Compare phones
| Global Score | |
| 77.7 | 78 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | -- |
| 2020-06-19 | 2018-07-27 |
| 6.44 x 2.96 x 0.35 inches | 6.25 x 2.97 x 0.29 inches |
| 6.77 ounces | 5.93 ounces |
| Black, Blue, Red and White | Black, Blue, Gold, Pink and Red |
| -- | Aluminum |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 1600 x 720 pixels | 2160 x 1080 pixels |
| TFT | IPS LCD |
| 270 pixels per inch | 402 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8.1 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 512 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 9.84 | 10.1 |
| Camera | |
| 48.00 MP + 13.00 MP | 12.00 MP + 20.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.34 inches (1/2.9") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (120 fps) (HD) slow motion video |
| 10.78 | 9.79 |
| 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 | 3010mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 4.96 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Xiaomi Mi A2 is a bit better than the Galaxy A21s, with a score of 78 against 77.7. Despite of the fact that Xiaomi Mi A2 is older than the Galaxy A21s, it's body is lighter and somewhat thinner. The Xiaomi Mi A2 has a bit faster processing unit than Galaxy A21s, and although they both have a Octa-Core processing unit, the Xiaomi Mi A2 also has a larger amount of RAM memory.
Xiaomi Mi A2 has a sharper display than Samsung Galaxy A21s, because although it has a quite smaller display, it also counts with a much higher resolution of 1080 x 2160px and a higher screen pixels density. The Samsung Galaxy A21s captures better videos and photos than Xiaomi Mi A2, because although it has a smaller diafragm aperture which is not favorable for taking images and video in low light environments, and they both have the same 30 fps video frame rates and the same 1920x1080 video resolution, the Samsung Galaxy A21s also counts with a way bigger camera sensor capturing more light and vivid colors and a camera with a way better 48 mega-pixels resolution.
The Xiaomi Mi A2 has slightly more storage to install applications and games than Galaxy A21s, because although it has no external SD slot, it also counts with 96 GB more internal storage. The Samsung Galaxy A21s has a very superior battery duration than Xiaomi Mi A2, because it has a 5000mAh battery size against 3010mAh.
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