Compare phones
| Global Score | |
| 78 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 10 |
| 2018-07-27 | 2020-06-19 |
| 6.25 x 2.97 x 0.29 inches | 6.44 x 2.96 x 0.35 inches |
| 5.93 ounces | 6.77 ounces |
| Black, Blue, Gold, Pink and Red | Black, Blue, Red and White |
| Aluminum | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2160 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | TFT |
| 402 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Samsung Exynos 850 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 3 GB RAM |
| Adreno 512 GPU | Mali-G76 GPU |
| 9.27 | 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 | |
| 12.00 MP + 20.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.34 inches (1/2.9") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 9.79 | 10.78 |
| 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, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3010mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 4.96 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | -- |
Comparison review
Xiaomi Mi A2 is a little bit better than the Samsung Galaxy A21s, getting a overall score of 78 against 77.7. The Xiaomi Mi A2 is an older phone than Samsung Galaxy A21s, but it is lighter and somewhat thinner anyway. Xiaomi Mi A2 features a little bit better hardware performance than Galaxy A21s, and although they both have 8 cpu cores, the Xiaomi Mi A2 also has more RAM memory.
Xiaomi Mi A2 has a brighter display than Samsung Galaxy A21s, because although it has a little smaller display, it also counts with a much better 1080 x 2160 resolution and a better display pixel density. Xiaomi Mi A2 features a slightly better memory capacity for applications and games than Samsung Galaxy A21s, because although it has no external memory card slot, it also counts with 128 GB internal storage.
Galaxy A21s counts with a superior battery life than Xiaomi Mi A2, because it has a 66% more battery capacity. Galaxy A21s shoots much better videos and photos than Xiaomi Mi A2, because although it has a tinier diafragm aperture, and they both have the same video frame rates and the same 1920x1080 (Full HD) video definition, the Galaxy A21s also counts with a much larger sensor providing a lot better image quality and a back camera with a lot higher 48 mega pixels resolution.
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