Compare phones
| Global Score | |
| 91.8 | 90.7 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | Android 11 |
| 2021-01-29 | 2021-03-29 |
| 5.97 x 2.80 x 0.31 inches | 6.47 x 2.94 x 0.33 inches |
| 6.03 ounces | 8.25 ounces |
| Gray, Phantom pink, Violet and White | Ceramic Black and Ceramic White |
| Aluminum and Plastic | Ceramic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| Dynamic AMOLED | AMOLED |
| 424 pixels per inch | 516 pixels per inch |
| 1300 cd/m2 brightness | 1700 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.2 | 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 |
| 8 GB RAM | 8 GB RAM |
| Adreno 660 GPU | Adreno 660 GPU |
| 9.63 | 9.63 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 12.00 MP + 10.00 MP | 50.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.90 aperture |
| 26.00mm focal length | 24.00mm focal length |
| 0.57 inches (1/1.76") 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 |
| 10.78 | 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 | |
| 4000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | 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
The Galaxy S21 has a global score of 91.8, which is a little bit better than Xiaomi Mi 11 Ultra's global score of 90.7. Although Galaxy S21 and the Xiaomi Mi 11 Ultra were only released 2 months apart, Galaxy S21 is noticeably lighter and just a little bit thinner. These phones use the same Android 11 OS, so both should provide very similar OS features.
The Xiaomi Mi 11 Ultra features a little more vivid screen than Samsung Galaxy S21, because it has a just a bit more pixels per screen inch, a quite bigger screen, a better 1440 x 3200 resolution and a brighter screen. The Xiaomi Mi 11 Ultra's CPU is very similar to the Galaxy S21 one, they have the same number of cores and a 8 GB RAM.
The Xiaomi Mi 11 Ultra counts with a better camera than Galaxy S21, because although it has a smaller camera aperture which is not good for low light images and video and a tinier camera sensor taking less light and washed colors, and they both have the same video frame rate and the same video resolution, the Xiaomi Mi 11 Ultra also counts with a back facing camera with a much better resolution.
The Xiaomi Mi 11 Ultra features a much better storage for games and applications than Samsung Galaxy S21, because it has more internal storage. Xiaomi Mi 11 Ultra features greater battery performance than Samsung Galaxy S21, because it has a 5000mAh battery capacity against 4000mAh.
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