Compare phones
| Global Score | |
| 88.3 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 10 |
| 2021-05-06 | 2020-06-19 |
| 6.45 x 3.01 x 0.41 inches | 6.44 x 2.96 x 0.35 inches |
| 7.41 ounces | 6.77 ounces |
| Mirror Black and Pale Grey | Black, Blue, Red and White |
| Metal and Plastic | -- |
| $ 499.00 | -- |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| -- | TFT |
| 393 pixels per inch | 270 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 870 SM8250-AC chipset | Samsung Exynos 850 chipset |
| Kryo 585, 64-bit, 7 nm (Octa-Core 3200 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 650 GPU | Mali-G76 GPU |
| 9.81 | 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 | |
| 48.00 MP + 20.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 11.99 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Dual SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
The Xiaomi Black Shark 4 is better than Galaxy A21s, getting an 88.3 score against 77.7. Both devices in this comparison review have Android OS (operating system), but the Xiaomi Black Shark 4 has newer 11 version and Galaxy A21s has Android 10. Even though Xiaomi Black Shark 4 is newer than the Galaxy A21s, it is somewhat thicker and just a bit heavier.
Xiaomi Black Shark 4 has a lot better looking display than Galaxy A21s, because it has more pixels per inch of screen, a lot better resolution of 1080 x 2400px and a bit larger screen. Xiaomi Black Shark 4 features a bit faster processor than Samsung Galaxy A21s, and although they both have a Octa-Core CPU, the Xiaomi Black Shark 4 also has more RAM memory.
The Xiaomi Black Shark 4 has a much better camera than Samsung Galaxy A21s, and although they both have a 48 mega pixels camera and a 0.5 inches back-facing camera sensor, the Xiaomi Black Shark 4 also has a way higher video definition and a larger camera aperture for better photos in low-light situations.
Xiaomi Black Shark 4 has a little bit more storage to install applications and games or saving photos and videos than Samsung Galaxy A21s, because although it has no SD memory card expansion slot, it also counts with 96 GB more internal memory capacity. Samsung Galaxy A21s features a bit better battery performance than Xiaomi Black Shark 4, because it has an 11 percent greater battery capacity.
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