Compare phones
| Global Score | |
| 91.8 | 83.8 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11 | -- |
| 2021-01-29 | 2018-11-01 |
| 5.97 x 2.80 x 0.31 inches | 6.22 x 2.94 x 0.33 inches |
| 6.03 ounces | 7.69 ounces |
| Gray, Phantom pink, Violet and White | Black, Blue and Green |
| Aluminum and Plastic | Aluminum and Ceramic |
| Scratch-Resistant Glass | -- |
| $ 722.00 | -- |
| Display / Screen | |
| 6.2 inches | 6.4 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Dynamic AMOLED | Super AMOLED |
| 424 pixels per inch | 403 pixels per inch |
| 1300 cd/m2 brightness | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 9.2 | 8.6 |
| Performance | |
| Qualcomm Snapdragon 888 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Kryo 680, 64-bit, 5 nm (Octa-Core 2840 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 8 GB RAM | 8 GB RAM |
| Adreno 660 GPU | Adreno 630 GPU |
| 9.63 | 9.63 |
| Storage | |
| 128 GB internal memory | 256 GB internal memory |
| No SD card slot | No SD card slot |
| 10.1 | 13.3 |
| Camera | |
| 12.00 MP + 10.00 MP | 12.20 MP + 24.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | 0.39 inches (1/2.55") sensor |
| 7680 x 4320 (24 fps) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| 1280 x 720 (960 fps) (HD) slow motion video | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 10.78 | 10.34 |
| 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 and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.3 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 3200mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | Wireless Charging |
| 5.92 | 5.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| 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 is a bit better than the Xiaomi Mi Mix 3, having a general score of 91.8 against 83.8. Galaxy S21 is a incredibly newer phone, and it is also a little thinner and much lighter than the Xiaomi Mi Mix 3. Xiaomi Mi Mix 3 features a processing unit that's very similar to the Samsung Galaxy S21 one, both of them have the same number of cores and the same RAM amount.
The Samsung Galaxy S21 has a little bit better screen than Xiaomi Mi Mix 3, because although it has a little smaller display, it also counts with a little greater pixel density, a really brighter screen and a bit higher 1080 x 2400px resolution. The Galaxy S21 shoots slightly better photographs and videos than Xiaomi Mi Mix 3, because although it has a back-facing camera with lesser MP, and they both have a F1.8 aperture, the Galaxy S21 also counts with a lot higher video quality and a lot larger camera sensor capturing more light and vivid colors.
Xiaomi Mi Mix 3 features much more storage for applications, games, photos and videos than Galaxy S21, because it has 128 GB more internal memory. Galaxy S21 has superior battery performance than Xiaomi Mi Mix 3, because it has a 25 percent bigger battery size.
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