Compare phones
| Global Score | |
| 71.9 | 86.5 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 11, 10 |
| 2019-10-14 | 2020-03-05 |
| 6.25 x 2.96 x 0.35 inches | 6.27 x 2.96 x 0.35 inches |
| 6.56 ounces | 6.74 ounces |
| Diamond black and Twilight blue | Black, Blue and Red |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 549.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 403 pixels per inch |
| 430 cd/m2 brightness | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.72 | 9.36 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 48.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.59 inches (1/1.7") sensor |
| 7680 x 4320 (15 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 3840 x 2160 (60 fps) (4K) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.22 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy M31 has a global score of 86.5, which is way better than the nubia Z20's 71.9 overall score. Both phones in this comparison include Android OS, but Samsung Galaxy M31 has 11 version and nubia Z20 has Android 9.0 Pie. Samsung Galaxy M31's design has the same thickness than nubia Z20, but it is a little heavier.
The Galaxy M31 and nubia Z20 have really similar displays, and although the Galaxy M31 has less brightness, they both have a higher pixel number in each inch of display, a display of the same size and an equal resolution of 1080 x 2340px. Galaxy M31 has a bigger memory capacity for apps and games than nubia Z20, because although it has only 64 GB internal storage, it also counts with a SD extension slot that holds a maximum of 512 GB.
Nubia Z20 has just a little better hardware performance than Galaxy M31, and although they both have a Octa-Core CPU, the nubia Z20 also has a higher amount of RAM memory. The Galaxy M31 shoots a bit better videos and photos than nubia Z20, because although it has a tinier camera aperture which is not so good for low-light images and videos, and they both have the same 3840x2160 (4K) video resolution, the Galaxy M31 also counts with faster video frame rate, a larger back camera sensor and a back facing camera with much more megapixels.
The Galaxy M31 features a much better battery life than nubia Z20, because it has a 6000mAh battery size against 4000mAh.
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