Umidigi F2 Smartphone Review – 48 Megapixel in Affordable
Comparison Devices
Bewertung | Rating Version | Datum | Modell | Gewicht | Laufwerk | Groesse | Aufloesung | Preis ab |
---|---|---|---|---|---|---|---|---|
78.1 % | 7 | 04/2020 | Umidigi F2 Helio P70, Mali-G72 MP3 | 215 g | 128 GB UFS 2.0 Flash | 6.53" | 2340x1080 | |
81.3 % | 7 | 04/2020 | Huawei P40 Lite Kirin 810, Mali-G52 MP6 | 183 g | 128 GB UFS 2.1 Flash | 6.40" | 2310x1080 | |
79.8 % | 7 | 01/2020 | Samsung Galaxy A51 Exynos 9611, Mali-G72 MP3 | 172 g | 128 GB UFS 2.0 Flash | 6.50" | 2400x1080 | |
78.4 % | 7 | 11/2019 | Motorola Moto G8 Plus SD 665, Adreno 610 | 188 g | 64 GB eMMC Flash | 6.30" | 2280x1080 |
Case, Equipment and Operation - Slow WLAN
Umidigi does not have really expensive smartphones on offer: the most expensive models are around 400 euros. The Umidigi F2, which we take a closer look at in this review, costs 250 euros on the internet, but still comes with a decent equipment: 128 GB UFS 2.1 memory, 6 GB RAM, dual SIM and its own microSD slot. NFC is also on board, but only older Bluetooth 4.2, but there is support for numerous LTE networks, which makes it possible to use it in many countries.
In our WiFi test with the reference router Linksys Nighthawk AX12, however, the smartphone cannot play out its WiFi 5 and only offers speeds on WiFi 4 level.
The case has a relatively simple design, with a glossy black or gradient back. The Umidigi phone looks a bit bulky and is also not a lightweight at 215 grams. However, it has a clean and stable finish, only pressure on the screen gets through to the liquid crystal.
The operation is precise and reactive, even the touchscreen surface gives no reason for criticism. On the right, there is a fingerprint sensor in the standby button, there is a minimal delay until it unlocks the smartphone, but overall this is not disturbing.
Pure Android 10 is pre-installed, the security patches are hopelessly outdated at the time of testing.
Networking | |
iperf3 transmit AX12 | |
Huawei P40 Lite | |
Samsung Galaxy A51 | |
Motorola Moto G8 Plus | |
Umidigi F2 | |
iperf3 receive AX12 | |
Samsung Galaxy A51 | |
Huawei P40 Lite | |
Motorola Moto G8 Plus | |
Umidigi F2 |
Cameras - Umidigi with High Resolution Cam
A 48 megapixel camera is currently also built into high-quality smartphones like the OnePlus 8 Pro, and the Umidigi F2 wants to get a bit of the hype. Now, of course, you can't expect a picture quality for 250 euro, which is equivalent to a mobile phone for almost 1,000 euro. But as our test of the Umidigi Power 3 has already shown, even the cheaper camera sensors can now take decent pictures.
The Umdigi F2 can also take sharp pictures with surprisingly many details under good light, although the 48 megapixels are only used if desired, usually 4 pixels are combined into one to achieve more light output. This way the pictures also appear strongly exposed, sometimes a little too bright, so that colors turn pale. Pixel artefacts in the sky in the surrounding image also show that you are not dealing with one of the highest quality sensors. Under low light the brightening is pleasing, but the detail sharpness could be higher here.
There is a wide-angle lens as well as a telephoto lens, but both have to be chosen carefully, so you can't switch between them automatically via zoom.
Videos can only be recorded in Full HD and at 30 fps, so the quality is decent here.
The front camera has a lush 32 megapixels, and takes well-lit and detailed pictures.
Display - Strong Blue Cast
The screen can become reasonably bright at 512 cd/m² on average. It has a slightly extended Full HD resolution, which is standard in this price range. The contrast is also on par with the rest of the range, but it's not really good, as colors look a bit pale on the display. The Samsung Galaxy A51 with AMOLED display has a clear advantage here.
We use the CalMAN software and special measuring devices to determine the accuracy of the color display and here, the Umidigi F2 with a strong blue cast and high deviations won't win any prizes. On the other hand, we do not notice any PWM flickering, which is a blessing for sensitive people.
