Compare phones
| Global Score | |
| 84.1 | 78.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | Android 11 |
| 2020-03-23 | 2021-04-20 |
| 6.26 x 2.96 x 0.35 inches | 6.32 x 2.93 x 0.33 inches |
| 6.63 ounces | 6.31 ounces |
| Midnight blue and Raven black | Lake Green, Onyx Gray and Pebble White |
| Plastic and Plastic | -- |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 199.00 |
| Display / Screen | |
| 6.4 inches | 6.4 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| Super AMOLED | AMOLED |
| 403 pixels per inch | 411 pixels per inch |
| 420 cd/m2 brightness | 1100 cd/m2 brightness |
| No touch screen | No touch screen |
| 8.4 | 9 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 678 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 460, 64-bit, 11 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 612 GPU |
| 9.27 | 9.18 |
| 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 | -- |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 9.9 |
| 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 | |
| 6000mAh Li - Polymer Battery | 5000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope and Proximity Sensor | Accelerometer, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Galaxy M21 has a global score of 84.1, which is a little bit better than Xiaomi Redmi Note 10's 78.3 general score. Both phones in this comparison review have the same Android 11 OS (Operating System), so you shouldn't see any differences in that aspect. Although Galaxy M21 is better than Xiaomi Redmi Note 10, it must be noted that it's also an older, a little thicker and a bit heavier phone.
The Samsung Galaxy M21 counts with a bit better performance than Xiaomi Redmi Note 10. Both have 4 GB of RAM and 8 processing cores. Xiaomi Redmi Note 10 has a slightly better looking screen than Galaxy M21, and although they both have a screen of the same size, the Xiaomi Redmi Note 10 also has a bit higher resolution of 1080 x 2400 pixels, much more screen brightness and a little better pixels count per display inch.
The Galaxy M21 features a superior camera than Xiaomi Redmi Note 10, although it has a tinier diafragm aperture which is worse for shooting pictures and/or video in low light environments, they both have a same size back camera sensor and the same resolution camera in the back. Xiaomi Redmi Note 10 features as much storage for applications, games, photos and videos as Galaxy M21, both of them have a SD card slot that supports a maximum of 512 GB and equal 64 GB internal memory capacity.
The Galaxy M21 features better battery performance than Xiaomi Redmi Note 10, because it has a 6000mAh battery capacity against 5000mAh.
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