and rear of UHANS' S1 is made of scratch-resistant glass that is integrated into a lightly curved 2.5D bezel. This gives the entry-level handset a nice feel and quality that is normally only found in considerably higher priced smartphones. The smartphone is relatively slippery due to its glass back. Furthermore, fingerprints soon cover the device - although that was kept within limits on our tested white model. The lightly beveled metal bezel on the edges contributes to the stability of UHANS' S1. It also gives the entry-level handset a block-like feel like that of Apple's iPhone SE.

The frame around the IPS panel is comparatively narrow. The dimensions of 140 x 69.1 millimeters alongside a screen diagonal of 5 inches equal a screen-surface ratio of good 71.2 percent. Thus, it is on par with UMi's Touch (71 %). The 13-megapixel primary camera situated in the upper back does not jut out of the slim 7.3-millimeter casing.

The build quality and choice of materials for UHANS' S1 is the highest standard for the price range. The buttons for volume control and power on the casing's right also have a well-defined pressure point. The casing's stiffness makes a just as decent impression - nothing creaks or cracks when holding the handset.

154.5 mm / 6.08 inch 76 mm / 2.99 inch 8.8 mm / 0.3465 inch 199 g0.4387 lbs145.6 mm / 5.73 inch 72 mm / 2.83 inch 12.5 mm / 0.4921 inch 250 g0.551 lbs145 mm / 5.71 inch 72 mm / 2.83 inch 9 mm / 0.3543 inch 148 g0.3263 lbs143 mm / 5.63 inch 72 mm / 2.83 inch 7.6 mm / 0.2992 inch 125 g0.2756 lbs140 mm / 5.51 inch 69.1 mm / 2.72 inch 7.3 mm / 0.2874 inch 153 g0.3373 lbs136.1 mm / 5.36 inch 67.8 mm / 2.67 inch 9.9 mm / 0.3898 inch 142 g0.3131 lbs131.9 mm / 5.19 inch 66.6 mm / 2.62 inch 8.9 mm / 0.3504 inch 120 g0.2646 lbs

Connectivity

The internal eMMC storage of 32 GB, which can be expanded by up to 64 GB via a micro-SD card, is very generous for an entry-level handset. By comparison, LG's K4 with 8 GB only has a quarter of the ROM capacity of UHANS's S1. The user has roughly 24.82 GB for personal use after deducting the operating system. The manufacturer supports moving compatible apps to the SD card (App2SD).

The smartphone is recharged via the micro-USB 2.0 port on the handset's lower edge. It also supports USB OTG (on-the-go) for connecting external storage devices or peripherals. The smartphone also features an FM radio, notification LED, and fingerprint scanner. Furthermore, wireless transmission of display content to external monitors functioned well in the test with a Sony Android TV.

Software

The preloaded Freeme OS 6.1 operating system in UHANS' S1 is based on the latest version of Google's Android 6.0 Marshmallow platform. Although the custom ROM keeps fundamental Android structures, some visual and functional modifications have been made to the Freeme OS user interface. For example, installed applications are distributed over the home screen like known from Apple products. The user can individually adapt the design via the company's Theme Store, and easily swap it from the home screen via applications.

Despite selecting German for system language, English was used in some places.

Communication & GPS

GPS test, indoors
GPS test, outdoors
Short interruptions in transmission rates, Iperf server
Short interruptions in transmission rates, Iperf client

The WiFi module installed in UHANS' S1 only supports the IEEE 802.11 b/g/n standards as known from entry-level handsets. The reception performance was good in routine use, and the WiFi signal was stable. The attenuation of just below -50 dBm was comparatively high directly beside the router (Telekom Speedport, W921V). However, the signal was strong enough in a neighboring room (-64 dBm). UHANS' smartphone sports Bluetooth version 4.0 for wireless communication between mobile end devices. The average transmission rates to the router (Linksys EA8500) at a meter distance of 50.9 Mbit/s (transmit) and 30.5 Mbit/s (receive) are on a standard level for entry-level devices. By comparison: Current premium range smartphones, such as Huawei's P9, achieve rates of 205 Mbit/s and 249 Mbit/s.