|
Brightness Distribution: 92 %
Center on Battery: 512 cd/m²
Contrast: 1089:1 (Black: 0.47 cd/m²)
ΔE Color 6.53 | 0.5-29.43 Ø5
ΔE Greyscale 7 | 0.57-98 Ø5.3
99% sRGB (Calman 2D)
Gamma: 2.494
Umidigi F2 IPS, 2340x1080, 6.53 | Huawei P40 Lite IPS, 2310x1080, 6.40 | Samsung Galaxy A51 AMOLED, 2400x1080, 6.50 | Motorola Moto G8 Plus IPS, 2280x1080, 6.30 | |
---|---|---|---|---|
Response Times | -17% | 18% | 5% | |
Response Time Grey 50% / Grey 80% * | 40 ? | 46.8 ? -17% | 26 ? 35% | 36 ? 10% |
Response Time Black / White * | 24 ? | 28 ? -17% | 24 ? -0% | 24 ? -0% |
PWM Frequency | 242.7 | 463 ? | ||
Screen | 14% | 33% | 11% | |
Brightness middle | 512 | 478 -7% | 589 15% | 597 17% |
Brightness | 512 | 448 -12% | 589 15% | 596 16% |
Brightness Distribution | 92 | 87 -5% | 94 2% | 93 1% |
Black Level * | 0.47 | 0.49 -4% | 0.52 -11% | |
Contrast | 1089 | 976 -10% | 1148 5% | |
Colorchecker dE 2000 * | 6.53 | 3 54% | 2.22 66% | 5.93 9% |
Colorchecker dE 2000 max. * | 12.55 | 5.6 55% | 8.24 34% | 9.42 25% |
Greyscale dE 2000 * | 7 | 4.1 41% | 2.6 63% | 5.3 24% |
Gamma | 2.494 88% | 2.26 97% | 2.111 104% | 2.232 99% |
CCT | 7119 91% | 7282 89% | 6508 100% | 7632 85% |
Total Average (Program / Settings) | -2% /
8% | 26% /
29% | 8% /
10% |
* ... smaller is better
Display Response Times
↔ Response Time Black to White | ||
---|---|---|
24 ms ... rise ↗ and fall ↘ combined | ↗ 9 ms rise | |
↘ 13 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 0.1 (minimum) to 240 (maximum) ms. » 48 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (21.6 ms). | ||
↔ Response Time 50% Grey to 80% Grey | ||
40 ms ... rise ↗ and fall ↘ combined | ↗ 21 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 0.2 (minimum) to 636 (maximum) ms. » 55 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (33.9 ms). |
Screen Flickering / PWM (Pulse-Width Modulation)
Screen flickering / PWM not detected | |||
In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 18110 (minimum: 5 - maximum: 3846000) Hz was measured. |
Performance, Emissions and Battery Life - Umdigi F2 as Continuous Operation
MediaTek's Helio P70 is a midrange processor that is well equipped for everyday tasks. But other smartphones at this price level offer even more power, like the Huawei P40 Lite. The memory is reasonably fast for its price range, but here too, things are even faster, as the Huawei smartphone proves. The microSD reader can't recognize our Toshiba Exceria Pro M501 as the reference microSD, and only slow transfer rates are possible with the slower Hama card.
The Umidigi F2 can get quite warm, which can become unpleasant at a maximum of 44°C and longer skin contact. The loudspeaker on the bottom edge is reasonably loud and sounds acceptable, highs aren't overemphasized too much and the mids are quite present.
In terms of battery life, there are definitely very good 17:58 hours in our WLAN test, but a very high capacity battery is also built into the device for this. Thus, the distance to the clearly lighter Huawei P40 Lite isn't huge. It's probably enough for 3 days without recharging in moderate use, but those who leave their smartphone unused for a longer time will probably get by even longer. The smartphone is fully recharged in just under 2 hours thanks to quick charging.
Geekbench 5.5 | |
Single-Core (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Average Mediatek Helio P70 (282 - 320, n=7) | |
Average of class Smartphone (119 - 2138, n=211, last 2 years) | |
Multi-Core (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Average Mediatek Helio P70 (1184 - 1475, n=7) | |
Average of class Smartphone (473 - 6681, n=211, last 2 years) |
PCMark for Android | |
Work performance score (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Samsung Galaxy A51 | |
Motorola Moto G8 Plus | |
Average Mediatek Helio P70 (7160 - 11781, n=10) | |
Average of class Smartphone (10884 - 19297, n=2, last 2 years) | |
Work 2.0 performance score (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Samsung Galaxy A51 | |
Motorola Moto G8 Plus | |
Average Mediatek Helio P70 (5992 - 8365, n=12) | |
Average of class Smartphone (9101 - 12871, n=4, last 2 years) |
GFXBench | |
on screen Aztec Ruins Normal Tier Onscreen (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Samsung Galaxy A51 | |
Motorola Moto G8 Plus | |
Average Mediatek Helio P70 (6.9 - 15, n=12) | |
Average of class Smartphone (3.6 - 123, n=218, last 2 years) | |
1920x1080 Aztec Ruins Normal Tier Offscreen (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Samsung Galaxy A51 | |
Motorola Moto G8 Plus | |
Average Mediatek Helio P70 (6.1 - 9.3, n=12) | |
Average of class Smartphone (2.3 - 229, n=218, last 2 years) | |
