Compare phones
| Global Score | |
| 75 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie, 8.1 Oreo, 8.0 Oreo, 7.1 Nougat | Android 10 |
| 2017-09-12 | 2020-06-19 |
| 6.12 x 2.98 x 0.29 inches | 6.44 x 2.96 x 0.35 inches |
| 5.82 ounces | 6.77 ounces |
| Black, Gold and Pink | Black, Blue, Red and White |
| Metal | -- |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 1600 x 720 pixels |
| IPS LCD | TFT |
| 401 pixels per inch | 270 pixels per inch |
| 450 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Samsung Exynos 850 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 506 GPU | Mali-G76 GPU |
| 9.09 | 9.09 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.78 | 9.84 |
| Camera | |
| 12.00 MP + 5.00 MP | 48.00 MP + 13.00 MP |
| f/2.20 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| -- | 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 | -- |
| 9.35 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 3080mAh Li - Ion Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| FM Radio | -- |
Comparison review
Samsung Galaxy A21s has a score of 77.7, which is a bit better than Xiaomi Mi A1's 75 score. Although Samsung Galaxy A21s is newer than Xiaomi Mi A1, it is somewhat thicker and somewhat heavier. These phones include Android OS (Operating System), but the Samsung Galaxy A21s has an older 10 version while Xiaomi Mi A1 has Android 9.0 Pie version.
Galaxy A21s features a CPU that is very similar to the processor in Xiaomi Mi A1, and although the Galaxy A21s has a lower amount of RAM, they both have 8 cpu cores. Xiaomi Mi A1 has a brighter screen than Galaxy A21s, because although it has a little smaller display, it also counts with a better resolution of 1080 x 1920px and a greater pixel amount in each inch of display.
Xiaomi Mi A1 has a little bit better storage capacity for games and applications than Galaxy A21s, because although it has a slot for SD memory cards that allows 256 GB smaller, it also counts with 32 GB more internal storage capacity. Samsung Galaxy A21s shoots much better videos and photos than Xiaomi Mi A1, and although they both have the same 1920x1080 (Full HD) video resolution and the same video frame rate, the Samsung Galaxy A21s also has a bigger camera aperture for better low light images and videos and a lot better resolution camera.
The Galaxy A21s has a very superior battery performance than Xiaomi Mi A1, because it has a 5000mAh battery size against 3080mAh.
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