Compare phones
| Global Score | |
| 77.7 | 82.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 10, 9.0 Pie |
| 2020-06-19 | 2019-03-28 |
| 6.44 x 2.96 x 0.35 inches | 6.44 x 2.95 x 0.35 inches |
| 6.77 ounces | 7.23 ounces |
| Black, Blue, Red and White | Black and Silver |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| TFT | AMOLED |
| 270 pixels per inch | 403 pixels per inch |
| -- | 430 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.4 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 855 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 8 GB RAM |
| Mali-G76 GPU | Adreno 640 GPU |
| 9.09 | 9.63 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 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 (120 fps) (HD) slow motion video |
| 10.78 | 11.55 |
| 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, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi Black Shark 2 has a global score of 82.3, which is just a bit better than the Galaxy A21s's overall score of 77.7. Both of these phones work with the same Android 10 operating system, so they should count with identical OS features. Xiaomi Black Shark 2 is a just a little heavier phone than the Galaxy A21s, but they are 0.35inches thick.
The Xiaomi Black Shark 2 has just a bit better performance than Galaxy A21s, and although they both have 8 CPU cores, the Xiaomi Black Shark 2 also has more RAM memory. The Xiaomi Black Shark 2 features a better display than Galaxy A21s, because although it has a quite smaller screen, it also counts with a lot better 1080 x 2340 resolution and a greater pixel amount per inch of display.
The Xiaomi Black Shark 2 captures slightly better pictures and videos than Galaxy A21s, and although they both have a 0.5 inches sensor and a camera in the back with a 48 mega-pixels, the Xiaomi Black Shark 2 also has a way better 3840x2160 (4K) video definition and a larger diafragm aperture for better captures and videos in low light environments.
Xiaomi Black Shark 2 counts with a little bit better storage for applications, games, photos and videos than Galaxy A21s, because although it has no SD card slot, it also counts with 128 GB internal storage. The Galaxy A21s has longer battery duration than Xiaomi Black Shark 2, because it has a 25% larger battery capacity.
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