Compare phones
| Global Score | |
| 77.7 | 83.8 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | -- |
| 2020-06-19 | 2018-11-01 |
| 6.44 x 2.96 x 0.35 inches | 6.22 x 2.94 x 0.33 inches |
| 6.77 ounces | 7.69 ounces |
| Black, Blue, Red and White | Black, Blue and Green |
| -- | Aluminum and Ceramic |
| Display / Screen | |
| 6.5 inches | 6.4 inches |
| 1600 x 720 pixels | 2340 x 1080 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 403 pixels per inch |
| -- | 600 cd/m2 brightness |
| No touch screen | No touch screen |
| 7.2 | 8.6 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 845 SDM845 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor |
| 3 GB RAM | 8 GB RAM |
| Mali-G76 GPU | Adreno 630 GPU |
| 9.09 | 9.63 |
| Storage | |
| 32 GB internal memory | 256 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 13.3 |
| Camera | |
| 48.00 MP + 13.00 MP | 12.20 MP + 24.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.39 inches (1/2.55") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (60 fps) (4K) video resolution |
| -- | 1920 x 1080 (960 fps) (Full HD) slow motion video |
| 10.78 | 10.34 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 3200mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 6.8 | 5.2 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Xiaomi Mi Mix 3 has an overall score of 83.8, which is a little bit better than the Galaxy A21s's general score of 77.7. Xiaomi Mi Mix 3's design is just a little bit thinner than the Galaxy A21s, but it is somewhat heavier and was released just a little further than a year before. The Xiaomi Mi Mix 3 features a little better processing power than Samsung Galaxy A21s, and although they both have the same number of cores, the Xiaomi Mi Mix 3 also has 5 GB more RAM.
The Xiaomi Mi Mix 3 has a brighter screen than Galaxy A21s, because although it has a quite smaller screen, it also counts with a much better 1080 x 2340 pixels resolution and more pixels per display inch. The Xiaomi Mi Mix 3 counts with a much greater storage for applications and games than Galaxy A21s, because although it has no external memory slot, it also counts with more internal storage.
The Galaxy A21s features a much better battery lifetime than Xiaomi Mi Mix 3, because it has a 56 percent more battery capacity. Galaxy A21s counts with just a bit better camera than Xiaomi Mi Mix 3, because although it has lower 30 fps video frame rates and a smaller aperture which is worse for capturing photos in poorly lited environments, and they both have the same video quality, the Galaxy A21s also counts with a back facing camera with lot more mega-pixels and a way larger back-facing camera sensor which provides a lot better photo and video quality.
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