Compare phones
| Global Score | |
| 77.7 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 11, 10, 9.0 Pie |
| 2020-06-19 | 2019-07-24 |
| 6.44 x 2.96 x 0.35 inches | 6.04 x 2.83 x 0.33 inches |
| 6.77 ounces | 6.13 ounces |
| Black, Blue, Red and White | Blue, Gray and White |
| -- | Glass (Corning Gorilla Glass 5) and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6.1 inches |
| 1600 x 720 pixels | 1560 x 720 pixels |
| TFT | Super AMOLED |
| 270 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 7.3 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 665 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Mali-G76 GPU | Adreno 610 GPU |
| 9.09 | 9.09 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 9.84 | 13.18 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | 0.43 inches (1/2.3") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 10.78 | 11.44 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| 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 A3 is a little bit better than Galaxy A21s, getting a 79.2 score against 77.7. The Xiaomi Mi A3 design is a bit lighter and a bit thinner than the Galaxy A21s, even though it was released about 11 months before. Both of these phones use Android operating system, but Xiaomi Mi A3 has a newer 11 version while Galaxy A21s has Android 10.
The Xiaomi Mi A3 counts with a bit more vivid screen than Galaxy A21s, because although it has a quite smaller display and a little worse resolution of 720 x 1560 pixels, it also counts with a bit better pixel density. Xiaomi Mi A3 and Galaxy A21s both count with really similar processing units, and although the Xiaomi Mi A3 has a greater amount of RAM memory, they both have 8 cpu cores.
Xiaomi Mi A3 counts with a much better storage to store more games and applications than Galaxy A21s, because although it has a slot for an SD memory card that admits 256 GB smaller, it also counts with 96 GB more internal memory capacity. Samsung Galaxy A21s counts with better battery duration than Xiaomi Mi A3, because it has a 5000mAh battery size instead of 4030mAh.
The Xiaomi Mi A3 counts with a slightly better camera than Galaxy A21s, because although it has a smaller back camera sensor taking worse quality pictures and videos, and they both have a camera in the back with a 48 megapixels resolution, the Xiaomi Mi A3 also counts with a bigger aperture to take better low-light captures and a much higher 3840x2160 (4K) video quality.
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