Compare phones
| Global Score | |
| 76.6 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 10 |
| 2020-05-20 | 2020-06-19 |
| 6.39 x 3.04 x 0.35 inches | 6.44 x 2.96 x 0.35 inches |
| 7.02 ounces | 6.77 ounces |
| Forest green, Midnight gray and Polar white | Black, Blue, Red and White |
| Plastic | -- |
| Scratch-Resistant Glass | -- |
| $ 283.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | TFT |
| 396 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.2 |
| Performance | |
| MediaTek Helio G85 chipset | Samsung Exynos 850 chipset |
| Arm Cortex-A75 and ArmCortex-A55, 64-bit, 12 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 3 GB RAM | 3 GB RAM |
| Mali G52 MC2 GPU | Mali-G76 GPU |
| 9.09 | 9.09 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.02 | 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 |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | -- |
| 11 | 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 | |
| 5020mAh Li - Polymer Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | 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 |
Comparison review
The Galaxy A21s is a little bit better than the Xiaomi Redmi Note 9, having a general score of 77.7 against 76.6. Both of these phones come with the same Android 10 OS (Operating System), so you shouldn't notice any difference regarding OS features. Galaxy A21s is a a bit lighter cellphone than the Xiaomi Redmi Note 9, but both of them have the same thickness.
The Galaxy A21s has a processing unit that's very similar to Xiaomi Redmi Note 9's processor, they have 8 processing cores and 3 GB of RAM memory. The Xiaomi Redmi Note 9 counts with a sharper display than Galaxy A21s, and although they both have a same size display, the Xiaomi Redmi Note 9 also has a greater screen density and a lot better resolution of 1080 x 2340 pixels.
Xiaomi Redmi Note 9 counts with a little bit more storage for games and applications than Galaxy A21s, because although it has an external SD slot that allows up to 128 GB against 512 GB, it also counts with more internal storage capacity. The Xiaomi Redmi Note 9 takes slightly better photographs and videos than Samsung Galaxy A21s, and although they both have a 0.5 inches back-facing camera sensor, the same 1920x1080 video resolution, the same resolution back camera and the same 30 frames per second video frame rate, the Xiaomi Redmi Note 9 also has a larger aperture to take better low-light photography and video.
The Galaxy A21s's battery lifetime is very similar to the Xiaomi Redmi Note 9 one, although the Galaxy A21s has 5000mAh of battery capacity instead of 5020mAh.
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