Compare phones
| Global Score | |
| 71.9 | 81.3 |
| Basic Information | |
| Samsung | |
| Android 9.0 Pie | Android 10 |
| 2019-10-14 | 2020-04-27 |
| 6.25 x 2.96 x 0.35 inches | 6.27 x 2.88 x 0.34 inches |
| 6.56 ounces | 6.53 ounces |
| Diamond black and Twilight blue | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Glass (Corning Gorilla Glass 5) and Metal | Plastic |
| Scratch-Resistant Glass | -- |
| $ 549.00 | -- |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 411 pixels per inch |
| 430 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | MediaTek Helio P65 MT6768 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 640 GPU | Mali-G52 MC2 GPU |
| 9.72 | 9.09 |
| 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 | 48.00 MP + 20.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (15 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 3840 x 2160 (60 fps) (4K) slow motion video | -- |
| 11.22 | 10.89 |
| 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 | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| 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 |
Comparison review
Galaxy A31 is better than nubia Z20, having an 81.3 score against 71.9. These phones use Android operating system, but Galaxy A31 has the older 10 version while nubia Z20 has Android 9.0 Pie version. Galaxy A31's design is just a bit thinner and just a little lighter than nubia Z20, although both were released with only a couple of months difference.
Nubia Z20 has just a bit better processing power than Galaxy A31, and although they both have the same number of cores, the nubia Z20 also has a higher amount of RAM memory. The nubia Z20 counts with a slightly better display than Samsung Galaxy A31, although it has a bit worse resolution of 1080 x 2340px and a little inferior count of pixels per inch in the screen, they both have a same size screen.
Nubia Z20 captures slightly better pictures and videos than Samsung Galaxy A31, and although they both have a camera with a 48 MP resolution and a same size back-facing camera sensor, the nubia Z20 also has a larger aperture for better photos and video in poorly lited situations and a much better 7680x4320 video quality.
The Galaxy A31 counts with a better storage capacity for games and applications than nubia Z20, because although it has just 64 GB internal storage, it also counts with a SD extension slot that admits up to 512 GB. Samsung Galaxy A31 features greater battery life than nubia Z20, because it has a 5000mAh battery capacity.
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