Compare phones
| Global Score | |
| 85.5 | 89 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11 |
| 2019-12-27 | 2021-08-10 |
| 6.24 x 2.90 x 0.31 inches | 6.40 x 2.97 x 0.31 inches |
| 6.07 ounces | 7.94 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Ceramic Black, Ceramic White and Shadow Gray |
| Plastic and Plastic | Aluminum and Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 2400 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | AMOLED |
| 405 pixels per inch | 393 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| Samsung Exynos 9611 chipset | Qualcomm Snapdragon 888+ SM8350-AC chipset |
| ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 3000 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali-G72 MP3 GPU | Adreno 660 GPU |
| 9.27 | 9.72 |
| 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 | 108.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.90 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1920 x 1080 (480 fps) (Full HD) slow motion video |
| 11.55 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.6 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4500mAh Li - Ion Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.2 |
| 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
Xiaomi Mi Mix 4 has an overall score of 89, which is a little bit better than Samsung Galaxy A51's 85.5 global score. These phones include the same Android 11 OS (operating system). Xiaomi Mi Mix 4's body has the same thickness than Samsung Galaxy A51, but it is notably heavier. The Xiaomi Mi Mix 4 counts with just a little better performance than Galaxy A51, and although they both have a Octa-Core processing unit, the Xiaomi Mi Mix 4 also has 4 GB more RAM.
Xiaomi Mi Mix 4 has a display that is just as good as Galaxy A51's display, because although the Xiaomi Mi Mix 4 has a just a bit lower display pixel density, and they both have an equal resolution of 1080 x 2400 pixels, it also counts with a bit larger screen. The Xiaomi Mi Mix 4 shoots much clearer photographs and videos than Galaxy A51, because it has a much bigger back-facing camera sensor providing a much better image quality, a back-facing camera with much more MP, a bigger aperture to capture better photos in low-light environments and a way higher 7680x4320 video definition.
Samsung Galaxy A51 features much more memory capacity to store more apps and games than Xiaomi Mi Mix 4, and although they both have exactly the same internal storage capacity, the Samsung Galaxy A51 also has an external SD slot that allows up to 512 GB. The Xiaomi Mi Mix 4 features just a bit better battery lifetime than Galaxy A51, because it has a 4500mAh battery size instead of 4000mAh.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.