The dual-SIM smartphone can access mobile Internet with up to two micro-SIM cards. The "main" slot supports quad-band GSM, tri-band UMTS and LTE Cat.4 in the 800, 900, 1800, 2100, and 2600 MHz frequencies. This also includes the LTE band 20 that is important in German rural areas and which is often absent in imported devices. The hybrid slot is limited to UMTS connections.

The GPS module in UHANS' S1 quickly and reliably finds the actual position with an accuracy of 4.5 meters outdoors. However, localization was not successful indoors in the test. In our practical test, where a route is recorded using both the GPS module in the entry-level smartphone and Garmin's Edge 500 bike computer, UHANS' S1 displays some deviations in the route - the accuracy of the smartphone's GPS is average in total.


GPS UHANS S1
GPS UHANS S1
GPS UHANS S1
GPS Garmin Edge 500
GPS Garmin Edge 500
GPS Garmin Edge 500

Telephone & Call Quality

UHANS relies on Google's stock phone app for its S1 model. It offers common features, such as favorites, call list, integrated phone book, and search.

Sound and voice quality of the earpiece are very satisfactory. The contact is also understood well thanks to its maximum volume. We performed test calls using both Skype and the German O2 mobile network (E network).

Phone app
Keypad

Cameras

Macro photo, primary camera
Photo, front-facing camera

The rear-facing primary camera features a Sony Exmor RS sensor with a resolution of 13.3 MP in a 4:3 format (4096 x 3072 pixels). The Japanese manufacturer uses its IMX214 CMOS image sensor in its Xperia Z2 model. The maximum pixel count is interpolated to 15.9 via software in UHANS' S1.

The camera module achieves high-detail photos with good image sharpness that, however, decreases toward the edges in bright light conditions. The colors in the photos also look natural and do not exhibit any significant color tints. The aperture of f/2.2, i.e. the ratio of focal length to diameter, allows the lens to capture plenty of light, but the photos tend to look dark (scene 2: woods). Phase detection autofocus enables changing the object quickly and accurately. UHANS' S1 does a relatively poor job in low-light scenarios (scene 3: street) - hardly any details are visible here.

The front-facing camera's image sensor has a native resolution of 5 MP, which is interpolated to 8 megapixels also via software. The quality is quite sufficient for selfies. Videos can be recorded with up to 1080p at 30 FPS. The recording quality drops to 480p at 30 FPS when using the 5 MP camera.

Camera app
Camera app

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
Test chart
Test chart
Screenshot of ColorChecker colors. Original colors are displayed in the lower half of each patch.
Test chart, center section

Accessories & Warranty

The box contains a quick start guide, a modular power supply, and a USB charging cable besides the review sample. Beyond that, UHANS includes a transparent protective cover and a screen protector for the S1. A headset is not included.

UHANS includes a global warranty period of 24 months on its smartphone.

Input Devices & Handling

The multi-touchscreen responds very accurately to inputs, and the glass surface offers pleasant gliding traits. The active fingerprint scanner on the smartphone's back is well positioned and unlocking the device via biometric identification with a fingerprint functions reliably. However, the sensor is not the fastest one on the market.

UHANS' S1 is furnished with Google's stock keyboard in Android Marshmallow design for onscreen inputting.

Onscreen keyboard, landscape mode
Onscreen keyboard, portrait mode
Onscreen keyboard, portrait mode

Display

Subpixel grid

The IPS LC display in UHANS' S1 has a diagonal of 12.7 centimeters (5 inches). In conjunction with a resolution of 1280 x 720 pixels, this results in a pixel density of 294 PPI. Thus, the pixel density of UHANS' S1 is below the magic Apple Retina limit of 300 PPI, but even small fonts in text contents still look sharp and pixel structures are hardly visible from a normal viewing distance.

