Compare phones
| Global Score | |
| 11.67 | 9.31 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 10 |
| 2021-01-29 | 2021-01-18 |
| 6.50 x 2.98 x 0.35 inches | 6.39 x 3.04 x 0.38 inches |
| 8.04 ounces | 6.98 ounces |
| Phantom black and Silver | Carbon gray, Ocean green, Sunrise orange and Twilight blue |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.5 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | IPS LCD |
| 516 pixels per inch | 396 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 662 SM6115 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 610 GPU |
| 9.72 | 9.09 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 11.74 |
| Camera | |
| 108.00 MP + 40.00 MP | 48.00 MP + 8.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 13.75 | 10.78 |
| 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 | 6000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 6.16 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Samsung Galaxy S21 Ultra is much better than the Xiaomi Redmi 9T, having a general score of 11.67 against 9.31. Samsung Galaxy S21 Ultra's design is a little thinner but heavier than Xiaomi Redmi 9T, and both of them were only released 0 months apart. These devices include Android OS, but the Samsung Galaxy S21 Ultra has newer 11 version and Xiaomi Redmi 9T has Android 10.
The Galaxy S21 Ultra has a much sharper screen than Xiaomi Redmi 9T, because it has a better 1440 x 3200 resolution, a quite bigger display and a greater pixel number in each screen inch. Galaxy S21 Ultra counts with a little bit better performance than Xiaomi Redmi 9T, and although they both have 8 CPU cores, the Galaxy S21 Ultra also has a greater amount of RAM memory.
The Xiaomi Redmi 9T counts with more storage capacity for applications, games, photos and videos than Galaxy S21 Ultra, because although it has only 64 GB internal storage, it also counts with an external memory card slot that allows a maximum of 512 GB. Samsung Galaxy S21 Ultra shoots much better videos and photos than Xiaomi Redmi 9T, and although they both have the same camera aperture, the Samsung Galaxy S21 Ultra also has a much higher video definition, a lot better resolution back camera and a way larger sensor taking lot better quality videos and photographs.
The Xiaomi Redmi 9T has a superior battery lifetime than Galaxy S21 Ultra, because it has a 6000mAh battery size.