Compare phones
| Global Score | |
| 87.7 | 88.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 11 |
| 2020-09-11 | 2021-05-06 |
| 6.45 x 3.00 x 0.37 inches | 6.45 x 3.01 x 0.41 inches |
| 7.51 ounces | 7.41 ounces |
| Black and White | Mirror Black and Pale Grey |
| Plastic and Plastic | Metal and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 499.00 |
| Display / Screen | |
| 6.7 inches | 6.7 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED Plus | -- |
| 385 pixels per inch | 393 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8 | 9.1 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | Qualcomm Snapdragon 870 SM8250-AC chipset |
| Kryo 470, 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 |
| Adreno 618 GPU | Adreno 650 GPU |
| 9.27 | 9.81 |
| 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 | |
| 64.00 MP + 32.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") 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 (960 fps) (HD) slow motion video |
| 11.88 | 11.99 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 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 | Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 7000mAh Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 8.32 | 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
The Xiaomi Black Shark 4 is just a bit better than the Galaxy M51, having an 88.3 score against 87.7. Both of these phones have Android OS (Operating System), but the Xiaomi Black Shark 4 has the newer 11 version while Galaxy M51 has Android 10. Even though the Xiaomi Black Shark 4 and Galaxy M51 were released only a couple of months apart, Xiaomi Black Shark 4's design is a bit thicker but just a bit lighter than Galaxy M51.
The Xiaomi Black Shark 4 counts with just a bit better performance than Galaxy M51, and although they both have a Octa-Core processor, the Xiaomi Black Shark 4 also has 2 GB more RAM. Xiaomi Black Shark 4 has a more vivid screen than Galaxy M51, and although they both have a screen of the same size, the Xiaomi Black Shark 4 also has a slightly higher 1080 x 2400 resolution and a just a little higher pixel amount per inch in the screen.
The Xiaomi Black Shark 4 features a slightly better camera than Samsung Galaxy M51, although it has a tinier sensor taking less light and duller colors, a back camera with much less mega-pixels and a lower video resolution, they both have a F1.8 aperture. Galaxy M51 counts with a much better storage capacity to install applications and games or saving photos and videos than Xiaomi Black Shark 4, and although they both have exactly the same 128 GB internal memory capacity, the Galaxy M51 also has a SD memory slot that admits up to 512 GB.
The Galaxy M51 counts with a much longer battery performance than Xiaomi Black Shark 4, because it has a 7000mAh battery size.
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