Compare phones
| Global Score | |
| 83.2 | 88 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11, 10 |
| 2019-03-06 | 2020-08-06 |
| 6.20 x 2.94 x 0.30 inches | 6.27 x 2.93 x 0.37 inches |
| 6.10 ounces | 7.16 ounces |
| Black, Blue and Purple | Mirage black and Mirage blue |
| Glass (Corning Gorilla Glass 5) and Metal | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 405 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 855 chipset | Samsung Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 640 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.36 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 48.00 MP + 20.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.59 inches (1/1.7") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 12.1 | 12.1 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3300mAh Battery | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.28 | 7.52 |
| 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
Galaxy M31s is a little bit better than Xiaomi Mi 9, having an 88 score against 83.2. The Galaxy M31s construction is newer than the Xiaomi Mi 9's, but it's somewhat heavier and somewhat thicker. Xiaomi Mi 9 features a little more vivid screen than Samsung Galaxy M31s, although it has a quite worse pixels number per screen inch, a quite smaller display and a little bit lower resolution of 1080 x 2340.
Samsung Galaxy M31s features a much greater memory capacity for applications, games, photos and videos than Xiaomi Mi 9, and although they both have exactly the same internal storage capacity, the Samsung Galaxy M31s also has a slot for an external memory card that admits up to 512 GB. The Xiaomi Mi 9 has just a little better processing power than Galaxy M31s. They have 8 cpu cores and 6 GB of RAM.
The Samsung Galaxy M31s features a really longer battery duration than Xiaomi Mi 9, because it has an 82 percent bigger battery capacity. The Galaxy M31s's camera is just as good as the Xiaomi Mi 9 one, because although the Galaxy M31s has slower 30 fps video frame rates, and they both have a F1.8 camera aperture and the same 3840x2160 video resolution, it also counts with a back camera with a lot better 64 MP resolution and a larger camera sensor shooting higher quality photos.
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