Compare phones
| Global Score | |
| 89 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 11 | Android 10 |
| 2021-08-10 | 2020-06-19 |
| 6.40 x 2.97 x 0.31 inches | 6.44 x 2.96 x 0.35 inches |
| 7.94 ounces | 6.77 ounces |
| Ceramic Black, Ceramic White and Shadow Gray | Black, Blue, Red and White |
| Aluminum and Ceramic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.7 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 393 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 888+ SM8350-AC chipset | Samsung Exynos 850 chipset |
| Kryo 680 Prime, 64-bit, 5 nm (Octa-Core 3000 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 660 GPU | Mali-G76 GPU |
| 9.72 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 9.84 |
| Camera | |
| 108.00 MP + 20.00 MP | 48.00 MP + 13.00 MP |
| f/1.90 aperture | f/2.00 aperture |
| 24.00mm focal length | 26.00mm focal length |
| 0.75 inches (1/1.33") sensor | 0.5 inches (1/2") sensor |
| 7680 x 4320 (24 fps) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (480 fps) (Full HD) slow motion video | -- |
| 13.75 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4500mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| Wireless Charging | -- |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Xiaomi Mi Mix 4 is much better than the Galaxy A21s, with a general score of 89 against 77.7. These phones use Android OS (operating system), but Xiaomi Mi Mix 4 has the newer 11 version while Galaxy A21s has Android 10, so it provides lots of additional features. Xiaomi Mi Mix 4's design is newer and thinner, but heavier than the Galaxy A21s.
The Xiaomi Mi Mix 4 features a little faster CPU than Samsung Galaxy A21s, and although they both have 8 CPU cores, the Xiaomi Mi Mix 4 also has a larger amount of RAM. Xiaomi Mi Mix 4 features a sharper display than Galaxy A21s, because it has a quite larger screen, a greater display pixel density and a way higher resolution of 1080 x 2400.
The Xiaomi Mi Mix 4 has slightly more storage capacity to store more games and applications than Samsung Galaxy A21s, because although it has no external SD slot, it also counts with 128 GB internal memory capacity. Xiaomi Mi Mix 4 features a very superior camera than Galaxy A21s, because it has a way better video quality, a much bigger sensor, a back camera with a way better 108 MP resolution and a larger camera aperture for better low light images and videos.
Galaxy A21s features just a little better battery duration than Xiaomi Mi Mix 4, because it has an 11 percent larger battery size.
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