Compare phones
| Global Score | |
| 85.5 | 76.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 6.0 Marshmallow |
| 2019-12-27 | 2016-11-04 |
| 6.24 x 2.90 x 0.31 inches | 6.25 x 3.22 x 0.31 inches |
| 6.07 ounces | 7.37 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black and White |
| Plastic and Plastic | Ceramic |
| Scratch-Resistant Glass | -- |
| $ 282.00 | $ 590.00 |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 2400 x 1080 pixels | 2040 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 361 pixels per inch |
| -- | 500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.3 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 821 MSM8996 Pro chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo, 64-bit (Quad-Core 2340 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 530 GPU |
| 9.27 | 9 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 48.00 MP + 32.00 MP | 16.00 MP + 5.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") 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 (120 fps) (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 (4G) and HSPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4400mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.24 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 4.2 |
| 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
Samsung Galaxy A51 is better than Xiaomi Mi MIX, getting an 85.5 score against 76.2. The Samsung Galaxy A51 is a lighter cellphone than Xiaomi Mi MIX, but they have the same thickness. These phones include Android OS (operating system), but the Samsung Galaxy A51 has the previous 11 version while Xiaomi Mi MIX has Android 6.0 Marshmallow.
The Galaxy A51 features a bit more powerful processing unit than Xiaomi Mi MIX, and although they both have a 4 GB RAM, the Galaxy A51 also has 4 more cores. Xiaomi Mi MIX has a little bit better screen than Galaxy A51, although it has a quite lower resolution of 1080 x 2040, a little bit smaller display and a just a bit lower pixels density.
Galaxy A51 has a way bigger memory capacity to install applications and games or saving photos and videos than Xiaomi Mi MIX, and although they both have exactly the same 128 GB internal storage capacity, the Galaxy A51 also has a slot for external memory cards that admits up to 512 GB. Galaxy A51 shoots much clearer photographs and videos than Xiaomi Mi MIX, and although they both have the same 30 fps video frame rates, the same (4K) video resolution and a F2 diafragm aperture, the Galaxy A51 also has a lot bigger camera sensor capturing more light and vivid colors and a back-facing camera with much more MP.
The Xiaomi Mi MIX has a bit better battery performance than Galaxy A51, because it has 4400mAh of battery capacity against 4000mAh.
Samsung Galaxy A51 is not only the best phones of the ones in this comparison, but it's also by far the cheapest one.
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