on screen Aztec Ruins High Tier Onscreen (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Samsung Galaxy A51 | |
Motorola Moto G8 Plus | |
Average Mediatek Helio P70 (2.6 - 8.7, n=12) | |
Average of class Smartphone (2.8 - 105, n=218, last 2 years) | |
2560x1440 Aztec Ruins High Tier Offscreen (sort by value) | |
Umidigi F2 | |
Huawei P40 Lite | |
Samsung Galaxy A51 | |
Motorola Moto G8 Plus | |
Average Mediatek Helio P70 (2.8 - 3.7, n=12) | |
Average of class Smartphone (0.85 - 94, n=218, last 2 years) |
Umidigi F2 | Huawei P40 Lite | Samsung Galaxy A51 | Motorola Moto G8 Plus | Average 128 GB UFS 2.0 Flash | Average of class Smartphone | |
---|---|---|---|---|---|---|
AndroBench 3-5 | 136% | 69% | 67% | 66% | 372% | |
Sequential Read 256KB | 519 | 913 76% | 496.1 -4% | 302.5 -42% | 530 ? 2% | 1468 ? 183% |
Sequential Write 256KB | 189 | 181.7 -4% | 184.9 -2% | 217.4 15% | 215 ? 14% | 1078 ? 470% |
Random Read 4KB | 157.1 | 157.3 0% | 110.8 -29% | 59.9 -62% | 129.6 ? -18% | 242 ? 54% |
Random Write 4KB | 30.2 | 175.4 481% | 104.4 246% | 124.9 314% | 100.7 ? 233% | 266 ? 781% |
Sequential Read 256KB SDCard | 30.2 ? | 82.6 ? 174% | 73 ? 142% | 72.6 ? 140% | 68.3 ? 126% | |
Sequential Write 256KB SDCard | 37.9 ? | 70.6 ? 86% | 60.1 ? 59% | 52.2 ? 38% | 53.2 ? 40% |
Temperature
(±) The maximum temperature on the upper side is 42.5 °C / 109 F, compared to the average of 35 °C / 95 F, ranging from 21.9 to 56 °C for the class Smartphone.
(±) The bottom heats up to a maximum of 44 °C / 111 F, compared to the average of 33.8 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 28.9 °C / 84 F, compared to the device average of 32.7 °C / 91 F.
Speakers
Umidigi F2 audio analysis
(±) | speaker loudness is average but good (81.4 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 65.4% lower than median
(+) | bass is linear (0% delta to prev. frequency)
Mids 400 - 2000 Hz
(-) | nearly no mids - on average 65.4% lower than median
(+) | mids are linear (0% delta to prev. frequency)
Highs 2 - 16 kHz
(-) | nearly no highs - on average 65.4% lower than median
(+) | highs are linear (0% delta to prev. frequency)
Overall 100 - 16.000 Hz
(-) | overall sound is not linear (121.2% difference to median)
Compared to same class
» 88% of all tested devices in this class were better, 10% similar, 2% worse
» The best had a delta of 12%, average was 38%, worst was 134%
Compared to all devices tested
» 96% of all tested devices were better, 3% similar, 1% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Huawei P40 Lite audio analysis
(+) | speakers can play relatively loud (88.2 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 28.6% lower than median
(±) | linearity of bass is average (10.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 5.6% lower than median
(+) | mids are linear (5.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.9% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (20.3% difference to median)
Compared to same class
» 27% of all tested devices in this class were better, 9% similar, 64% worse
» The best had a delta of 12%, average was 38%, worst was 134%
Compared to all devices tested
» 47% of all tested devices were better, 8% similar, 44% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Battery Life
Umidigi F2 5150 mAh | Huawei P40 Lite 4200 mAh | Samsung Galaxy A51 4000 mAh | Motorola Moto G8 Plus 4000 mAh | Average of class Smartphone | |
---|---|---|---|---|---|
Battery Runtime | |||||
WiFi Websurfing | 1078 | 1007 -7% | 698 -35% | 980 -9% | 908 ? -16% |
Pros
Cons
Verdict – Good Camera Phone with Weak Points
The Umidigi F2 has a decent camera with a wide angle option. It's by no means on par with top-of-the-range smartphones, but overall it takes decent pictures.
You should also take into account the manufacturer's sloppy handling of security patches and the warranty on paper, which is only complicated to honour in many countries due to the possible need to ship the camera to China. Also the high warming can be a problem. In addition, the screen has a good resolution, but falsifies colours and is a little pale in appearance. The WLAN also falls short of expectations.
The flexible camera system with decent pictures is convincing for the price, but you have to put up with some weak points on the Umidigi F2.
All in all, the Umidigi F2 is a smartphone that should be looked at by those for whom a flexible camera equipped with solid image quality is more important than anything else. The battery life is also good, but you should not rely on the outdated security patches.
Umidigi F2
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04/24/2020 v7
Florian Schmitt