Compare phones
| Global Score | |
| 75.6 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie | Android 11 |
| 2019-09-26 | 2021-01-29 |
| 6.34 x 2.97 x 0.34 inches | 6.50 x 2.98 x 0.35 inches |
| 7.05 ounces | 8.04 ounces |
| Moonlight white, Neptune blue and Space black | Phantom black and Silver |
| Glass (Corning Gorilla Glass 5) and Plastic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.3 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 409 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 665 SM6125 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 3 GB RAM | 12 GB RAM |
| Adreno 610 GPU | Adreno 660 GPU |
| 9.09 | 9.72 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 8.88 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") 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 (240 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.44 | 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 | |
| 4000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy S21 Ultra has a score of 98.1, which is a lot better than the Xiaomi Redmi Note 8T's general score of 75.6. Both of these phones use Android OS (Operating System), but the Galaxy S21 Ultra has an older 11 version and Xiaomi Redmi Note 8T has Android 9.0 Pie version. Galaxy S21 Ultra's body is newer than Xiaomi Redmi Note 8T's, but it is heavier and just a little thicker.
The Samsung Galaxy S21 Ultra counts with a much better looking display than Xiaomi Redmi Note 8T, because it has a little bit larger screen, a higher display density and a higher 1440 x 3200 resolution. Samsung Galaxy S21 Ultra counts with a little better performance than Xiaomi Redmi Note 8T, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has a larger amount of RAM.
The Galaxy S21 Ultra counts with a bigger storage to store more games and applications than Xiaomi Redmi Note 8T, because although it has no SD memory slot, it also counts with more internal memory. Galaxy S21 Ultra counts with a very superior camera than Xiaomi Redmi Note 8T, and although they both have the same camera aperture, the Galaxy S21 Ultra also has a way more MP camera, a lot higher 7680x4320 video definition and a lot bigger sensor capturing much better quality videos and photographs.
The Galaxy S21 Ultra counts with better battery duration than Xiaomi Redmi Note 8T, because it has 5000mAh of battery capacity.
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