Compare phones
| Global Score | |
| 76.2 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 6.0 Marshmallow | Android 11 |
| 2016-11-04 | 2021-01-29 |
| 6.25 x 3.22 x 0.31 inches | 6.50 x 2.98 x 0.35 inches |
| 7.37 ounces | 8.04 ounces |
| Black and White | Phantom black and Silver |
| Ceramic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| $ 590.00 | $ 966.00 |
| Display / Screen | |
| 6.4 inches | 6.8 inches |
| 2040 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 361 pixels per inch | 516 pixels per inch |
| 500 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.3 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 821 MSM8996 Pro chipset | Qualcomm Snapdragon 888 chipset |
| Kryo, 64-bit (Quad-Core 2340 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Adreno 530 GPU | Adreno 660 GPU |
| 9 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 16.00 MP + 5.00 MP | 108.00 MP + 40.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| 0.33 inches (1/3.06") 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 (120 fps) (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 (4G) and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6 | 10.7 |
| Battery Life | |
| 4400mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.24 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | 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 |
Comparison review
The Galaxy S21 Ultra has a general score of 98.1, which is way better than Xiaomi Mi MIX's overall score of 76.2. Both devices in our current comparison include Android OS (operating system), but Galaxy S21 Ultra has the older 11 version and Xiaomi Mi MIX has Android 6.0 Marshmallow version. The Galaxy S21 Ultra is a newer device than Xiaomi Mi MIX, although it is somewhat thicker and just a little heavier.
The Samsung Galaxy S21 Ultra has a sharper screen than Xiaomi Mi MIX, because it has more pixels per inch in the display, a little bit larger screen, way more brightness and a much better resolution of 1440 x 3200px. Galaxy S21 Ultra features a bit better processor than Xiaomi Mi MIX, because it has a larger number of cores and a greater amount of RAM.
The Galaxy S21 Ultra's memory capacity for games and applications is just as good as the Xiaomi Mi MIX one, they have equal 128 GB internal storage capacity. Galaxy S21 Ultra has a little longer battery duration than Xiaomi Mi MIX, because it has 5000mAh of battery capacity. Samsung Galaxy S21 Ultra counts with a way better camera than Xiaomi Mi MIX, because it has a lot higher resolution back facing camera, a much bigger sensor taking way better quality pictures, a larger diafragm aperture and a way better video resolution.
The Galaxy S21 Ultra costs a lot more than Xiaomi Mi MIX, but it's still a good choice, as you can get a lot more features for that extra money.
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