Compare phones
| Global Score | |
| 98.1 | 80.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | -- |
| 2021-01-29 | 2019-01-15 |
| 6.50 x 2.98 x 0.35 inches | 6.27 x 2.96 x 0.32 inches |
| 8.04 ounces | 6.56 ounces |
| Phantom black and Silver | Black, Blue and Red |
| Aluminum and Glass (Corning Gorilla Glass Victus) | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 966.00 | -- |
| Display / Screen | |
| 6.8 inches | 6.3 inches |
| 3200 x 1440 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | IPS LCD |
| 516 pixels per inch | 409 pixels per inch |
| 1500 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 12 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 512 GPU |
| 9.72 | 9.18 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 256 GB) external memory slot |
| 10.1 | 13.18 |
| Camera | |
| 108.00 MP + 40.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 24.00mm focal length | -- |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (120 fps) (Full HD) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | -- |
| 13.75 | 11.44 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.1 | Bluetooth 5.0 |
| GPS | GPS |
| 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
Galaxy S21 Ultra is a lot better than Xiaomi Redmi Note 7, having a general score of 98.1 against 80.3. The Galaxy S21 Ultra is a noticeably newer device than Xiaomi Redmi Note 7, but it is somewhat heavier and a bit thicker. Galaxy S21 Ultra counts with an incredibly better looking display than Xiaomi Redmi Note 7, because it has a higher resolution of 1440 x 3200px, a bit larger screen and a greater amount of pixels per screen inch.
The Xiaomi Redmi Note 7 features much more storage for games and applications than Samsung Galaxy S21 Ultra, and although they both have equal 128 GB internal storage capacity, the Xiaomi Redmi Note 7 also has a SD extension slot that admits up to 256 GB. The Samsung Galaxy S21 Ultra counts with a little better performance than Xiaomi Redmi Note 7, and although they both have the same number of cores, the Samsung Galaxy S21 Ultra also has a higher amount of RAM.
Galaxy S21 Ultra has a lot better camera than Xiaomi Redmi Note 7, and although they both have a F1.8 diafragm aperture, the Galaxy S21 Ultra also has a lot better 108 megapixels resolution camera in the back, a way larger back-facing camera sensor taking much higher quality photos and a way better 7680x4320 video definition.
Galaxy S21 Ultra counts with greater battery lifetime than Xiaomi Redmi Note 7, because it has a 25% larger battery size.
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