The LED backlight of UHANS' S1 can be very bright and achieves a rate of up to 525 cd/m² in the screen's center. However, it only reaches an average brightness of 471 cd/m² since the panel's illumination of 82 percent is heterogeneous compared with other devices. The realistic APL50 test (average picture level) with evenly distributed bright and dark areas reveals a similar maximum brightness of 533 cd/m².

440
cd/m²
520
cd/m²
478
cd/m²
431
cd/m²
525
cd/m²
466
cd/m²
446
cd/m²
503
cd/m²
433
cd/m²
Distribution of brightness
LCD
X-Rite i1Pro 2
Maximum: 525 cd/m² Average: 471.3 cd/m² Minimum: 34.27 cd/m²
Brightness Distribution: 82 %
Center on Battery: 525 cd/m²
Contrast: 571:1 (Black: 0.92 cd/m²)
ΔE Color 8.6 | 0.6-29.43 Ø6
ΔE Greyscale 10.6 | 0.64-98 Ø6.2
Gamma: 2.34
UHANS S1
IPS, 1280x720, 5
UMI Touch
IPS, 1920x1080, 5.5
Microsoft Lumia 550
IPS, 1280x720, 4.7
Coolpad Porto S
IPS, 1280x720, 5
LG K4
TN-TFT, 854x480, 4.5
Oukitel K4000 Pro
IPS, 1280x720, 5
Archos 50 Power
IPS, 1280x720, 5
Huawei P9
IPS-NEO, JDI, 1920x1080, 5.2
Screen
20%
27%
12%
-2%
18%
22%
54%
Brightness middle
525
424
-19%
536
2%
407
-22%
337
-36%
360
-31%
304
-42%
582
11%
Brightness
471
415
-12%
535
14%
403
-14%
342
-27%
367
-22%
311
-34%
563
20%
Brightness Distribution
82
91
11%
95
16%
92
12%
92
12%
89
9%
83
1%
91
11%
Black Level *
0.92
0.54
41%
0.62
33%
0.5
46%
0.44
52%
0.36
61%
0.31
66%
0.38
59%
Contrast
571
785
37%
865
51%
814
43%
766
34%
1000
75%
981
72%
1532
168%
Colorchecker DeltaE2000 *
8.6
6.9
20%
5.81
32%
7.9
8%
11.4
-33%
9.01
-5%
5.9
31%
4.4
49%
Colorchecker DeltaE2000 max. *
19.4
10.9
44%
12.3
37%
18.2
6%
22
-13%
12.58
35%
14.3
26%
7.4
62%
Greyscale DeltaE2000 *
10.6
6.8
36%
7.72
27%
8.9
16%
11
-4%
8.67
18%
4.6
57%
4.8
55%
Gamma
2.34 94%
1.99 111%
2.18 101%
2.46 89%
2.19 100%
2.66 83%
2.51 88%
2.2 100%
CCT
9487 69%
8131 80%
8701 75%
8332 78%
9372 69%
7641 85%
7088 92%
6175 105%
Color Space (Percent of AdobeRGB 1998)
77.78
Color Space (Percent of sRGB)
99.44

* ... smaller is better

The interaction of screen brightness and black level of 0.92 cd/m² result in a contrast of 571:1. The realistic APL50 test does not disclose a better black level (0.93 cd/m²), either. The analysis using a photospectrometer and CalMAN software shows some clear shifts in color (8.6) and grayscale (10.6) reproduction. Furthermore, the measured color temperature of 9487 Kelvin is too cool - however, that does not lead to a visible bluish tint in practice although the grayscale levels indicate this.

The color reproduction can be customized in the settings menu via the display modes standard and vivid.

