Compare phones
| Global Score | |
| 84.1 | 80.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | -- |
| 2020-03-23 | 2019-01-15 |
| 6.26 x 2.96 x 0.35 inches | 6.27 x 2.96 x 0.32 inches |
| 6.63 ounces | 6.56 ounces |
| Midnight blue and Raven black | Black, Blue and Red |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.3 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 403 pixels per inch | 409 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Mali-G72 MP3 GPU | Adreno 512 GPU |
| 9.27 | 9.18 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 11.74 | 13.18 |
| 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 (120 fps) (Full HD) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 11.55 | 11.44 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 4000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
The Samsung Galaxy M21 is just a bit better than Xiaomi Redmi Note 7, having an 84.1 score against 80.3. Samsung Galaxy M21's design is newer than Xiaomi Redmi Note 7's, but it is a little thicker and just a little bit heavier. The Samsung Galaxy M21 counts with a bit sharper display than Xiaomi Redmi Note 7, because although it has a just a little worse count of pixels per inch of screen, and they both have the same 1080 x 2340 resolution, the Samsung Galaxy M21 also counts with a bit larger display.
Samsung Galaxy M21 counts with a bit better processing unit than Xiaomi Redmi Note 7. They have a Octa-Core processing unit and a 4 GB RAM. Xiaomi Redmi Note 7 features a greater storage capacity for games and applications than Galaxy M21, because although it has a slot for external memory cards that admits 256 GB smaller, it also counts with 128 GB internal storage capacity.
Samsung Galaxy M21 has a way better battery duration than Xiaomi Redmi Note 7, because it has 6000mAh of battery capacity instead of 4000mAh. The Samsung Galaxy M21 captures just a bit better photos and videos than Xiaomi Redmi Note 7, because although it has a smaller aperture, and they both have a 0.5 inches sensor and a back camera with a 48 mega-pixels, the Samsung Galaxy M21 also counts with a way better (4K) video definition.
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