Compare phones
| Global Score | |
| 75.2 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 4.4.3 | Android 10 |
| 2014-07-22 | 2020-06-19 |
| 5.48 x 2.70 x 0.35 inches | 6.44 x 2.96 x 0.35 inches |
| 5.26 ounces | 6.77 ounces |
| Black and White | Black, Blue, Red and White |
| Scratch-Resistant Glass | -- |
| $ 329.00 | -- |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 1600 x 720 pixels |
| IPS LCD | TFT |
| 441 pixels per inch | 270 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | Samsung Exynos 850 chipset |
| Qualcomm Krait 400 (Quad-Core 2500 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali-G76 GPU |
| 9.36 | 9.09 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 7.7 | 9.84 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | -- |
| 9.79 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3080mAh Li-Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 6.8 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
Comparison review
Samsung Galaxy A21s is a little bit better than Xiaomi Mi 4, getting a global score of 77.7 against 75.2. These phones include Android OS (Operating System), but the Samsung Galaxy A21s has the previous 10 version and Xiaomi Mi 4 has Android 4.4.3 version. Samsung Galaxy A21s is a extremely heavier device than Xiaomi Mi 4, but both of them are equally thin.
Xiaomi Mi 4 features a much better display than Samsung Galaxy A21s, because although it has a lot smaller display, it also counts with way more pixels per inch in the screen and a higher resolution of 1920 x 1080 pixels. The Xiaomi Mi 4 features a bit faster processing unit than Galaxy A21s, because although it has less processing cores (but faster), and they both have 3 GB of RAM memory, the Xiaomi Mi 4 also counts with an additional GPU.
Samsung Galaxy A21s shoots much better photos and videos than Xiaomi Mi 4, because although it has a smaller aperture, and they both have the same 30 fps video frame rates and the same (Full HD) video definition, the Samsung Galaxy A21s also counts with a much larger back camera sensor taking much better quality photographs and videos and a lot higher 48 mega pixels resolution back camera.
Galaxy A21s features much more memory capacity for apps and games than Xiaomi Mi 4, because although it has less internal storage capacity, it also counts with a SD memory slot that supports a maximum of 512 GB. Samsung Galaxy A21s features a much longer battery life than Xiaomi Mi 4, because it has 5000mAh of battery capacity instead of 3080mAh.
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