Compare phones
| Global Score | |
| 90.8 | 88.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11 |
| 2020-04-29 | 2021-05-06 |
| 6.26 x 2.90 x 0.34 inches | 6.45 x 3.01 x 0.41 inches |
| 6.60 ounces | 7.41 ounces |
| Prism cube black | Mirror Black and Pale Grey |
| Aluminum and Plastic | Metal and Plastic |
| Scratch-Resistant Glass | -- |
| $ 339.00 | $ 499.00 |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | -- |
| 405 pixels per inch | 393 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.1 |
| Performance | |
| Samsung Exynos 980 chipset | Qualcomm Snapdragon 870 SM8250-AC chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 3200 MHz) processor |
| 6 GB RAM | 8 GB RAM |
| Mali-G76 MP5 GPU | Adreno 650 GPU |
| 9.27 | 9.81 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | No SD card slot |
| 15.38 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 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 |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.55 | 11.99 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM | Dual SIM |
| 10.7 | 10.6 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 6.32 |
| 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
Galaxy A51 5G is a little bit better than Xiaomi Black Shark 4, having a global score of 90.8 against 88.3. Galaxy A51 5G is an older cellphone than the Xiaomi Black Shark 4, but it's somewhat lighter and somewhat thinner anyway. Both phones in this comparison review include the same Android 11 operating system.
Xiaomi Black Shark 4 features a bit more powerful CPU than Galaxy A51 5G, and although they both have the same number of cores, the Xiaomi Black Shark 4 also has a greater amount of RAM memory. The Xiaomi Black Shark 4 has a brighter display than Galaxy A51 5G, because although it has a just a bit lower pixels density, and they both have the same resolution of 1080 x 2400 pixels, the Xiaomi Black Shark 4 also counts with a little bigger display.
Galaxy A51 5G counts with a very superior memory to store more games and applications than Xiaomi Black Shark 4, and although they both have the same 128 GB internal storage, the Galaxy A51 5G also has a SD memory slot that allows up to 1000 GB. Xiaomi Black Shark 4 has a little bit better camera than Galaxy A51 5G, and although they both have the same camera sensor size, the same (4K) video quality and a same resolution back-facing camera, the Xiaomi Black Shark 4 also has a bigger camera aperture and higher video frame rate.
Xiaomi Black Shark 4's battery lifetime is very similar to the battery performance in Samsung Galaxy A51 5G.
Despite of being the best phone in our current comparison, the Samsung Galaxy A51 5G is also by far the cheapest.
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