Compare phones
| Global Score | |
| 85.5 | 83.8 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | -- |
| 2019-12-27 | 2018-04-03 |
| 6.24 x 2.90 x 0.31 inches | 5.94 x 2.95 x 0.32 inches |
| 6.07 ounces | 6.67 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black and White |
| Plastic and Plastic | Aluminum and Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | $ 639.00 |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 2400 x 1080 pixels | 2160 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 402 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| 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 | 8 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 + 5.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm 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 | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.55 | 9.79 |
| 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 |
| -- | Wireless Charging |
| 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
Galaxy A51 has an overall score of 85.5, which is just a bit better than Xiaomi Mi Mix 2s's 83.8 global score. The Galaxy A51 is a newer device, and it's also a little bit thinner and a little lighter than the Xiaomi Mi Mix 2s. Xiaomi Mi Mix 2s counts with a screen that's very similar to the Galaxy A51 one, although the Xiaomi Mi Mix 2s has a just a little inferior quantity of pixels per display inch, a quite lower 1080 x 2160px resolution and a bit smaller screen.
Galaxy A51 has a little bit better storage capacity to install applications and games or saving photos and videos than Xiaomi Mi Mix 2s, because although it has only 128 GB internal storage capacity, it also counts with a SD card slot that admits a maximum of 512 GB. Xiaomi Mi Mix 2s has just a bit better hardware performance than Galaxy A51, and although they both have a Octa-Core processor, the Xiaomi Mi Mix 2s also has a greater amount of RAM memory.
The Samsung Galaxy A51 features longer battery duration than Xiaomi Mi Mix 2s, because it has 4000mAh of battery capacity instead of 3400mAh. The Samsung Galaxy A51 shoots much clearer pictures and videos than Xiaomi Mi Mix 2s, because although it has a smaller aperture which is not nice for low light captures and videos, and they both have the same 30 frames per second video frame rates and the same 3840x2160 (4K) video resolution, the Samsung Galaxy A51 also counts with a much bigger back camera sensor shooting way higher quality photos and videos and a lot more mega-pixels camera in the back.
The Samsung Galaxy A51 not only is the best phones in our current comparison, but it's also by far the cheapest one, which makes buying this phone an easy decision.
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