Compare phones
| Global Score | |
| 75.6 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie | Android 10 |
| 2019-09-26 | 2020-06-19 |
| 6.34 x 2.97 x 0.34 inches | 6.44 x 2.96 x 0.35 inches |
| 7.05 ounces | 6.77 ounces |
| Moonlight white, Neptune blue and Space black | Black, Blue, Red and White |
| Glass (Corning Gorilla Glass 5) and Plastic | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | TFT |
| 409 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 665 SM6125 chipset | Samsung Exynos 850 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Adreno 610 GPU | Mali-G76 GPU |
| 9.09 | 9.09 |
| Storage | |
| 32 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 9.84 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 13.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") 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 (240 fps) (HD) slow motion video | -- |
| 11.44 | 10.78 |
| 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+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | 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
Samsung Galaxy A21s is just a bit better than Xiaomi Redmi Note 8T, having a score of 77.7 against 75.6. Although Samsung Galaxy A21s and Xiaomi Redmi Note 8T were only released 9 months apart, Samsung Galaxy A21s's design is a little bit thicker but also a little bit lighter. Both devices in this comparison review include Android operating system, but the Samsung Galaxy A21s has older 10 version and Xiaomi Redmi Note 8T has Android 9.0 Pie.
The Galaxy A21s counts with a CPU that is just as good as the processing unit in Xiaomi Redmi Note 8T, both have a Octa-Core processing unit and a 3 GB RAM memory. The Xiaomi Redmi Note 8T features a brighter display than Samsung Galaxy A21s, because although it has a bit smaller screen, it also counts with a way better 1080 x 2340 resolution and a way better display pixel density.
Galaxy A21s counts with a better memory capacity to store more games and applications than Xiaomi Redmi Note 8T, and although they both have the same internal storage capacity, the Galaxy A21s also has a slot for SD memory cards that admits up to 512 GB. The Samsung Galaxy A21s features greater battery performance than Xiaomi Redmi Note 8T, because it has a 5000mAh battery capacity.
Xiaomi Redmi Note 8T features a bit better camera than Samsung Galaxy A21s, and although they both have the same resolution back facing camera and a 0.5 inches camera sensor, the Xiaomi Redmi Note 8T also has a much higher (4K) video quality and a bigger aperture.
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