CalMAN Colorspace (target color space: sRGB), display mode: standard
CalMAN Saturation Sweeps (target color space: sRGB), display mode: standard
CalMAN ColorChecker (target color space: sRGB), display mode: standard
CalMAN Grayscale (target color space: sRGB), display mode: standard
CalMAN Colorspace (target color space: sRGB), display mode: vivid
CalMAN Saturation Sweeps (target color space: sRGB), display mode: vivid
CalMAN ColorChecker (target color space: sRGB), display mode: vivid
CalMAN Grayscale (target color space: sRGB), display mode: vivid

The smartphone looks very good outdoors in bright ambient light thanks to its bright screen and always remains legible. The handset can even cope with direct sunlight without losing contents due to reflections. Thanks to the IPS technology, the liquid crystal display in UHANS' S1 has very stable viewing angles. Color aberrations are not an issue even at extreme viewing angles. The common IPS glow effect, i.e. dark areas are brightened fully in very flat viewing angles, is visible but not particularly prominent.

Viewing angles
Outdoor screen legibility
Outdoor screen legibility

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
25 ms ... rise ↗ and fall ↘ combined↗ 11 ms rise
↘ 14 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 41 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (24.9 ms).
       Response Time 50% Grey to 80% Grey
37 ms ... rise ↗ and fall ↘ combined↗ 17 ms rise
↘ 20 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. » 34 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (39.6 ms).

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 not detected

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9279 (minimum: 43 - maximum: 142900) Hz was measured.

Performance

MediaTek's MT installed in UHANS' S1 is an ARM SoC (system on a chip) that clocks at a frequency of 1.3 GHz. The mid-range processor has eight CPU cores based on the 64-bit capable Cortex A53 architecture. An ARM Mali-T720 MP4 and 3 GB of DDR2 RAM support the CPU.

The performance ensures a smoothly running system in routine use. Lags or stutters only appear in multitasking as well as in conjunction with high waste heat after intensive use. UHANS S1 has an edge on the rivals in the benchmarks and browser performance - solely UMi's Touch can keep up. The subjective performance impression is also above average - apps open and close very quickly. That is primarily owed to the fast internal storage that is on par with our Huawei's P9 test reference.

The performance of the integrated micro-SD card slot is also very satisfactory for the price range. We tested its speed with our Toshiba Exceria Pro M401 reference memory card (max. read: 95 MB/s, write 80 MB/s). The access rates of UHANS' handset are higher than that of the comparison devices with 48.15 MB/s (read) and 20.17 MB/s (write).

