Compare phones
| Global Score | |
| 80.3 | 98.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11 |
| 2019-01-15 | 2021-01-29 |
| 6.27 x 2.96 x 0.32 inches | 6.50 x 2.98 x 0.35 inches |
| 6.56 ounces | 8.04 ounces |
| Black, Blue and Red | 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 | |
| 6.3 inches | 6.8 inches |
| 2340 x 1080 pixels | 3200 x 1440 pixels |
| IPS LCD | Dynamic AMOLED |
| 409 pixels per inch | 516 pixels per inch |
| -- | 1500 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.8 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Qualcomm Snapdragon 888 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 12 GB RAM |
| Adreno 512 GPU | Adreno 660 GPU |
| 9.18 | 9.72 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 13.18 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 108.00 MP + 40.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 24.00mm focal length |
| 0.5 inches (1/2") sensor | 0.75 inches (1/1.33") sensor |
| 1920 x 1080 (120 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 11.44 | 13.75 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 4000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| -- | 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 Galaxy S21 Ultra is much better than Xiaomi Redmi Note 7, getting a score of 98.1 against 80.3. Even though Galaxy S21 Ultra is newer than the Xiaomi Redmi Note 7, it's a little thicker and somewhat heavier. The Samsung Galaxy S21 Ultra counts with an incredibly better looking display than Xiaomi Redmi Note 7, because it has a bit bigger display, a higher screen pixel density and a better resolution of 1440 x 3200.
The Galaxy S21 Ultra has just a bit better hardware performance than Xiaomi Redmi Note 7, and although they both have the same number of cores, the Galaxy S21 Ultra also has a larger amount of RAM. Xiaomi Redmi Note 7 has a much greater storage capacity for games and applications than Galaxy S21 Ultra, and although they both have exactly the same 128 GB internal memory capacity, the Xiaomi Redmi Note 7 also has a SD memory card expansion slot that holds up to 256 GB.
Samsung Galaxy S21 Ultra shoots much clearer photos and videos than Xiaomi Redmi Note 7, and although they both have the same aperture, the Samsung Galaxy S21 Ultra also has a way better 7680x4320 video quality, a lot bigger camera sensor which provides a lot higher image and video quality and a way better resolution camera in the back.
Galaxy S21 Ultra features improved battery lifetime than Xiaomi Redmi Note 7, because it has 5000mAh of battery capacity.
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