Compare phones
| Global Score | |
| 98.1 | 90.7 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 11 |
| 2021-01-29 | 2021-03-29 |
| 6.50 x 2.98 x 0.35 inches | 6.47 x 2.94 x 0.33 inches |
| 8.04 ounces | 8.25 ounces |
| Phantom black and Silver | Ceramic Black and Ceramic White |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.8 inches |
| 3200 x 1440 pixels | 3200 x 1440 pixels |
| Dynamic AMOLED | AMOLED |
| 516 pixels per inch | 516 pixels per inch |
| 1500 cd/m2 brightness | 1700 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 9.9 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 888 SM8350 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 12 GB RAM | 8 GB RAM |
| Adreno 660 GPU | Adreno 660 GPU |
| 9.72 | 9.63 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 108.00 MP + 40.00 MP | 50.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 24.00mm focal length | 24.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (1920 fps) (Full HD) slow motion video |
| 13.75 | 12.43 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 8.2 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.2 |
| 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 | -- |
Comparison review
Galaxy S21 Ultra has an overall score of 98.1, which is slightly better than the Xiaomi Mi 11 Ultra's general score of 90.7. Although the Galaxy S21 Ultra and the Xiaomi Mi 11 Ultra were released only 2 months apart, Galaxy S21 Ultra's construction is a little lighter but just a bit thicker. Both of these phones include the same Android 11 OS (Operating System).
The Xiaomi Mi 11 Ultra features a little sharper screen than Galaxy S21 Ultra, and although they both have the same 1440 x 3200px resolution, a screen of the same size and the same screen pixels density, the Xiaomi Mi 11 Ultra also has a bit more display brightness. Samsung Galaxy S21 Ultra features a bit faster CPU than Xiaomi Mi 11 Ultra, and although they both have 8 cores, the Samsung Galaxy S21 Ultra also has 4 GB more RAM memory.
Galaxy S21 Ultra captures much clearer photos and videos than Xiaomi Mi 11 Ultra, and although they both have the same 24 frames per second video frame rates and the same 7680x4320 video quality, the Galaxy S21 Ultra also has a much larger sensor taking more light and vivid colors, a back facing camera with much more MP and a bigger aperture.
Xiaomi Mi 11 Ultra has a lot bigger memory to install applications and games than Galaxy S21 Ultra, because it has 256 GB internal storage capacity. The Samsung Galaxy S21 Ultra and the Xiaomi Mi 11 Ultra feature extremely similar batteries.
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