Compare phones
| Global Score | |
| 72.5 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android | Android 11 |
| -- | 2021-01-29 |
| 5.81 x 2.81 x 0.33 inches | 6.50 x 2.98 x 0.35 inches |
| 5.15 ounces | 8.04 ounces |
| Black, Blue, Gray and Yellow | Phantom black and Silver |
| Metal | Aluminum and Glass (Corning Gorilla Glass Victus) |
| -- | Scratch-Resistant Glass |
| -- | $ 966.00 |
| Display / Screen | |
| 5.5 inches | 6.8 inches |
| 1440 x 720 pixels | 3200 x 1440 pixels |
| -- | Dynamic AMOLED |
| 293 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.4 | 9.8 |
| Performance | |
| MediaTek Helio P22 MT6762 chipset | Qualcomm Snapdragon 888 chipset |
| ARM Cortex-A53, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| IMG PowerVR GE8320 GPU | Adreno 660 GPU |
| 9.09 | 9.72 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 10.78 | 10.1 |
| Camera | |
| 12.00 MP + 5.00 MP | 108.00 MP + 40.00 MP |
| f/2.20 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| -- | 0.75 inches (1/1.33") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 8.8 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| -- | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Dual SIM | Nano SIM |
| 5.5 | 10.7 |
| Battery Life | |
| 3000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy S21 Ultra is way better than the Xiaomi Redmi 6, having a general score of 98.1 against 72.5. Even being the best in this review, Galaxy S21 Ultra is a a bit thicker and noticeably heavier cellphone than the Xiaomi Redmi 6. The Galaxy S21 Ultra comes with Android 11 operating system, while Xiaomi Redmi 6 counts with Android operating system.
The Galaxy S21 Ultra has a much better looking screen than Xiaomi Redmi 6, because it has a way higher 1440 x 3200px resolution, a lot better screen density and a bigger display. Xiaomi Redmi 6 counts with a little bit more storage for games and applications than Galaxy S21 Ultra, because although it has only 64 GB internal storage capacity, it also counts with a SD extension slot that supports a maximum of 256 GB.
Galaxy S21 Ultra features a bit superior processing unit than Xiaomi Redmi 6, and although they both have 8 CPU cores, the Galaxy S21 Ultra also has 8 GB more RAM. Galaxy S21 Ultra counts with a really longer battery lifetime than Xiaomi Redmi 6, because it has a 5000mAh battery size. The Samsung Galaxy S21 Ultra takes much clearer photographs and videos than Xiaomi Redmi 6, because it has a lot better resolution back camera, a way higher video definition and a bigger diafragm aperture to take better low-light images and video.
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