AndroBench 3-5
Sequential Write 256KB SDCard (sort by value)
UHANS S1
20.71 MB/s ∼24%
UMI Touch
21.02 MB/s ∼24% +1%
LG K4
18.7 MB/s ∼21% -10%
Archos 50 Power
MB/s ∼0% -100%
Huawei P9
24.83 MB/s ∼28% +20%
Sequential Read 256KB SDCard (sort by value)
UHANS S1
48.15 MB/s ∼50%
UMI Touch
42.92 MB/s ∼44% -11%
LG K4
28.52 MB/s ∼30% -41%
Archos 50 Power
MB/s ∼0% -100%
Huawei P9
55.05 MB/s ∼57% +14%
Random Write 4KB (sort by value)
UHANS S1
12.95 MB/s ∼5%
UMI Touch
14.63 MB/s ∼6% +13%
Coolpad Porto S
13.95 MB/s ∼6% +8%
LG K4
4.97 MB/s ∼2% -62%
Oukitel K4000 Pro
7.5 MB/s ∼3% -42%
Archos 50 Power
8.78 MB/s ∼4% -32%
Huawei P9
47.45 MB/s ∼19% +266%
Random Read 4KB (sort by value)
UHANS S1
20.25 MB/s ∼10%
UMI Touch
19.88 MB/s ∼10% -2%
Coolpad Porto S
22.52 MB/s ∼11% +11%
LG K4
16.05 MB/s ∼8% -21%
Oukitel K4000 Pro
13.79 MB/s ∼7% -32%
Archos 50 Power
26.47 MB/s ∼13% +31%
Huawei P9
39 MB/s ∼20% +93%
Sequential Write 256KB (sort by value)
UHANS S1
74.4 MB/s ∼13%
UMI Touch
72.47 MB/s ∼12% -3%
Coolpad Porto S
39.99 MB/s ∼7% -46%
LG K4
8.07 MB/s ∼1% -89%
Oukitel K4000 Pro
39.82 MB/s ∼7% -46%
Archos 50 Power
41.43 MB/s ∼7% -44%
Huawei P9
72.19 MB/s ∼12% -3%
Sequential Read 256KB (sort by value)
UHANS S1
240.77 MB/s ∼16%
UMI Touch
219.3 MB/s ∼15% -9%
Coolpad Porto S
168.23 MB/s ∼11% -30%
LG K4
120.84 MB/s ∼8% -50%
Oukitel K4000 Pro
191.29 MB/s ∼13% -21%
Archos 50 Power
199.7 MB/s ∼13% -17%
Huawei P9
281.26 MB/s ∼19% +17%
AnTuTu v6 - Total Score (sort by value)
UHANS S1
39029 Points ∼13%
UMI Touch
38617 Points ∼13% -1%
Microsoft Lumia 550
25825 Points ∼9% -34%
Coolpad Porto S
25415 Points ∼9% -35%
LG K4
22998 Points ∼8% -41%
Oukitel K4000 Pro
24028 Points ∼8% -38%
Archos 50 Power
23996 Points ∼8% -39%
Huawei P9
95743 Points ∼33% +145%
Geekbench 3
64 Bit Multi-Core Score (sort by value)
UHANS S1
2759 Points ∼7%
UMI Touch
2798 Points ∼7% +1%
Archos 50 Power
1331 Points ∼4% -52%
Huawei P9
6522 Points ∼17% +136%
64 Bit Single-Core Score (sort by value)
UHANS S1
621 Points ∼13%
UMI Touch
626 Points ∼13% +1%
Archos 50 Power
471 Points ∼10% -24%
Huawei P9
1767 Points ∼36% +185%
3DMark
2560x1440 Sling Shot OpenGL ES 3.0 Physics (sort by value)
UHANS S1
993 Points ∼22%
UMI Touch
1045 Points ∼23% +5%
Oukitel K4000 Pro
604 Points ∼13% -39%
Huawei P9
2510 Points ∼55% +153%
2560x1440 Sling Shot OpenGL ES 3.0 Graphics (sort by value)
UHANS S1
248 Points ∼2%
UMI Touch
241 Points ∼2% -3%
Oukitel K4000 Pro
100 Points ∼1% -60%
Huawei P9
1080 Points ∼10% +335%
2560x1440 Sling Shot OpenGL ES 3.0 (sort by value)
UHANS S1
298 Points ∼4%
UMI Touch
291 Points ∼4% -2%
Oukitel K4000 Pro
123 Points ∼2% -59%
Archos 50 Power
122 Points ∼1% -59%
Huawei P9
1237 Points ∼15% +315%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
UHANS S1
10211 Points ∼12%
UMI Touch
10368 Points ∼12% +2%
Coolpad Porto S
7413 Points ∼9% -27%
LG K4
7018 Points ∼8% -31%
Oukitel K4000 Pro
7370 Points ∼9% -28%
Archos 50 Power
6981 Points ∼8% -32%
Huawei P9
15517 Points ∼18% +52%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
UHANS S1
6705 Points ∼1%
UMI Touch
6186 Points ∼1% -8%
Coolpad Porto S
2590 Points ∼0% -61%
LG K4
