Compare phones
| Global Score | |
| 86.6 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 10 |
| 2020-05-08 | 2020-06-19 |
| 6.64 x 3.04 x 0.41 inches | 6.44 x 2.96 x 0.35 inches |
| 7.83 ounces | 6.77 ounces |
| Armor gray, Lightning black and Star silver | Black, Blue, Red and White |
| Aluminum and Aluminum | -- |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| OLED | TFT |
| 393 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 865 SM8250 chipset | Samsung Exynos 850 chipset |
| Kryo 585, 64-bit, 7 nm (Octa-Core 2840 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 650 GPU | Mali-G76 GPU |
| 9.63 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 64.00 MP + 20.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 12.43 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, 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 |
| 10.7 | 6.7 |
| Battery Life | |
| 4720mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.56 | 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, Gyroscope and Proximity Sensor |
Comparison review
Xiaomi Black Shark 3 has a general score of 86.6, which is better than Galaxy A21s's global score of 77.7. Even though Xiaomi Black Shark 3 is better than the Galaxy A21s, it must be noted that it is also thicker and somewhat heavier. These devices have the same Android 10 OS (Operating System), so both of them should provide you very similar operating system features.
Xiaomi Black Shark 3 has a much better looking screen than Samsung Galaxy A21s, because it has a little bit bigger display, a lot better resolution of 1080 x 2400 pixels and a greater pixels density. The Xiaomi Black Shark 3 features a bit more memory to store more games and applications than Galaxy A21s, because although it has no SD card slot, it also counts with 96 GB more internal memory capacity.
Xiaomi Black Shark 3 counts with just a little better performance than Samsung Galaxy A21s, and although they both have 8 cores, the Xiaomi Black Shark 3 also has a larger amount of RAM. Xiaomi Black Shark 3 captures better photographs and videos than Samsung Galaxy A21s, because it has a larger diafragm aperture to capture better low-light images and videos, a back-facing camera with lot more megapixels, a larger back camera sensor taking more light and vivid colors and a much better video definition.
Galaxy A21s has a bit superior battery duration than Xiaomi Black Shark 3, because it has a 6% bigger battery size.
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