Compare phones
| Global Score | |
| 77.7 | 75.8 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 8.0 Oreo, 7.1 Nougat |
| 2020-06-19 | 2018-02-22 |
| 6.44 x 2.96 x 0.35 inches | 6.24 x 2.97 x 0.32 inches |
| 6.77 ounces | 6.38 ounces |
| Black, Blue, Red and White | 16 777 216 |
| -- | Metal |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.5 inches | 6 inches |
| 1600 x 720 pixels | 2160 x 1080 pixels |
| TFT | IPS LCD |
| 270 pixels per inch | 402 pixels per inch |
| No touch screen | No touch screen |
| 7.2 | 8 |
| Performance | |
| Samsung Exynos 850 chipset | Qualcomm Snapdragon 636 SDM636 chipset |
| Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 1800 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-G76 GPU | Adreno 509 GPU |
| 9.09 | 9 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 128 GB) external memory slot |
| 9.84 | 10.02 |
| Camera | |
| 48.00 MP + 13.00 MP | 12.00 MP + 20.00 MP |
| f/2.00 aperture | f/2.20 aperture |
| 26.00mm focal length | -- |
| 0.5 inches (1/2") sensor | -- |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 10.78 | 8.91 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 5000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A21s has a score of 77.7, which is just a bit better than the Xiaomi Redmi Note 5 Pro's score of 75.8. The Galaxy A21s construction is much newer, but a bit thicker and a little bit heavier than the Xiaomi Redmi Note 5 Pro. Both of these phones include Android OS (operating system), but the Galaxy A21s has the older 10 version while Xiaomi Redmi Note 5 Pro has Android 8.0 Oreo.
Xiaomi Redmi Note 5 Pro features a more vivid display than Galaxy A21s, because although it has a little bit smaller display, it also counts with a way better resolution of 1080 x 2160px and a greater number of pixels per inch in the display. Galaxy A21s has a bit more powerful processing unit than Xiaomi Redmi Note 5 Pro, although it has lesser RAM, they both have the same number of cores.
The Xiaomi Redmi Note 5 Pro counts with a slightly better memory capacity to install games and applications than Galaxy A21s, because although it has a SD memory slot that admits up to 128 GB against 512 GB, it also counts with more internal storage. Samsung Galaxy A21s takes much clearer photographs and videos than Xiaomi Redmi Note 5 Pro, and although they both have the same (Full HD) video definition and the same 30 fps video frame rates, the Samsung Galaxy A21s also has a much higher resolution camera in the back and a bigger aperture.
The Galaxy A21s counts with better battery life than Xiaomi Redmi Note 5 Pro, because it has 5000mAh of battery capacity instead of 4000mAh.
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