| Global Score | |
| 83.8 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11 |
| 2018-04-03 | 2021-01-29 |
| 5.94 x 2.95 x 0.32 inches | 6.50 x 2.98 x 0.35 inches |
| 6.67 ounces | 8.04 ounces |
| Black and White | Phantom black and Silver |
| Aluminum and Ceramic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 639.00 | $ 966.00 |
| Display / Screen | |
| 6 inches | 6.8 inches |
| 2160 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 402 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 630 GPU | Adreno 660 GPU |
| 9.63 | 9.72 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 12.00 MP + 5.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| 0.39 inches (1/2.55") sensor | 0.75 inches (1/1.33") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.79 | 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 | |
| 3400mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.36 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy S21 Ultra is better than the Xiaomi Mi Mix 2s, with a 98.1 score against 83.8. The Samsung Galaxy S21 Ultra body is newer than Xiaomi Mi Mix 2s's, but it is somewhat heavier and a bit thicker. The Galaxy S21 Ultra counts with a much more vibrant screen than Xiaomi Mi Mix 2s, because it has a higher amount of pixels per inch in the screen, a better 1440 x 3200 resolution and a quite bigger screen.
The Xiaomi Mi Mix 2s has a superior memory for apps and games than Galaxy S21 Ultra, because it has 256 GB internal storage capacity. Samsung Galaxy S21 Ultra has a bit superior processing unit than Xiaomi Mi Mix 2s, and although they both have 8 cores, the Samsung Galaxy S21 Ultra also has a higher amount of RAM memory.
Samsung Galaxy S21 Ultra shoots a lot better photographs and videos than Xiaomi Mi Mix 2s, and although they both have a same size aperture, the Samsung Galaxy S21 Ultra also has a much better video quality, a way larger back camera sensor taking lot better quality photos and videos and a way more MP back-facing camera.
Galaxy S21 Ultra has a really longer battery lifetime than Xiaomi Mi Mix 2s, because it has a 47% bigger battery capacity.
Galaxy S21 Ultra costs a lot more money than the Xiaomi Mi Mix 2s, but you can get a better phone for that extra dollars.
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