Compare phones
| Global Score | |
| 83 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 10 |
| 2021-01-18 | 2020-06-19 |
| 6.37 x 3.04 x 0.36 inches | 6.44 x 2.96 x 0.35 inches |
| 7.02 ounces | 6.77 ounces |
| Daybreak purple and Nightfall black | Black, Blue, Red and White |
| Plastic | -- |
| Scratch-Resistant Glass | -- |
| 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 |
| 8.1 | 7.2 |
| Performance | |
| MediaTek Dimensity 800U chipset | Samsung Exynos 850 chipset |
| ARM Cortex-A76 and ARM Cortex-A55, 64-bit, 7 nm (Octa-Core 2400 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Mali-G57 MC3 GPU | Mali-G76 GPU |
| 9.36 | 9.09 |
| Storage | |
| 64 GB internal memory | 32 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 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 |
| 3840 x 2160 (30 fps) (4K) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 1920 x 1080 (120 fps) (Full HD) slow motion video | -- |
| 11.55 | 10.78 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, 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 |
| 10.7 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 6.8 |
| Other Features | |
| Bluetooth 5.1 | 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 Xiaomi Redmi Note 9T is just a bit better than Galaxy A21s, getting an 83 score against 77.7. Both of these devices work with the same Android 10 operating system. Although it's the best in this comparison, we must highlight that it is also a just a bit heavier and a little bit thicker phone. The Xiaomi Redmi Note 9T has a bit better processing power than Galaxy A21s, and although they both have the same number of cores, the Xiaomi Redmi Note 9T also has more RAM memory.
The Xiaomi Redmi Note 9T counts with a sharper screen than Galaxy A21s, and although they both have a screen of the same size, the Xiaomi Redmi Note 9T also has a greater pixel density and a lot higher 1080 x 2340 resolution. The Xiaomi Redmi Note 9T has just a bit better camera than Samsung Galaxy A21s, and although they both have the same back-facing camera sensor size and the same resolution back camera, the Xiaomi Redmi Note 9T also has a lot better 3840x2160 (4K) video resolution and a larger diafragm aperture to take better photography and video in poorly lited situations.
Xiaomi Redmi Note 9T features a better storage for applications, games, photos and videos than Galaxy A21s, and although they both have a SD card slot that holds a maximum of 512 GB, the Xiaomi Redmi Note 9T also has 32 GB more internal memory capacity. The Xiaomi Redmi Note 9T and the Galaxy A21s both count with incredibly similar batteries.
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