Compare phones
| Global Score | |
| 91.8 | 80.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | -- |
| 2021-01-29 | 2019-01-15 |
| 5.97 x 2.80 x 0.31 inches | 6.27 x 2.96 x 0.32 inches |
| 6.03 ounces | 6.56 ounces |
| Gray, Phantom pink, Violet and White | Black, Blue and Red |
| Aluminum and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.3 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | IPS LCD |
| 424 pixels per inch | 409 pixels per inch |
| 1300 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 9.2 | 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 |
| 8 GB RAM | 4 GB RAM |
| Adreno 660 GPU | Adreno 512 GPU |
| 9.63 | 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 | |
| 12.00 MP + 10.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") 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 | -- |
| 10.78 | 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 | |
| 4000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | 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
The Galaxy S21 is much better than the Xiaomi Redmi Note 7, getting a global score of 91.8 against 80.3. The Galaxy S21 is a extremely newer phone, and it's also a little thinner and just a bit lighter than the Xiaomi Redmi Note 7. The Galaxy S21 counts with a much better display than Xiaomi Redmi Note 7, because although it has a quite smaller screen, it also counts with a slightly higher 1080 x 2400 pixels resolution and a little bit more pixels per inch in the display.
The Xiaomi Redmi Note 7 features a superior memory capacity for apps and games than Samsung Galaxy S21, and although they both have the same 128 GB internal storage capacity, the Xiaomi Redmi Note 7 also has a slot for SD memory cards that holds up to 256 GB. The Galaxy S21 features a bit better processor than Xiaomi Redmi Note 7, and although they both have 8 cores, the Galaxy S21 also has 4 GB more RAM memory.
Xiaomi Redmi Note 7's battery lifetime is very similar to the battery performance in Samsung Galaxy S21. The Xiaomi Redmi Note 7 has just a bit better camera than Samsung Galaxy S21, because although it has a tinier sensor providing a lower image quality, and they both have a same size aperture and the same video resolution, the Xiaomi Redmi Note 7 also counts with a way higher 48 megapixels resolution back facing camera and faster video frame rates.
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