Compare phones
| Global Score | |
| 88.3 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 10 |
| 2021-05-06 | 2020-06-29 |
| 6.45 x 3.01 x 0.41 inches | 6.61 x 3.02 x 0.32 inches |
| 7.41 ounces | 6.81 ounces |
| Mirror Black and Pale Grey | Black |
| Metal and Plastic | Plastic and Plastic |
| $ 499.00 | $ 194.00 |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| -- | IPS LCD |
| 393 pixels per inch | 270 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 870 SM8250-AC chipset | Mediatek Helio P35 chipset |
| Kryo 585, 64-bit, 7 nm (Octa-Core 3200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 650 GPU | PowerVR GE8320 GPU |
| 9.81 | 9.27 |
| 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 | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") 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 | 9.35 |
| 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 |
| 10.6 | 6.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Xiaomi Black Shark 4 has a general score of 88.3, which is much better than Samsung Galaxy A21's 76.1 global score. Both of these phones come with Android OS (operating system), but the Xiaomi Black Shark 4 has a newer 11 version while Samsung Galaxy A21 has Android 10 version, providing a couple nice extra features and increased performance. The Xiaomi Black Shark 4 is a newer device than Samsung Galaxy A21, although it is a little heavier and notably thicker.
Xiaomi Black Shark 4 counts with just a little better hardware performance than Galaxy A21, and although they both have 8 cpu cores, the Xiaomi Black Shark 4 also has a greater amount of RAM memory. Xiaomi Black Shark 4 features an incredibly better looking screen than Samsung Galaxy A21, because it has a much better resolution of 1080 x 2400, a higher pixel amount per inch of display and a quite bigger screen.
Xiaomi Black Shark 4 has a much better camera than Galaxy A21, and although they both have a F1.8 camera aperture, the Xiaomi Black Shark 4 also has a lot larger back camera sensor providing a way better image quality, a lot higher 3840x2160 (4K) video definition and a camera with lot more megapixels.
Xiaomi Black Shark 4 features a bit bigger memory capacity for games and applications than Galaxy A21, because although it has no external SD slot, it also counts with 128 GB internal memory capacity. The Xiaomi Black Shark 4 counts with a little better battery lifetime than Samsung Galaxy A21, because it has a 13 percent bigger battery capacity.
Although Xiaomi Black Shark 4 is a better device, it costs a lot more money than the Galaxy A21, and it doesn't have such a good price and quality relation as the Galaxy A21. So if you need that extra features and specs, you can buy the Xiaomi Black Shark 4, but if you don't you can save some money and get the Galaxy A21, giving up some features and specifications.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.