Compare phones
| Global Score | |
| 72.9 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 12 | Android 10 |
| -- | 2020-06-19 |
| -- | 6.44 x 2.96 x 0.35 inches |
| -- | 6.77 ounces |
| -- | Black, Blue, Red and White |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2400 x 1080 pixels | 1600 x 720 pixels |
| AMOLED | TFT |
| 418 pixels per inch | 270 pixels per inch |
| 1100 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.9 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 8+ Gen 1 SM8450 (4 nm) chipset | Samsung Exynos 850 chipset |
| processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 8 GB RAM | 3 GB RAM |
| Adreno 730 GPU | Mali-G76 GPU |
| 6.21 | 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 | |
| 50.00 MP + 16.00 MP | 48.00 MP + 13.00 MP |
| -- | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| -- | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 8.47 | 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 | Nano SIM, Dual SIM |
| 10.6 | 6.7 |
| Battery Life | |
| 4500mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 6.8 |
| Other Features | |
| Bluetooth 5.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Galaxy A21s is slightly better than the Xiaomi 12S, having a score of 77.7 against 72.9. Both of these phones use Android OS (operating system), but the Galaxy A21s has the older 10 version and Xiaomi 12S has Android 12 version. The Samsung Galaxy A21s counts with a much better performing processing unit than Xiaomi 12S, although it has a smaller amount of RAM memory, they both have 8 processing cores.
The Xiaomi 12S has a much better looking screen than Galaxy A21s, because although it has a quite smaller display, it also counts with a lot higher 1080 x 2400 resolution and much more pixels per screen inch. The Samsung Galaxy A21s counts with a way better camera than Xiaomi 12S, although it has a lower resolution camera in the back.
Xiaomi 12S has a little bit more storage for applications and games than Galaxy A21s, because although it has no external SD slot, it also counts with 128 GB internal memory capacity. The Galaxy A21s counts with a little better battery life than Xiaomi 12S, because it has an 11 percent greater battery size.
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