Compare phones
| Global Score | |
| 80.3 | 77.7 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 10 |
| 2019-01-15 | 2020-06-19 |
| 6.27 x 2.96 x 0.32 inches | 6.44 x 2.96 x 0.35 inches |
| 6.56 ounces | 6.77 ounces |
| Black, Blue and Red | Black, Blue, Red and White |
| Glass (Corning Gorilla Glass 5) | -- |
| Scratch-Resistant Glass | -- |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | TFT |
| 409 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.2 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Samsung Exynos 850 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A55, 64-bit (Octa-Core 2000 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 512 GPU | Mali-G76 GPU |
| 9.18 | 9.09 |
| Storage | |
| 128 GB internal memory | 32 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.18 | 9.84 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 13.00 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 | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 11.44 | 10.78 |
| 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 | 5000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 6.8 |
| Other Features | |
| Bluetooth 5.0 | 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 |
Comparison review
The Xiaomi Redmi Note 7 has a global score of 80.3, which is slightly better than the Galaxy A21s's 77.7 score. The Xiaomi Redmi Note 7 is an older phone than Galaxy A21s, but it is a bit lighter and just a little thinner anyway. Xiaomi Redmi Note 7 counts with a little better processing power than Galaxy A21s, and although they both have 8 CPU cores, the Xiaomi Redmi Note 7 also has more RAM memory.
Xiaomi Redmi Note 7 features a more vivid screen than Galaxy A21s, because although it has a quite smaller screen, it also counts with a way greater pixels density and a lot higher 1080 x 2340 resolution. The Xiaomi Redmi Note 7 has a much bigger storage capacity for apps and games than Galaxy A21s, because although it has an external memory slot that admits 256 GB smaller, it also counts with 128 GB internal memory capacity.
Xiaomi Redmi Note 7 counts with a little bit better camera than Galaxy A21s, and although they both have the same sensor size, a camera with a 48 mega pixels resolution and the same 1920x1080 video resolution, the Xiaomi Redmi Note 7 also has faster 120 fps video frame rates and a larger aperture to take better photos and videos in low-light environments.
Galaxy A21s has longer battery life than Xiaomi Redmi Note 7, because it has 5000mAh of battery capacity against 4000mAh.
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