Compare phones
| Global Score | |
| 98.1 | 89.5 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | -- |
| 2021-01-29 | 2021-05-31 |
| 6.50 x 2.98 x 0.35 inches | 6.44 x 3.01 x 0.31 inches |
| 8.04 ounces | 6.91 ounces |
| Phantom black and Silver | Celestial Silver, Cosmic Black and Frosty White |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.7 inches |
| 3200 x 1440 pixels | 2400 x 1080 pixels |
| Dynamic AMOLED | AMOLED |
| 516 pixels per inch | 393 pixels per inch |
| 1500 cd/m2 brightness | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.8 | 9.1 |
| 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 | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 108.00 MP + 40.00 MP | 108.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | -- |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (30 fps) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 3840 x 2160 (60 fps) (4K) slow motion video |
| 13.75 | 12.87 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 10.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4520mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 6.4 |
| 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, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy S21 Ultra has a score of 98.1, which is a little bit better than the Xiaomi Mi 11i's global score of 89.5. The Galaxy S21 Ultra design is somewhat thicker and heavier than the Xiaomi Mi 11i. The Galaxy S21 Ultra counts with a slightly better display than Xiaomi Mi 11i, because it has a quite brighter display, a little bigger screen, a higher 1440 x 3200px resolution and a better display pixels density.
The Xiaomi Mi 11i features as much memory capacity for games and applications as the Galaxy S21 Ultra one, they have equal 128 GB internal storage. The Galaxy S21 Ultra features just a bit better performance than Xiaomi Mi 11i, and although they both have a Octa-Core processor, the Galaxy S21 Ultra also has 4 GB more RAM.
The Galaxy S21 Ultra counts with a bit longer battery performance than Xiaomi Mi 11i, because it has 5000mAh of battery capacity. Samsung Galaxy S21 Ultra counts with a little bit better camera than Xiaomi Mi 11i, although it has slower 24 fps video frame rate, they both have a camera with a 108 mega-pixels resolution, the same diafragm aperture and the same video definition.
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