Compare phones
| Global Score | |
| 83.8 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 10 |
| 2018-11-01 | 2020-06-29 |
| 6.22 x 2.94 x 0.33 inches | 6.61 x 3.02 x 0.32 inches |
| 7.69 ounces | 6.81 ounces |
| Black, Blue and Green | Black |
| Aluminum and Ceramic | Plastic and Plastic |
| -- | $ 194.00 |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 270 pixels per inch |
| 600 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.6 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 845 SDM845 chipset | Mediatek Helio P35 chipset |
| Kryo 385, 64-bit, 10 nm (Octa-Core 2800 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 630 GPU | PowerVR GE8320 GPU |
| 9.63 | 9.27 |
| Storage | |
| 256 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 13.3 | 9.84 |
| Camera | |
| 12.20 MP + 24.00 MP | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.39 inches (1/2.55") sensor | 0.33 inches (1/3.06") sensor |
| 3840 x 2160 (60 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (960 fps) (Full HD) slow motion video | -- |
| 10.34 | 9.35 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3200mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 5.2 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Xiaomi Mi Mix 3 is better than Galaxy A21, with an 83.8 score against 76.1. The Xiaomi Mi Mix 3 is an older, just a little bit thicker and somewhat heavier cellphone than Galaxy A21. The Xiaomi Mi Mix 3 features a brighter screen than Samsung Galaxy A21, because although it has a little bit smaller screen, it also counts with a higher display pixel density and a lot higher resolution of 1080 x 2340.
Xiaomi Mi Mix 3 has a bit faster processor than Galaxy A21, and although they both have 8 cores, the Xiaomi Mi Mix 3 also has more RAM memory. The Xiaomi Mi Mix 3 features a superior camera than Galaxy A21, because although it has a camera with a lot lower 12.2 mega pixels resolution, and they both have a F1.8 aperture, the Xiaomi Mi Mix 3 also counts with a lot higher video quality and a larger camera sensor.
Xiaomi Mi Mix 3 features a way bigger memory capacity to install applications and games than Galaxy A21, because although it has no external SD slot, it also counts with more internal memory. Galaxy A21 features improved battery lifetime than Xiaomi Mi Mix 3, because it has a 4000mAh battery size against 3200mAh.
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