Compare phones
| Global Score | |
| 75.6 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 9.0 Pie | Android 11, 10 |
| 2019-09-26 | 2020-03-23 |
| 6.34 x 2.97 x 0.34 inches | 6.26 x 2.96 x 0.35 inches |
| 7.05 ounces | 6.63 ounces |
| Moonlight white, Neptune blue and Space black | Midnight blue and Raven black |
| Glass (Corning Gorilla Glass 5) and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.3 inches | 6.4 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 403 pixels per inch |
| -- | 420 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.1 | 8.4 |
| Performance | |
| Qualcomm Snapdragon 665 SM6125 chipset | Exynos 9611 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 610 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.88 | 11.74 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 20.00 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 | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1920 x 1080 (240 fps) (Full HD) slow motion video |
| 11.44 | 11.55 |
| 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 | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| 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 | FM Radio |
Comparison review
Samsung Galaxy M21 is better than the Xiaomi Redmi Note 8T, with an 84.1 score against 75.6. The Samsung Galaxy M21 body is a bit lighter but just a bit thicker than the Xiaomi Redmi Note 8T, and both of them were released only a couple months apart. Both phones in our current comparison use Android operating system, but Samsung Galaxy M21 has 11 version and Xiaomi Redmi Note 8T has Android 9.0 Pie version.
Galaxy M21 has just a little better performance than Xiaomi Redmi Note 8T, and although they both have the same number of cores, the Galaxy M21 also has a higher amount of RAM. The Galaxy M21 features just a bit better looking display than Xiaomi Redmi Note 8T, because although it has a just a bit lower amount of pixels per display inch, and they both have the same 1080 x 2340 resolution, the Galaxy M21 also counts with a little bigger display.
Galaxy M21 counts with a superior memory capacity for games and applications than Xiaomi Redmi Note 8T, because it has 64 GB internal memory capacity and a slot for an external memory card that allows a maximum of 512 GB. Samsung Galaxy M21 features a really longer battery life than Xiaomi Redmi Note 8T, because it has a 50 percent more battery size.
Galaxy M21 takes slightly better pictures and videos than Xiaomi Redmi Note 8T, although it has a smaller aperture which is not favorable for low-light photography and video, they both have the same 3840x2160 (4K) video definition, a camera with a 48 MP, a 0.5 inches sensor and the same 30 fps video frame rate.
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