Compare phones
| Global Score | |
| 82.9 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie | Android 11, 10 |
| 2019-10-20 | 2019-12-27 |
| 6.44 x 2.95 x 0.35 inches | 6.24 x 2.90 x 0.31 inches |
| 7.23 ounces | 6.07 ounces |
| Iceberg grey and Shadow black | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| AMOLED | Super AMOLED |
| 403 pixels per inch | 405 pixels per inch |
| 430 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Samsung Exynos 9611 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 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 640 GPU | Mali-G72 MP3 GPU |
| 9.72 | 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 | |
| 48.00 MP + 20.00 MP | 48.00 MP + 32.00 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.88 | 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 general score of 85.5, which is a bit better than the Xiaomi Black Shark 2 Pro's score of 82.9. The Galaxy A51 design is somewhat lighter and thinner than Xiaomi Black Shark 2 Pro, although both were only released with a couple of months difference. Both of these phones come with Android operating system, but the Galaxy A51 has older 11 version and Xiaomi Black Shark 2 Pro has Android 9.0 Pie version.
The Xiaomi Black Shark 2 Pro features a bit better CPU than Samsung Galaxy A51, and although they both have 8 processing cores, the Xiaomi Black Shark 2 Pro also has a greater amount of RAM. The Xiaomi Black Shark 2 Pro counts with a slightly better looking display than Galaxy A51, although it has a quite lower screen pixels density, a little smaller display and a quite lower resolution of 1080 x 2340.
The Xiaomi Black Shark 2 Pro shoots just a bit better pictures and videos than Galaxy A51, and although they both have the same (4K) video resolution, a 0.5 inches back camera sensor and a 48 megapixels back facing camera, the Xiaomi Black Shark 2 Pro also has faster video frame rates and a bigger diafragm aperture.
Samsung Galaxy A51 features a much bigger memory to install applications and games or saving photos and videos than Xiaomi Black Shark 2 Pro, and although they both have exactly the same internal storage capacity, the Samsung Galaxy A51 also has a SD memory slot that admits up to 512 GB. The Samsung Galaxy A51 and Xiaomi Black Shark 2 Pro have really similar batteries.
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