Compare phones
| Global Score | |
| 88.9 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11 |
| 2019-09-24 | 2021-01-29 |
| 6.08 x 2.85 x 0.41 inches | 6.50 x 2.98 x 0.35 inches |
| 8.50 ounces | 8.04 ounces |
| Black | Phantom black and Silver |
| Titanium | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 7.9 inches | 6.8 inches |
| 2250 x 2088 pixels | 3200 x 1440 pixels |
| OLED | Dynamic AMOLED |
| 389 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.2 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 855+ SM8150-AC chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 485, 64-bit, 7 nm (Octa-Core 2960 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 12 GB RAM |
| Adreno 640 GPU | Adreno 660 GPU |
| 9.81 | 9.72 |
| Storage | |
| 512 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 17.6 | 10.1 |
| Camera | |
| 108.00 MP | 108.00 MP + 40.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 10.56 | 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), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4050mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| -- | 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
The Galaxy S21 Ultra has a global score of 98.1, which is much better than the Xiaomi Mi Mix Alpha's general score of 88.9. The Galaxy S21 Ultra body is newer, a little bit lighter and thinner than Xiaomi Mi Mix Alpha. These phones work with Android OS (operating system), but the Galaxy S21 Ultra has 11 version while Xiaomi Mi Mix Alpha has Android 10 version, providing some nice extra features.
The Xiaomi Mi Mix Alpha has just a little better performance than Galaxy S21 Ultra. They have 12 GB of RAM memory and 8 cpu cores. The Galaxy S21 Ultra has a better screen than Xiaomi Mi Mix Alpha, because although it has a little bit smaller display and a bit worse 1440 x 3200 pixels resolution, it also counts with a greater amount of pixels per inch in the screen.
Samsung Galaxy S21 Ultra features a greater camera than Xiaomi Mi Mix Alpha, because although it has a smaller diafragm aperture, and they both have a 0.75 inches sensor and a 108 mega pixels back-facing camera, the Samsung Galaxy S21 Ultra also counts with a way better video definition. Xiaomi Mi Mix Alpha has a much better memory capacity to install applications and games or saving photos and videos than Samsung Galaxy S21 Ultra, because it has 512 GB internal memory capacity.
The Samsung Galaxy S21 Ultra has superior battery life than Xiaomi Mi Mix Alpha, because it has a 5000mAh battery size against 4050mAh.
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