Compare phones
| Global Score | |
| 88.9 | 90.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11, 10 |
| 2019-09-24 | 2020-04-29 |
| 6.08 x 2.85 x 0.41 inches | 6.26 x 2.90 x 0.34 inches |
| 8.50 ounces | 6.60 ounces |
| Black | Prism cube black |
| Titanium | Aluminum and Plastic |
| -- | Scratch-Resistant Glass |
| -- | $ 339.00 |
| Display / Screen | |
| 7.9 inches | 6.5 inches |
| 2250 x 2088 pixels | 2400 x 1080 pixels |
| OLED | Super AMOLED |
| 389 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.2 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Samsung Exynos 980 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 640 GPU | Mali-G76 MP5 GPU |
| 9.81 | 9.27 |
| Storage | |
| 512 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 1000 GB) external memory slot |
| 17.6 | 15.38 |
| Camera | |
| 108.00 MP | 48.00 MP + 32.00 MP |
| f/1.70 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (480 fps) (HD) slow motion video |
| 10.56 | 11.55 |
| 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), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4050mAh Li - Ion Battery | 4500mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 6.32 |
| 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 5G has a score of 90.8, which is just a bit better than Xiaomi Mi Mix Alpha's general score of 88.9. These phones include Android OS, but Galaxy A51 5G has a newer 11 version and Xiaomi Mi Mix Alpha has Android 10 version. The Galaxy A51 5G is a lighter and somewhat thinner cellphone than the Xiaomi Mi Mix Alpha, although both were released with only 7 months difference.
Xiaomi Mi Mix Alpha has a bit sharper screen than Galaxy A51 5G, because although it has a little bit lower screen pixel density, it also counts with a higher resolution of 2088 x 2250px and a bigger display. Xiaomi Mi Mix Alpha features just a bit better processing power than Galaxy A51 5G, and although they both have a Octa-Core processing unit, the Xiaomi Mi Mix Alpha also has more RAM.
The Galaxy A51 5G counts with a bit better camera than Xiaomi Mi Mix Alpha, although it has a lower (4K) video quality, a much less mega pixels camera in the back, a tinier aperture which is not good for taking images in poorly lited situations and a lot smaller sensor. Xiaomi Mi Mix Alpha has a quite bigger memory capacity to install applications and games or saving photos and videos than Galaxy A51 5G, because although it has no external memory card slot, it also counts with more internal storage.
Samsung Galaxy A51 5G has a little better battery lifetime than Xiaomi Mi Mix Alpha, because it has an 11% more battery size.
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