Compare phones
| Global Score | |
| 81 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 12 | Android 11 |
| -- | 2021-01-29 |
| -- | 6.50 x 2.98 x 0.35 inches |
| -- | 8.04 ounces |
| Black and White | Phantom black and Silver |
| Aluminum and Ceramic | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.7 inches | 6.8 inches |
| 3200 x 1440 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 524 pixels per inch | 516 pixels per inch |
| 1500 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.7 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset | Qualcomm Snapdragon 888 chipset |
| processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 8 GB RAM | 12 GB RAM |
| Adreno 730 GPU | Adreno 660 GPU |
| 6.21 | 9.72 |
| Storage | |
| 256 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 13.3 | 10.1 |
| Camera | |
| 50.00 MP + 20.00 MP | 108.00 MP + 40.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 24.00mm focal length | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (1920 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 12.32 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 4800mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 6.64 | 6.8 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy S21 Ultra has an overall score of 98.1, which is way better than Xiaomi 12S Ultra's 81 overall score. These phones work with Android operating system, but the Galaxy S21 Ultra has older 11 version and Xiaomi 12S Ultra has Android 12 version. The Galaxy S21 Ultra features a much greater hardware performance than Xiaomi 12S Ultra, and although they both have 8 CPU cores, the Galaxy S21 Ultra also has 4 GB more RAM.
The Galaxy S21 Ultra features a bit more vivid display than Xiaomi 12S Ultra, because although it has a just a little lower pixels quantity in each inch of screen, and they both have the same 1440 x 3200 pixels resolution and the same brightness, the Galaxy S21 Ultra also counts with a little larger display.
Galaxy S21 Ultra features a superior camera than Xiaomi 12S Ultra, and although they both have the same 7680x4320 video definition and the same 24 fps video frame rates, the Galaxy S21 Ultra also has a lot better resolution back facing camera, a bigger camera aperture for better low-light photos and video and a much larger camera sensor providing a much better image quality.
The Xiaomi 12S Ultra features a very superior memory capacity to store more games and applications than Samsung Galaxy S21 Ultra, because it has more internal memory capacity. Galaxy S21 Ultra counts with a bit longer battery performance than Xiaomi 12S Ultra, because it has a 4 percent bigger battery size.
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