Compare phones
| Global Score | |
| 80.3 | 84.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 11, 10 |
| 2019-01-15 | 2020-03-23 |
| 6.27 x 2.96 x 0.32 inches | 6.26 x 2.96 x 0.35 inches |
| 6.56 ounces | 6.63 ounces |
| Black, Blue and Red | Midnight blue and Raven black |
| Glass (Corning Gorilla Glass 5) | 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 660 SDM660 chipset | Exynos 9611 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 512 GPU | Mali-G72 MP3 GPU |
| 9.18 | 9.27 |
| Storage | |
| 128 GB internal memory | 64 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.18 | 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 |
| 0.5 inches (1/2") sensor | 0.5 inches (1/2") sensor |
| 1920 x 1080 (120 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 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 | Nano SIM, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 6000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 7.52 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Gyroscope and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M21 is a little bit better than Xiaomi Redmi Note 7, getting an 84.1 score against 80.3. Galaxy M21's design is newer than Xiaomi Redmi Note 7's, but it's just a little thicker and a little heavier. The Samsung Galaxy M21 has a bit more powerful CPU than Xiaomi Redmi Note 7. They have a 4 GB RAM and the same number of cores.
The Galaxy M21 features a little more vivid display than Xiaomi Redmi Note 7, because although it has a just a little lower pixel amount in each inch in the display, and they both have the same resolution of 1080 x 2340px, the Galaxy M21 also counts with a quite bigger screen. The Xiaomi Redmi Note 7 features a greater memory capacity for games and applications than Galaxy M21, because although it has a SD memory card expansion slot that allows a maximum of 256 GB against 512 GB, it also counts with 128 GB internal storage capacity.
The Galaxy M21 features just a bit better camera than Xiaomi Redmi Note 7, because although it has a tinier aperture, and they both have a 48 mega pixels camera in the back and a 0.5 inches sensor, the Galaxy M21 also counts with a lot higher video resolution. The Galaxy M21 features a superior battery duration than Xiaomi Redmi Note 7, because it has 6000mAh of battery capacity.
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