Compare phones
| Global Score | |
| 11.67 | 9.06 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android |
| 2021-01-29 | 2018-06-08 |
| 6.50 x 2.98 x 0.35 inches | 5.80 x 2.88 x 0.30 inches |
| 8.04 ounces | 5.78 ounces |
| Phantom black and Silver | Black, Blue, Gold and Red |
| Aluminum and Glass (Corning Gorilla Glass Victus) | -- |
| Scratch-Resistant Glass | -- |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 5.9 inches |
| 3200 x 1440 pixels | 2244 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 516 pixels per inch | 422 pixels per inch |
| 1500 cd/m2 brightness | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 8.7 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 710 SDM710 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 360, 64-bit, 10 nm (Octa-Core 2200 MHz) processor |
| 12 GB RAM | 6 GB RAM |
| Adreno 660 GPU | Adreno 616 GPU |
| 9.72 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 7.7 |
| Camera | |
| 108.00 MP + 40.00 MP | 12.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | 0.39 inches (1/2.55") 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 | 9.79 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE (4G), HSPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.1 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3120mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 4.96 | 4.24 |
| 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, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy S21 Ultra has a score of 11.67, which is much better than Xiaomi Mi 8 SE's 9.06 global score. Galaxy S21 Ultra works with Android 11 operating system, while Xiaomi Mi 8 SE counts with Android operating system. The Galaxy S21 Ultra design is noticeably newer than the Xiaomi Mi 8 SE's, but it's somewhat thicker and way heavier.
Samsung Galaxy S21 Ultra features just a bit better hardware performance than Xiaomi Mi 8 SE, and although they both have 8 CPU cores, the Samsung Galaxy S21 Ultra also has a higher amount of RAM. The Galaxy S21 Ultra features a much better looking display than Xiaomi Mi 8 SE, because it has a little higher quantity of pixels per inch in the screen, a lot brighter screen, a better resolution of 1440 x 3200px and a larger screen.
Samsung Galaxy S21 Ultra features a much greater memory to store more games and applications than Xiaomi Mi 8 SE, because it has 64 GB more internal storage. The Galaxy S21 Ultra has better battery duration than Xiaomi Mi 8 SE, because it has a 5000mAh battery capacity. The Samsung Galaxy S21 Ultra counts with a greater camera than Xiaomi Mi 8 SE, because it has a lot better 7680x4320 video definition, a way bigger sensor taking lot higher quality videos and photographs, a larger camera aperture to capture better low light photography and videos and a camera in the back with a lot better 108 mega-pixels resolution.