Compare phones
| Global Score | |
| 76.2 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 6.0 Marshmallow | Android 11, 10 |
| 2016-11-04 | 2019-12-27 |
| 6.25 x 3.22 x 0.31 inches | 6.24 x 2.90 x 0.31 inches |
| 7.37 ounces | 6.07 ounces |
| Black and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Ceramic | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 590.00 | $ 282.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2040 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 361 pixels per inch | 405 pixels per inch |
| 500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.3 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 821 MSM8996 Pro chipset | Samsung Exynos 9611 chipset |
| Kryo, 64-bit (Quad-Core 2340 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 530 GPU | Mali-G72 MP3 GPU |
| 9 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 16.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.79 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6 | 6.7 |
| Battery Life | |
| 4400mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.24 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A51 is much better than the Xiaomi Mi MIX, getting an 85.5 score against 76.2. Both of these phones include Android OS (Operating System), but Galaxy A51 has the previous 11 version while Xiaomi Mi MIX has Android 6.0 Marshmallow version. Galaxy A51's design has the same thickness than the Xiaomi Mi MIX, but it is lighter.
Galaxy A51 counts with just a little better performance than Xiaomi Mi MIX, and although they both have a 4 GB RAM memory, the Galaxy A51 also has a higher number of cores (although they are slower). Xiaomi Mi MIX counts with a bit more vivid screen than Galaxy A51, although it has a just a little inferior amount of pixels per inch in the display, a little bit smaller display and a little lower resolution of 1080 x 2040.
The Samsung Galaxy A51 captures much clearer photographs and videos than Xiaomi Mi MIX, and although they both have a F2 aperture, the same 3840x2160 (4K) video resolution and the same video frame rate, the Samsung Galaxy A51 also has a way larger camera sensor providing a much higher image quality and a back camera with a much better resolution.
The Samsung Galaxy A51 features a much bigger memory capacity for games and applications than Xiaomi Mi MIX, and although they both have exactly the same 128 GB internal storage, the Samsung Galaxy A51 also has a slot for an external memory card that supports up to 512 GB. Xiaomi Mi MIX features a bit superior battery performance than Galaxy A51, because it has 4400mAh of battery capacity instead of 4000mAh.
Despite of being the best phone of the ones we compare here, Samsung Galaxy A51 is also a bargain compared to others, which makes it a great choice.
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