Compare phones
| Global Score | |
| 86.5 | 83.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 10, 9.0 Pie, 8.0 Oreo |
| 2020-03-05 | 2018-06-05 |
| 6.27 x 2.96 x 0.35 inches | 6.10 x 2.94 x 0.30 inches |
| 6.74 ounces | 6.17 ounces |
| Black, Blue and Red | Black, Blue, Gold and White |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.2 inches |
| 2340 x 1080 pixels | 2248 x 1080 pixels |
| Super AMOLED | AMOLED |
| 403 pixels per inch | 402 pixels per inch |
| 420 cd/m2 brightness | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 8.6 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 630 GPU |
| 9.36 | 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 | |
| 64.00 MP + 32.00 MP | 12.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 56.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.39 inches (1/2.55") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.1 | 9.9 |
| 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 | |
| 6000mAh Li - Polymer Battery | 3400mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.36 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy M31 is a bit better than the Xiaomi Mi 8, having a global score of 86.5 against 83.3. The Galaxy M31 is a newer phone than Xiaomi Mi 8, but it is a little heavier and somewhat thicker. These devices use Android operating system, but Galaxy M31 has a more recent 11 version while Xiaomi Mi 8 has Android 10 version, so it offers some extra features and performance optimizations.
The Xiaomi Mi 8 counts with a bit more powerful processor than Galaxy M31. They have the same RAM amount and a Octa-Core CPU. The Xiaomi Mi 8 counts with a little bit better looking display than Galaxy M31, because although it has a bit lower resolution of 1080 x 2248px, a just a little lower screen pixel density and a little smaller screen, it also counts with more display brightness.
The Galaxy M31 captures way better photographs and videos than Xiaomi Mi 8, and although they both have a same size diafragm aperture, the same 3840x2160 video quality and the same video frame rate, the Galaxy M31 also has a lot bigger sensor which offers a lot better image and video quality and a camera in the back with a lot higher 64 megapixels resolution.
The Xiaomi Mi 8 features a better memory capacity for applications and games than Samsung Galaxy M31, because although it has no slot for SD memory cards, it also counts with 256 GB internal memory capacity. Galaxy M31 has a really longer battery life than Xiaomi Mi 8, because it has a 76 percent larger battery capacity.
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