Compare phones
| Global Score | |
| 81.3 | 83.8 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | -- |
| 2020-04-27 | 2018-11-01 |
| 6.27 x 2.88 x 0.34 inches | 6.22 x 2.94 x 0.33 inches |
| 6.53 ounces | 7.69 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Black, Blue and Green |
| Plastic | Aluminum and Ceramic |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED |
| 411 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.6 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G52 MC2 GPU | Adreno 630 GPU |
| 9.09 | 9.63 |
| Storage | |
| 64 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 13.3 |
| Camera | |
| 48.00 MP + 20.00 MP | 12.20 MP + 24.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 10.89 | 10.34 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3200mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 5.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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
Xiaomi Mi Mix 3 is just a bit better than the Galaxy A31, having an 83.8 score against 81.3. Xiaomi Mi Mix 3 is an older and heavier phone than the Galaxy A31, but Xiaomi managed to make it just a little bit thinner anyway. The Xiaomi Mi Mix 3 features a slightly better screen than Samsung Galaxy A31, although it has a bit inferior quantity of pixels per inch in the display and a quite lower resolution of 1080 x 2340, they both have a screen of the same size.
The Xiaomi Mi Mix 3 has a little better processing power than Galaxy A31, and although they both have 8 cpu cores, the Xiaomi Mi Mix 3 also has a higher amount of RAM memory. The Xiaomi Mi Mix 3 counts with a bigger memory capacity for applications, games, photos and videos than Samsung Galaxy A31, because although it has no SD memory slot, it also counts with 192 GB more internal storage.
Galaxy A31 counts with a much longer battery lifetime than Xiaomi Mi Mix 3, because it has a 56% greater battery size. The Galaxy A31 has just a bit better camera than Xiaomi Mi Mix 3, because although it has lower 30 frames per second video frame rate and a smaller diafragm aperture, and they both have the same (Full HD) video quality, the Galaxy A31 also counts with a way larger sensor which offers a way higher image and video quality and a back camera with much more megapixels.
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