Compare phones
| Global Score | |
| 80.4 | 81.3 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie, 8.1 Oreo | Android 10 |
| 2018-04-20 | 2020-04-27 |
| 6.36 x 2.97 x 0.36 inches | 6.27 x 2.88 x 0.34 inches |
| 6.70 ounces | 6.53 ounces |
| Black, Blue and Gray | Prism Crush black, Prism Crush blue, Prism Crush red and Prism Crush white |
| -- | Plastic |
| Display / Screen | |
| 6 inches | 6.4 inches |
| 2160 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 402 pixels per inch | 411 pixels per inch |
| 550 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.5 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | MediaTek Helio P65 MT6768 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 630 GPU | Mali-G52 MC2 GPU |
| 9.63 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 12.00 MP + 20.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.34 inches (1/2.9") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 9.79 | 10.89 |
| 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 | |
| 4000mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| 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
The Samsung Galaxy A31 is a bit better than Xiaomi Black Shark, with an 81.3 score against 80.4. Both devices in this review come with Android OS, but Samsung Galaxy A31 has older 10 version and Xiaomi Black Shark has Android 9.0 Pie. Samsung Galaxy A31 is a a lot newer phone, and it is also a little bit thinner and just a little bit lighter than the Xiaomi Black Shark.
The Xiaomi Black Shark features a bit sharper display than Samsung Galaxy A31, although it has a quite lower screen pixels density, a quite lower 1080 x 2160 resolution and a little bit smaller display. The Xiaomi Black Shark has a little bit better hardware performance than Galaxy A31, and although they both have 8 cores, the Xiaomi Black Shark also has 4 GB more RAM.
The Galaxy A31 has more memory for applications and games than Xiaomi Black Shark, because although it has less internal storage capacity, it also counts with a SD memory card expansion slot that supports up to 512 GB. Samsung Galaxy A31 takes much clearer photos and videos than Xiaomi Black Shark, because although it has a smaller camera aperture which is not favorable for low-light captures and videos, and they both have the same video resolution and the same video frame rate, the Samsung Galaxy A31 also counts with a way higher resolution camera and a lot larger sensor capturing much higher quality photographs.
The Samsung Galaxy A31 features longer battery lifetime than Xiaomi Black Shark, because it has a 5000mAh battery size.
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