2171 Points ∼0% -68%
Oukitel K4000 Pro
2609 Points ∼0% -61%
Archos 50 Power
2581 Points ∼0% -62%
Huawei P9
21577 Points ∼4% +222%
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
UHANS S1
7259 Points ∼3%
UMI Touch
6795 Points ∼3% -6%
Coolpad Porto S
3028 Points ∼1% -58%
LG K4
2565 Points ∼1% -65%
Oukitel K4000 Pro
3046 Points ∼1% -58%
Archos 50 Power
3001 Points ∼1% -59%
Huawei P9
19854 Points ∼8% +174%
PCMark for Android - Work performance score (sort by value)
UHANS S1
4191 Points ∼21%
UMI Touch
3787 Points ∼19% -10%
Coolpad Porto S
2893 Points ∼15% -31%
LG K4
2644 Points ∼13% -37%
Oukitel K4000 Pro
2757 Points ∼14% -34%
Archos 50 Power
2824 Points ∼14% -33%
Huawei P9
7058 Points ∼36% +68%
BaseMark OS II
Web (sort by value)
UHANS S1
640 Points ∼31%
UMI Touch
576 Points ∼28% -10%
Microsoft Lumia 550
72 Points ∼4% -89%
Coolpad Porto S
599 Points ∼29% -6%
LG K4
536 Points ∼26% -16%
Oukitel K4000 Pro
563 Points ∼28% -12%
Archos 50 Power
9 Points ∼0% -99%
Huawei P9
1029 Points ∼51% +61%
Graphics (sort by value)
UHANS S1
431 Points ∼1%
UMI Touch
429 Points ∼1% 0%
Microsoft Lumia 550
190 Points ∼1% -56%
Coolpad Porto S
173 Points ∼1% -60%
LG K4
141 Points ∼0% -67%
Oukitel K4000 Pro
173 Points ∼1% -60%
Archos 50 Power
173 Points ∼1% -60%
Huawei P9
1583 Points ∼5% +267%
Memory (sort by value)
UHANS S1
843 Points ∼11%
UMI Touch
787 Points ∼10% -7%
Microsoft Lumia 550
685 Points ∼9% -19%
Coolpad Porto S
467 Points ∼6% -45%
LG K4
139 Points ∼2% -84%
Oukitel K4000 Pro
409 Points ∼5% -51%
Archos 50 Power
643 Points ∼9% -24%
Huawei P9
2627 Points ∼35% +212%
System (sort by value)
UHANS S1
1281 Points ∼8%
UMI Touch
1343 Points ∼8% +5%
Microsoft Lumia 550
529 Points ∼3% -59%
Coolpad Porto S
905 Points ∼5% -29%
LG K4
816 Points ∼5% -36%
Oukitel K4000 Pro
840 Points ∼5% -34%
Archos 50 Power
911 Points ∼6% -29%
Huawei P9
3930 Points ∼24% +207%
Overall (sort by value)
UHANS S1
807 Points ∼10%
UMI Touch
717 Points ∼8% -11%
Microsoft Lumia 550
265 Points ∼3% -67%
Coolpad Porto S
458 Points ∼5% -43%
LG K4
304 Points ∼4% -62%
Oukitel K4000 Pro
428 Points ∼5% -47%
Archos 50 Power
176 Points ∼2% -78%
Huawei P9
2025 Points ∼24% +151%
Mozilla Kraken 1.1 - Total Score (sort by value)
UHANS S1
12510.3 ms * ∼21%
UMI Touch
13953 ms * ∼23% -12%
Microsoft Lumia 550
21884 ms * ∼37% -75%
Coolpad Porto S
32901.1 ms * ∼55% -163%
LG K4
18213.5 ms * ∼31% -46%
Oukitel K4000 Pro
18250.5 ms * ∼31% -46%
Archos 50 Power
18480.5 ms * ∼31% -48%
Huawei P9
2922.6 ms * ∼5% +77%
JetStream 1.1 - Total Score (sort by value)
UHANS S1
18.415 Points ∼5%
UMI Touch
17.614 Points ∼5% -4%
Microsoft Lumia 550
13.006 Points ∼4% -29%
Coolpad Porto S
14.168 Points ∼4% -23%
LG K4
13 Points ∼4% -29%
Oukitel K4000 Pro
13.445 Points ∼4% -27%
Archos 50 Power
13.16 Points ∼4% -29%
Huawei P9
68.4 Points ∼19% +271%
Octane V2 - Total Score (sort by value)
UHANS S1
2972 Points ∼6%
UMI Touch
2562 Points ∼5% -14%
Microsoft Lumia 550
2170 Points ∼4% -27%
Coolpad Porto S
2088 Points ∼4% -30%
LG K4
2049 Points ∼4% -31%
Oukitel K4000 Pro
2200 Points ∼4% -26%
Archos 50 Power
2116 Points ∼4% -29%
Huawei P9
11783 Points ∼22% +296%

