Compare phones
| Global Score | |
| 84.1 | 83 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 10 |
| 2020-03-23 | 2021-01-18 |
| 6.26 x 2.96 x 0.35 inches | 6.37 x 3.04 x 0.36 inches |
| 6.63 ounces | 7.02 ounces |
| Midnight blue and Raven black | Daybreak purple and Nightfall black |
| Plastic and Plastic | Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.5 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 396 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Exynos 9611 chipset | MediaTek Dimensity 800U chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | ARM Cortex-A76 and ARM Cortex-A55, 64-bit, 7 nm (Octa-Core 2400 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Mali-G57 MC3 GPU |
| 9.27 | 9.36 |
| Storage | |
| 64 GB internal memory | 64 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 11.74 |
| Camera | |
| 48.00 MP + 20.00 MP | 48.00 MP + 13.00 MP |
| f/2.00 aperture | f/1.80 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | 1920 x 1080 (120 fps) (Full HD) slow motion video |
| 11.55 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 10.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.1 |
| GPS | GPS |
| -- | NFC |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Samsung Galaxy M21 is a little bit better than the Xiaomi Redmi Note 9T, with a score of 84.1 against 83. Both devices we compare here come with Android OS, but the Samsung Galaxy M21 has the newer 11 version while Xiaomi Redmi Note 9T has Android 10 version, providing you a couple additional features. Samsung Galaxy M21's construction is just a little bit lighter and just a little thinner than Xiaomi Redmi Note 9T, even though it was released about 10 months before.
The Xiaomi Redmi Note 9T counts with a bit better CPU than Samsung Galaxy M21. Both have a 4 GB RAM memory and 8 cores. The Galaxy M21 features a little sharper display than Xiaomi Redmi Note 9T, because although it has a little smaller display, and they both have an equal 1080 x 2340 resolution, the Galaxy M21 also counts with a little bit more pixels per inch in the display.
The Xiaomi Redmi Note 9T's camera is very similar to the Galaxy M21 one, and although the Xiaomi Redmi Note 9T has a larger diafragm aperture for better low-light photography, they both have a 0.5 inches sensor, the same video frame rate, a 48 MP resolution camera and the same video resolution. Xiaomi Redmi Note 9T and Samsung Galaxy M21 both count with incredibly similar storage for apps and games, both of them have a slot for external memory cards that holds up to 512 GB and the same internal memory capacity.
Galaxy M21 has longer battery duration than Xiaomi Redmi Note 9T, because it has 6000mAh of battery capacity.
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