Compare phones
| Global Score | |
| 98.1 | 82.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 10, 9.0 Pie |
| 2021-01-29 | 2019-06-17 |
| 6.50 x 2.98 x 0.35 inches | 6.17 x 2.93 x 0.35 inches |
| 8.04 ounces | 6.74 ounces |
| Phantom black and Silver | Carbon Black, Flame Red and Glacier Blue |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Metal and Metal |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.4 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 516 pixels per inch | 403 pixels per inch |
| 1500 cd/m2 brightness | 430 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 618 GPU |
| 9.72 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 108.00 MP + 40.00 MP | 48.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 13.75 | 11.66 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | 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 | FM Radio |
Comparison review
The Galaxy S21 Ultra has an overall score of 98.1, which is better than Xiaomi Mi 9T's 82.2 general score. Both phones we are comparing here have Android OS (Operating System), but the Galaxy S21 Ultra has the newer 11 version while Xiaomi Mi 9T has Android 10, so it gives some nice extra features. Galaxy S21 Ultra is a somewhat heavier device than the Xiaomi Mi 9T, but both of them have the same thickness.
Galaxy S21 Ultra features a sharper screen than Xiaomi Mi 9T, because it has a way brighter display, a better resolution of 1440 x 3200, a little bit bigger screen and a better count of pixels per screen inch. The Xiaomi Mi 9T features as much memory to store more apps and games as the Galaxy S21 Ultra one, they have exactly the same internal memory capacity.
The Galaxy S21 Ultra has a little faster processor than Xiaomi Mi 9T, and although they both have 8 cores, the Galaxy S21 Ultra also has a greater amount of RAM. The Galaxy S21 Ultra features a superior camera than Xiaomi Mi 9T, and although they both have a F1.8 aperture, the Galaxy S21 Ultra also has a lot bigger sensor shooting much better quality videos and pictures, a lot higher 108 mega pixels resolution camera in the back and a much higher 7680x4320 video definition.
The Samsung Galaxy S21 Ultra features improved battery life than Xiaomi Mi 9T, because it has a 25% larger battery capacity.
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