Compare phones
| Global Score | |
| 88.3 | 90.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 11, 10 |
| 2021-05-06 | 2020-04-29 |
| 6.45 x 3.01 x 0.41 inches | 6.26 x 2.90 x 0.34 inches |
| 7.41 ounces | 6.60 ounces |
| Mirror Black and Pale Grey | Prism cube black |
| Metal and Plastic | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| $ 499.00 | $ 339.00 |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| -- | Super AMOLED |
| 393 pixels per inch | 405 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 870 SM8250-AC chipset | Samsung Exynos 980 chipset |
| Kryo 585, 64-bit, 7 nm (Octa-Core 3200 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 8 GB RAM | 6 GB RAM |
| Adreno 650 GPU | Mali-G76 MP5 GPU |
| 9.81 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 1000 GB) external memory slot |
| 10.1 | 15.38 |
| 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 (960 fps) (HD) slow motion video | 1280 x 720 (480 fps) (HD) slow motion video |
| 11.99 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Dual SIM | Nano SIM |
| 10.6 | 10.7 |
| 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 the Xiaomi Black Shark 4, with a general score of 90.8 against 88.3. Both phones in our current comparison come with the same Android 11 OS (operating system), so they should provide the user the same OS features. The Galaxy A51 5G is an older phone than the Xiaomi Black Shark 4, but Samsung was able to build it somewhat lighter and thinner.
Xiaomi Black Shark 4 features a sharper display than Galaxy A51 5G, because although it has a just a little lower display pixel density, and they both have an equal resolution of 1080 x 2400, the Xiaomi Black Shark 4 also counts with a bit larger display. The Xiaomi Black Shark 4 features a little faster CPU than Samsung Galaxy A51 5G, and although they both have 8 CPU cores, the Xiaomi Black Shark 4 also has a larger amount of RAM.
Xiaomi Black Shark 4 features a bit better camera than Galaxy A51 5G, and although they both have the same (4K) video definition, the same camera sensor size and a 48 MP back camera, the Xiaomi Black Shark 4 also has faster video frame rate and a bigger camera aperture to capture better photos and videos in low light situations.
The Samsung Galaxy A51 5G has a very superior storage capacity to store more games and applications than Xiaomi Black Shark 4, and although they both have the same 128 GB internal storage capacity, the Samsung Galaxy A51 5G also has an external memory slot that admits up to 1000 GB. The Galaxy A51 5G has a battery duration that is very similar to the battery lifetime in Xiaomi Black Shark 4.
Even being the best phone of the ones we are comparing here, Galaxy A51 5G is also a lot cheaper, which makes it an easy decision.
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