Legend

 
UHANS S1 Mediatek MT6753, ARM Mali-T720 MP4, 32 GB eMMC Flash
 
UMI Touch Mediatek MT6753, ARM Mali-T720 MP4, 16 GB eMMC Flash
 
Microsoft Lumia 550 Qualcomm Snapdragon 210 MSM8909, Qualcomm Adreno 304, 8 GB eMMC Flash
 
Coolpad Porto S Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash
 
LG K4 Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash
 
Oukitel K4000 Pro Mediatek MT6735, , 16 GB eMMC Flash
 
Archos 50 Power Mediatek MT6735, ARM Mali-T720 MP4, 16 GB eMMC Flash
 
Huawei P9 HiSilicon Kirin 955, ARM Mali-T880 MP4, 32 GB eMMC Flash

* ... smaller is better

Games

The Mali-T720 MP4 graphics unit in UHANS' S1 barely has problems with up-to-date Android games like "Need for Speed No Limits" and "Modern Combat 5". However, the handset gets very warm after prolonged gaming use, and the performance drops noticeably.

"Need for Speed No Limits"
"Modern Combat 5"

Emissions

Temperature

UHANS' S1 already heats up evidently when idling with maximum idle temperatures of good 37.8 °C. The temperature development increases even more during load. We measured a maximum of 44.6 °C in the test. When looking at the average temperatures of UHANS' S1, a prominent waste heat is obvious compared to the opponents that will be noticed unfavorably especially during computing-intensive applications.

Temperature development: Maximum load (front)
Temperature development: Maximum load (rear)
Max. Load
 44 °C
111 F
44.6 °C
112 F
39.1 °C
102 F
 
 41.8 °C
107 F
42.7 °C
109 F
39.6 °C
103 F
 
 38 °C
100 F
38.8 °C
102 F
37.9 °C
100 F
 
Maximum: 44.6 °C = 112 F
Average: 40.7 °C = 105 F
37.4 °C
99 F
37.4 °C
99 F
42.3 °C
108 F
34.9 °C
95 F
37 °C
99 F
43.2 °C
110 F
34.3 °C
94 F
35 °C
95 F
39.4 °C
103 F
Maximum: 43.2 °C = 110 F
Average: 37.9 °C = 100 F
Power Supply (max.)  38 °C = 100 F | Room Temperature 21.9 °C = 71 F | Voltcraft IR-260
(-) The average temperature for the upper side under maximal load is 40.7 °C / 105 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 44.6 °C / 112 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 43.2 °C / 110 F, compared to the average of 34.1 °C / 93 F
(±) In idle usage, the average temperature for the upper side is 36.1 °C / 97 F, compared to the device average of 33.1 °C / 92 F.

Speaker

The mono speaker on the casing's lower edge achieves a maximum volume of 84 dB(A). Thus, the UHANS' S1 volume is still satisfactory for everyday use, but the sound quality is not. The sound is concentrated in the medium and high tones of 1 to 8 kHz. Overall, the sound impression lacks low tones below 500 Hz. Furthermore, audio playback sounds very tinny.

The 3.5 mm jack can be used for a better music playback quality. However, users will need their own headphones as none are included.

Pink Noise speaker test

Energy Management

Power Consumption

UHANS' S1 manages its energy well in idle mode. The idle power consumption of averagely 1.13 watts is clearly lower than that of the comparison devices. However, the load power consumption could be a bit lower considering the energy requirements of the 5-inch rivals.

