Compare phones
| Global Score | |
| 77.8 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 11 |
| 2022-03-15 | 2021-01-29 |
| 6.01 x 2.75 x 0.32 inches | 6.50 x 2.98 x 0.35 inches |
| 6.21 ounces | 8.04 ounces |
| Blue, Grey and Purple | Phantom black and Silver |
| Aluminum and Glass | Aluminum and Glass (Corning Gorilla Glass Victus) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 6.3 inches | 6.8 inches |
| 2400 x 1080 pixels | 3200 x 1440 pixels |
| AMOLED | Dynamic AMOLED |
| 418 pixels per inch | 516 pixels per inch |
| 1100 cd/m2 brightness | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.9 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 870 SM8250-AC (7 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 650 GPU | Adreno 660 GPU |
| 6.21 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 10.1 |
| Camera | |
| 50.00 MP + 32.00 MP | 108.00 MP + 40.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 50.00mm focal length | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| 7680 x 4320 (24 fps) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.88 | 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, Dual SIM | Nano SIM |
| 10.6 | 10.7 |
| Battery Life | |
| 4500mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.1 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| 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
The Samsung Galaxy S21 Ultra has a general score of 98.1, which is a lot better than Xiaomi 12X's score of 77.8. Despite being the best in this comparison review, the Samsung Galaxy S21 Ultra design is older, just a little thicker and heavier than Xiaomi 12X. These phones include the same Android 11 operating system.
The Galaxy S21 Ultra counts with a much more powerful processing unit than Xiaomi 12X, and although they both have the same number of cores, the Galaxy S21 Ultra also has 4 GB more RAM memory. The Samsung Galaxy S21 Ultra features a brighter screen than Xiaomi 12X, because it has a brighter display, a quite higher pixel density, a better resolution of 1440 x 3200px and a quite larger display.
Galaxy S21 Ultra and Xiaomi 12X both have very similar memory for apps and games, they have equal 128 GB internal storage. Samsung Galaxy S21 Ultra has a little longer battery performance than Xiaomi 12X, because it has a 5000mAh battery size against 4500mAh. The Galaxy S21 Ultra features a better camera than Xiaomi 12X, and although they both have the same video frame rates and the same 7680x4320 video resolution, the Galaxy S21 Ultra also has a much more MP camera and a larger camera aperture to capture better photos and video in low light situations.
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