Compare phones
| Global Score | |
| 85.5 | 82.9 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 9.0 Pie |
| 2019-12-27 | 2019-10-20 |
| 6.24 x 2.90 x 0.31 inches | 6.44 x 2.95 x 0.35 inches |
| 6.07 ounces | 7.23 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Iceberg grey and Shadow black |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | -- |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 403 pixels per inch |
| -- | 430 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 855+ SM8150-AC chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 640 GPU |
| 9.27 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 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 (240 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.55 | 11.88 |
| 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 - Polymer Battery | 4000mAh Li - Ion 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 just a bit better than Xiaomi Black Shark 2 Pro's 82.9 general score. Both of these phones include Android OS (Operating System), but Galaxy A51 has an older 11 version and Xiaomi Black Shark 2 Pro has Android 9.0 Pie version. The Galaxy A51 is a somewhat lighter and thinner phone than Xiaomi Black Shark 2 Pro, although both of them were only released 2 months apart.
Xiaomi Black Shark 2 Pro has a slightly better looking screen than Samsung Galaxy A51, although it has a little bit smaller screen, a little lower 1080 x 2340px resolution and a bit lower display density. The Xiaomi Black Shark 2 Pro counts with a bit better processor than Galaxy A51, and although they both have a Octa-Core processor, the Xiaomi Black Shark 2 Pro also has 4 GB more RAM memory.
Xiaomi Black Shark 2 Pro counts with just a bit better camera than Samsung Galaxy A51, and although they both have a 48 mega pixels resolution back facing camera, a same size camera sensor and the same (4K) video resolution, the Xiaomi Black Shark 2 Pro also has a bigger camera aperture to capture better photography and videos in low light situations and faster 60 fps video frame rates.
Samsung Galaxy A51 features a much bigger memory for games and applications than Xiaomi Black Shark 2 Pro, and although they both have the same internal memory, the Samsung Galaxy A51 also has a SD memory slot that supports up to 512 GB. The Samsung Galaxy A51 and the Xiaomi Black Shark 2 Pro count with quite similar battery durations.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.