Power Consumption
Off / Standbydarklight 0.08 / 0.1 Watt
Idledarkmidlight 0.7 / 1.13 / 1.25 Watt
Load midlight 4.39 / 5.43 Watt
 color bar
Key: min: dark, med: mid, max: light        Gossen Metrahit Energy
UHANS S1
2200 mAh
UMI Touch
4000 mAh
Microsoft Lumia 550
2100 mAh
Coolpad Porto S
2000 mAh
LG K4
1940 mAh
Oukitel K4000 Pro
4600 mAh
Archos 50 Power
4000 mAh
Huawei P9
3000 mAh
Power Consumption
-33%
-44%
-38%
-17%
-154%
-88%
-36%
Idle Minimum *
0.7
0.89
-27%
0.55
21%
1.16
-66%
1.15
-64%
2.74
-291%
1.66
-137%
0.77
-10%
Idle Average *
1.13
2
-77%
2.69
-138%
2.21
-96%
1.76
-56%
3.92
-247%
2.88
-155%
2.36
-109%
Idle Maximum *
1.25
2.1
-68%
2.93
-134%
2.24
-79%
1.82
-46%
4.05
-224%
3.46
-177%
2.37
-90%
Load Average *
4.39
3.87
12%
3.94
10%
3.34
24%
2.71
38%
4.84
-10%
3.96
10%
3.09
30%
Load Maximum *
5.43
5.79
-7%
4.24
22%
3.95
27%
3.15
42%
5.42
-0%
4.34
20%
5.35
1%

* ... smaller is better

Battery Runtime

The battery in UHANS' S1 is built by the Chinese lithium ion battery manufacturer BAK. The nominal output of 2200 mAh is a bit tight even for a 5-inch smartphone with comparatively high power consumption during load. The runtime of 5 hours and 9 minutes are correspondingly short in our WiFi test. Rivals like Oukitel's K4000 Pro are considerably longer lasting. However, a day with UHANS' S1 should be possible with moderate use.

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3
5h 9min
UHANS S1
2200 mAh
UMI Touch
4000 mAh
Microsoft Lumia 550
2100 mAh
Coolpad Porto S
2000 mAh
LG K4
1940 mAh
Oukitel K4000 Pro
4600 mAh
Archos 50 Power
4000 mAh
Battery Runtime
WiFi v1.3
309
553
79%
445
44%
504
63%
452
46%
711
130%
592
92%

Pros

+ 32 GB ROM
+ 3 GB RAM
+ feel
+ build
+ performance
+ fingerprint scanner
+ bright IPS panel ...

Cons

- ... with high black level
- speaker
- mediocre battery life
- high waste heat during load

Verdict

In review: UHANS S1. Review sample courtesy of UHANS.

The first generation of the S series from the Chinese smartphone label UHANS impresses with a very good total package in our test. At a street price of roughly 125 Euros (at test time), the entry-level offers features normally only found in the mid-range in form of 32 GB of internal storage, a well-functioning fingerprints scanner, 3 GB of RAM, and a quality casing made of metal and glass. The same is true for the handset's performance - the subjective operating speed is outstanding for the price range.

However, we also have a few points of criticism: The screen in UHANS' S1 is bright but also relatively unevenly illuminated. Furthermore, the black level, contrast, and IPS panel's color calibration are not completely convincing although the screen's quality is satisfactory for routine use. The sound impression of the installed speakers is also tinny. The biggest drawback of the S1 is, however, its temperature development - UHANS' handset is not suitable for prolonged gaming sessions, also because the battery life would not allow this. The waste heat is kept within limits in daily use (browsing, social media, calls).

Buyers will not do much wrong with UHANS' S1 - the entry-level handset has a very low purchase price for the offered performance. Nevertheless, we cannot give the smartphone an unconditional purchase recommendation due to temperature development and limited battery life. Perhaps UHANS will make improvements here via software updates.

UHANS S1 - 07/06/2016 v5.1(old)
Marcus Herbrich

Chassis
89%
Keyboard
70 / 75 → 93%
Pointing Device
92%
Connectivity
42 / 60 → 71%
Weight
92%
Battery
83%
Display
79%
Games Performance
17 / 63 → 28%
Application Performance
38 / 70 → 55%
Temperature
85%
Noise
100%
Audio
61 / 91 → 67%
Camera
74%
Average
71%
82%
Smartphone - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > UHANS S1 Smartphone Review
Marcus Herbrich, 2016-08- 1 (Update: 2018-05-15)