Compare phones
| Global Score | |
| 11.67 | 9.02 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 9.0 Pie |
| 2021-01-29 | 2019-09-26 |
| 6.50 x 2.98 x 0.35 inches | 6.34 x 2.97 x 0.34 inches |
| 8.04 ounces | 7.05 ounces |
| Phantom black and Silver | Moonlight white, Neptune blue and Space black |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.3 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | IPS LCD |
| 516 pixels per inch | 409 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 665 SM6125 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 | 3 GB RAM |
| Adreno 660 GPU | Adreno 610 GPU |
| 9.72 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 8.88 |
| Camera | |
| 108.00 MP + 40.00 MP | 48.00 MP + 13.00 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 | 1280 x 720 (240 fps) (HD) slow motion video |
| 13.75 | 11.44 |
| 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 Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 4.88 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 4.2 |
| GPS | GPS |
| NFC | NFC |
| -- | Infra-red port |
| 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 Samsung Galaxy S21 Ultra is a lot better than the Xiaomi Redmi Note 8T, having a 11.67 score against 9.02. The Samsung Galaxy S21 Ultra is a newer phone than Xiaomi Redmi Note 8T, although it's just a little thicker and heavier. Both of these phones have Android OS (operating system), but Samsung Galaxy S21 Ultra has the older 11 version while Xiaomi Redmi Note 8T has Android 9.0 Pie version.
The Galaxy S21 Ultra has a much more vibrant display than Xiaomi Redmi Note 8T, because it has a bit larger display, a better resolution of 1440 x 3200 and a higher display pixel density. The Samsung Galaxy S21 Ultra counts with a greater memory for applications and games than Xiaomi Redmi Note 8T, because although it has no slot for SD memory cards, it also counts with more internal storage.
The Samsung Galaxy S21 Ultra features a bit faster processing unit than Xiaomi Redmi Note 8T, and although they both have 8 cpu cores, the Samsung Galaxy S21 Ultra also has a greater amount of RAM memory. The Galaxy S21 Ultra has a bit superior battery duration than Xiaomi Redmi Note 8T, because it has a 5000mAh battery capacity.
Galaxy S21 Ultra features a lot better camera than Xiaomi Redmi Note 8T, and although they both have a F1.8 camera aperture, the Galaxy S21 Ultra also has a lot more mega-pixels back facing camera, a lot larger back camera sensor taking way better quality photographs and videos and a lot higher 7680x4320 video quality.