Compare phones
| Global Score | |
| 81.3 | 80.4 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 9.0 Pie, 8.1 Oreo |
| 2020-04-27 | 2018-04-20 |
| 6.27 x 2.88 x 0.34 inches | 6.36 x 2.97 x 0.36 inches |
| 6.53 ounces | 6.70 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white | Black, Blue and Gray |
| Plastic | -- |
| Display / Screen | |
| 6.4 inches | 6 inches |
| 2400 x 1080 pixels | 2160 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 411 pixels per inch | 402 pixels per inch |
| -- | 550 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.5 |
| 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 | 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 | 12.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.34 inches (1/2.9") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 10.89 | 9.79 |
| 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 | |
| 5000mAh Li - Polymer Battery | 4000mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| 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
Galaxy A31 has an overall score of 81.3, which is slightly better than Xiaomi Black Shark's general score of 80.4. Both phones we compare here work with Android OS, but the Galaxy A31 has the previous 10 version and Xiaomi Black Shark has Android 9.0 Pie version. The Galaxy A31 is a much newer cellphone, and it is also just a little bit lighter and just a little bit thinner than Xiaomi Black Shark.
The Xiaomi Black Shark counts with a little bit better performance than Samsung Galaxy A31, and although they both have 8 CPU cores, the Xiaomi Black Shark also has more RAM memory. Xiaomi Black Shark features a bit more vivid display than Galaxy A31, although it has a bit inferior pixels amount per display inch, a quite lower 1080 x 2160 resolution and a little bit smaller display.
Samsung Galaxy A31 takes much clearer photographs and videos than Xiaomi Black Shark, because although it has a smaller diafragm aperture, and they both have the same 30 frames per second video frame rates and the same 1920x1080 video quality, the Samsung Galaxy A31 also counts with a back-facing camera with a lot better 48 mega pixels resolution and a much larger back-facing camera sensor taking lot higher quality videos and pictures.
The Samsung Galaxy A31 has a better memory to store more apps and games than Xiaomi Black Shark, because although it has 0 less internal memory capacity, it also counts with an external memory card slot that admits up to 512 GB. The Samsung Galaxy A31 counts with improved battery lifetime than Xiaomi Black Shark, because it has a 25 percent greater battery size.
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