Compare phones
| Global Score | |
| 83.3 | 81.3 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10, 9.0 Pie, 8.0 Oreo | Android 10 |
| 2018-06-05 | 2020-04-27 |
| 6.10 x 2.94 x 0.30 inches | 6.27 x 2.88 x 0.34 inches |
| 6.17 ounces | 6.53 ounces |
| Black, Blue, Gold and White | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| Glass (Corning Gorilla Glass 5) | Plastic |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.2 inches | 6.4 inches |
| 2248 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 402 pixels per inch | 411 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | MediaTek Helio P65 MT6768 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 630 GPU | Mali-G52 MC2 GPU |
| 9.63 | 9.09 |
| Storage | |
| 256 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 11.74 |
| Camera | |
| 12.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 56.00mm focal length | 26.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 9.9 | 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 | |
| 3400mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.36 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi Mi 8 has a global score of 83.3, which is a bit better than the Galaxy A31's 81.3 global score. The Xiaomi Mi 8 is an older cellphone than Galaxy A31, but it is just a bit lighter and somewhat thinner anyway. These devices include the same Android 10 OS. The Xiaomi Mi 8 has a bit better processing unit than Galaxy A31, and although they both have a Octa-Core processor, the Xiaomi Mi 8 also has 2 GB more RAM.
Xiaomi Mi 8 features a bit more vivid screen than Galaxy A31, although it has a bit worse 1080 x 2248 resolution, a quite smaller screen and a little bit less pixels per inch of display. Xiaomi Mi 8 has a better storage capacity to install applications and games or saving photos and videos than Samsung Galaxy A31, because although it has no SD card slot, it also counts with 256 GB internal memory capacity.
Galaxy A31 counts with just a bit better camera than Xiaomi Mi 8, because although it has a tinier camera aperture which is not good for taking photographs or videos in low light environments, and they both have the same video frame rates and the same 1920x1080 (Full HD) video definition, the Galaxy A31 also counts with a way larger back-facing camera sensor which gives a way better image and video quality and a back facing camera with much more mega-pixels.
The Galaxy A31 features a really longer battery life than Xiaomi Mi 8, because it has a 5000mAh battery size against 3400mAh.
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