Compare phones
| Global Score | |
| 85.5 | 83.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 10, 9.0 Pie, 8.0 Oreo |
| 2019-12-27 | 2018-06-05 |
| 6.24 x 2.90 x 0.31 inches | 6.10 x 2.94 x 0.30 inches |
| 6.07 ounces | 6.17 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black, Blue, Gold and White |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.2 inches |
| 2400 x 1080 pixels | 2248 x 1080 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 402 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.6 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 630 GPU |
| 9.27 | 9.63 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 13.3 |
| Camera | |
| 48.00 MP + 32.00 MP | 12.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 56.00mm focal length |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.55 | 9.9 |
| 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 | 3400mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.36 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Samsung Galaxy A51 has an overall score of 85.5, which is slightly better than Xiaomi Mi 8's 83.3 general score. Both of these phones work with Android OS (Operating System), but Samsung Galaxy A51 has the newer 11 version while Xiaomi Mi 8 has Android 10 version. The Samsung Galaxy A51 is a newer and a little lighter cellphone than Xiaomi Mi 8, but it's just a bit thicker.
The Xiaomi Mi 8 has a bit more vivid screen than Galaxy A51, although it has a just a bit less pixels per inch in the display, a little bit smaller display and a little worse resolution of 1080 x 2248 pixels. The Samsung Galaxy A51 counts with a bit bigger memory for applications and games than Xiaomi Mi 8, because although it has only 128 GB internal memory, it also counts with a slot for SD memory cards that holds up to 512 GB.
Xiaomi Mi 8 has a bit better hardware performance than Samsung Galaxy A51, and although they both have 8 processing cores, the Xiaomi Mi 8 also has 2 GB more RAM memory. The Samsung Galaxy A51 has a better camera than Xiaomi Mi 8, because although it has a tinier camera aperture, and they both have the same 30 frames per second video frame rate and the same 3840x2160 video resolution, the Samsung Galaxy A51 also counts with a lot larger back-facing camera sensor taking way higher quality videos and pictures and a lot higher resolution camera in the back.
The Galaxy A51 counts with improved battery life than Xiaomi Mi 8, because it has a 4000mAh battery capacity.
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