Compare phones
| Global Score | |
| 76.7 | 91.8 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 11 |
| 2021-05-27 | 2021-01-29 |
| 6.23 x 2.96 x 0.33 inches | 5.97 x 2.80 x 0.31 inches |
| 6.70 ounces | 6.03 ounces |
| Moonlight White, Neptune Blue and Space Black, | Gray, Phantom pink, Violet and White |
| Glass and Plastic | Aluminum and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 722.00 |
| Display / Screen | |
| 6.3 inches | 6.2 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Dynamic AMOLED |
| 409 pixels per inch | 424 pixels per inch |
| -- | 1300 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 9.2 |
| Performance | |
| MediaTek Helio G85 MT6769Z chipset | Qualcomm Snapdragon 888 chipset |
| Cortex-A75, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor |
| 4 GB RAM | 8 GB RAM |
| Mali G52 MC2 GPU | Adreno 660 GPU |
| 9.09 | 9.63 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | No SD card slot |
| 10.02 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 12.00 MP + 10.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.57 inches (1/1.76") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 7680 x 4320 (24 fps) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (960 fps) (HD) slow motion video |
| 11 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM |
| 6.6 | 10.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| 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 Samsung Galaxy S21 has a general score of 91.8, which is much better than the Xiaomi Redmi Note 8 2021's 76.7 overall score. Both of these phones have the same Android 11 OS (Operating System), so both of them should offer identical OS features. Even when Samsung Galaxy S21 and Xiaomi Redmi Note 8 2021 were released with only 4 months difference, Samsung Galaxy S21 is somewhat lighter and just a little thinner.
Galaxy S21 has just a bit better performance than Xiaomi Redmi Note 8 2021, and although they both have the same number of cores, the Galaxy S21 also has 4 GB more RAM. The Galaxy S21 has a brighter screen than Xiaomi Redmi Note 8 2021, because although it has a bit smaller screen, it also counts with a just a little higher display density and a slightly better 1080 x 2400 resolution.
The Samsung Galaxy S21 counts with a slightly bigger memory capacity for applications, games, photos and videos than Xiaomi Redmi Note 8 2021, because although it has no slot for an SD memory card, it also counts with 64 GB more internal memory capacity. Xiaomi Redmi Note 8 2021 captures just a bit better photographs and videos than Galaxy S21, because although it has a tinier sensor shooting worse quality pictures and videos, and they both have a F1.8 aperture and the same video definition, the Xiaomi Redmi Note 8 2021 also counts with better video frame rate and a much more mega pixels back facing camera.
The Galaxy S21 and Xiaomi Redmi Note 8 2021 count with really similar battery durations.
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