Compare phones
| Global Score | |
| 89.5 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11 |
| 2021-05-31 | 2021-01-29 |
| 6.44 x 3.01 x 0.31 inches | 6.50 x 2.98 x 0.35 inches |
| 6.91 ounces | 8.04 ounces |
| Celestial Silver, Cosmic Black and Frosty White | Phantom black and Silver |
| Glass (Corning Gorilla Glass 5) | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.7 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 393 pixels per inch | 516 pixels per inch |
| 1300 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.1 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 888 SM8350 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 660 GPU | Adreno 660 GPU |
| 9.63 | 9.72 |
| 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 + 20.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (30 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 3840 x 2160 (60 fps) (4K) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.87 | 13.75 |
| 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, Dual SIM | Nano SIM |
| 10.7 | 10.7 |
| Battery Life | |
| 4520mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.4 | 6.8 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.1 |
| 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 is just a bit better than the Xiaomi Mi 11i, having a global score of 98.1 against 89.5. Despite being the best in this review, the Galaxy S21 Ultra is a somewhat heavier and thicker cellphone than Xiaomi Mi 11i. The Samsung Galaxy S21 Ultra counts with a bit better CPU than Xiaomi Mi 11i, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has a greater amount of RAM memory.
The Galaxy S21 Ultra features just a bit better display than Xiaomi Mi 11i, because it has a little bit bigger display, a quite brighter screen, a better resolution of 1440 x 3200 pixels and more pixels per inch in the display. The Galaxy S21 Ultra has as much storage capacity to install games and applications as the Xiaomi Mi 11i, both have exactly the same 128 GB internal storage capacity.
The Galaxy S21 Ultra features just a bit longer battery performance than Xiaomi Mi 11i, because it has 5000mAh of battery capacity. Galaxy S21 Ultra captures a little bit better pictures and videos than Xiaomi Mi 11i, although it has worse 24 frames per second video frame rates, they both have a same size aperture, the same video definition and a back-facing camera with a 108 mega pixels.
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