Compare phones
| Global Score | |
| 80.4 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie, 8.1 Oreo | Android 11, 10 |
| 2018-04-20 | 2019-12-27 |
| 6.36 x 2.97 x 0.36 inches | 6.24 x 2.90 x 0.31 inches |
| 6.70 ounces | 6.07 ounces |
| Black, Blue and Gray | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2160 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 402 pixels per inch | 405 pixels per inch |
| 550 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.5 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Samsung Exynos 9611 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 4 GB RAM |
| Adreno 630 GPU | Mali-G72 MP3 GPU |
| 9.63 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 12.00 MP + 20.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.34 inches (1/2.9") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.79 | 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 | |
| 4000mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A51 has a score of 85.5, which is just a bit better than Xiaomi Black Shark's score of 80.4. The Galaxy A51 design is newer, just a little lighter and thinner than the Xiaomi Black Shark. These phones have Android OS, but Galaxy A51 has an older 11 version and Xiaomi Black Shark has Android 9.0 Pie version.
Xiaomi Black Shark features a little sharper display than Galaxy A51, although it has a bit lower 1080 x 2160px resolution, a little bit less pixels per inch of screen and a little bit smaller display. The Samsung Galaxy A51 counts with a lot bigger memory capacity to store more games and applications than Xiaomi Black Shark, and although they both have the same 128 GB internal storage, the Samsung Galaxy A51 also has a SD card slot that supports a maximum of 512 GB.
Xiaomi Black Shark counts with a little better processing power than Galaxy A51, and although they both have 8 cpu cores, the Xiaomi Black Shark also has a greater amount of RAM. The Galaxy A51's battery performance is very similar to the Xiaomi Black Shark one. The Samsung Galaxy A51 takes much better photos and videos than Xiaomi Black Shark, because although it has a smaller diafragm aperture which is not favorable for capturing photos and videos in low-light environments, and they both have the same video frame rate and the same video resolution, the Samsung Galaxy A51 also counts with a lot bigger back-facing camera sensor and a camera with a way better resolution.
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