Compare phones
| Global Score | |
| 88 | 83.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | -- |
| 2020-08-06 | 2019-03-06 |
| 6.27 x 2.93 x 0.37 inches | 6.20 x 2.94 x 0.30 inches |
| 7.16 ounces | 6.10 ounces |
| Mirage black and Mirage blue | Black, Blue and Purple |
| -- | Glass (Corning Gorilla Glass 5) and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.6 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 855 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 640 GPU |
| 9.36 | 9.63 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 12.1 | 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 6000mAh Battery | 3300mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 7.52 | 5.28 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| 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 Galaxy M31s has a general score of 88, which is a bit better than the Xiaomi Mi 9's general score of 83.2. The Galaxy M31s is a newer cellphone than the Xiaomi Mi 9, but it is somewhat heavier and thicker. Xiaomi Mi 9 has a little bit better hardware performance than Samsung Galaxy M31s. Both of them have 8 processing cores and a 6 GB RAM.
The Xiaomi Mi 9 features a little bit better display than Samsung Galaxy M31s, although it has a little smaller display, a bit lower 1080 x 2340 pixels resolution and a quite inferior pixel count per display inch. The Samsung Galaxy M31s counts with a much greater memory capacity for games and applications than Xiaomi Mi 9, and although they both have the same internal memory, the Samsung Galaxy M31s also has a SD memory card expansion slot that supports a maximum of 512 GB.
The Galaxy M31s counts with a really longer battery duration than Xiaomi Mi 9, because it has an 82% more battery size. The Xiaomi Mi 9 has a camera that is very similar to Galaxy M31s's camera, and although the Xiaomi Mi 9 has a much less mega pixels back-facing camera, a lower 3840x2160 video definition and a tinier sensor taking worse quality pictures and videos, they both have a F1.8 diafragm aperture.
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