Compare phones
| Global Score | |
| 90.8 | 76.5 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | -- |
| 2020-04-29 | 2017-04-28 |
| 6.26 x 2.90 x 0.34 inches | 5.72 x 2.78 x 0.29 inches |
| 6.60 ounces | 5.93 ounces |
| Prism cube black | Black, Blue and White |
| Aluminum and Plastic | Glass and Metal |
| Scratch-Resistant Glass | -- |
| $ 339.00 | $ 421.00 |
| Display / Screen | |
| 6.5 inches | 5.2 inches |
| 2400 x 1080 pixels | 1920 x 1080 pixels (Full HD) |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 424 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.7 |
| Performance | |
| Samsung Exynos 980 chipset | Qualcomm Snapdragon 835 MSM8998 chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 280, 64-bit, 10 nm (Octa-Core 2457 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G76 MP5 GPU | Adreno 540 GPU |
| 9.27 | 9.45 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | No SD card slot |
| 15.38 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 12.00 MP + 8.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 27.00mm focal length |
| 0.5 inches (1/2") sensor | 0.34 inches (1/2.9") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (480 fps) (HD) slow motion video | 1280 x 720 (120 fps) (HD) slow motion video |
| 11.55 | 9.68 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | -- |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 3 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 3350mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 5.36 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| 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 5G has an overall score of 90.8, which is much better than Xiaomi Mi 6's global score of 76.5. Even though the Samsung Galaxy A51 5G is incredibly newer than the Xiaomi Mi 6, it's heavier and thicker. Xiaomi Mi 6 features a little more vivid display than Galaxy A51 5G, because although it has a much smaller display and a bit worse 1080 x 1920 pixels resolution, it also counts with a just a little better screen pixels density.
Xiaomi Mi 6 counts with just a bit better processing power than Galaxy A51 5G. Both of them have a Octa-Core processing unit and the same RAM amount. The Galaxy A51 5G shoots much better photographs and videos than Xiaomi Mi 6, because although it has a tinier aperture which is not good for taking pictures in low-light situations, and they both have the same video frame rates and the same (4K) video definition, the Galaxy A51 5G also counts with a lot larger sensor shooting way higher quality videos and photos and a back-facing camera with way more megapixels.
Galaxy A51 5G has a much bigger memory to store more games and applications than Xiaomi Mi 6, and although they both have the same internal storage capacity, the Galaxy A51 5G also has an external memory slot that admits up to 1000 GB. The Galaxy A51 5G features greater battery lifetime than Xiaomi Mi 6, because it has a 34% larger battery size.
Even being the best phone of the ones we compare here, Galaxy A51 5G is also by far the cheapest.
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