Compare phones
| Global Score | |
| 81.3 | 81.4 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 9.0 Pie |
| 2020-04-27 | 2019-04-15 |
| 6.27 x 2.88 x 0.34 inches | 5.81 x 2.78 x 0.29 inches |
| 6.53 ounces | 5.47 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | 16 777 216 |
| Plastic | -- |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | AMOLED |
| 411 pixels per inch | 430 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.7 |
| Performance | |
| MediaTek Helio P65 MT6768 chipset | Qualcomm Snapdragon 712 SDM712 chipset |
| Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G52 MC2 GPU | Adreno 616 GPU |
| 9.09 | 9.36 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 11.74 | 10.1 |
| Camera | |
| 48.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.89 | 11.66 |
| 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 | 3070mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.04 |
| 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 |
Comparison review
Xiaomi Mi 9 SE is slightly better than the Galaxy A31, having a general score of 81.4 against 81.3. Xiaomi Mi 9 SE is an older device than Galaxy A31, but Xiaomi was able to build it somewhat lighter and thinner. Both phones in this comparison have Android OS (operating system), but the Xiaomi Mi 9 SE has a more recent 9.0 Pie version while Galaxy A31 has Android 10.
The Xiaomi Mi 9 SE counts with a little bit better hardware performance than Samsung Galaxy A31, and although they both have the same number of cores, the Xiaomi Mi 9 SE also has more RAM. The Xiaomi Mi 9 SE has a bit better looking display than Galaxy A31, because although it has a bit worse resolution of 1080 x 2340px and a little bit smaller display, it also counts with a just a little higher screen pixels density.
The Xiaomi Mi 9 SE shoots slightly better videos and photos than Samsung Galaxy A31, and although they both have a same resolution camera and the same sensor size, the Xiaomi Mi 9 SE also has a bigger aperture and a much higher video resolution. Samsung Galaxy A31 counts with a better storage capacity to install games and applications than Xiaomi Mi 9 SE, because although it has 0 less internal storage capacity, it also counts with a SD card slot that holds a maximum of 512 GB.
Samsung Galaxy A31 features a much longer battery life than Xiaomi Mi 9 SE, because it has a 63 percent bigger battery capacity.
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