Compare phones
| Global Score | |
| 80.3 | 76.1 |
| Basic Information | |
| Xiaomi | Samsung |
| -- | Android 10 |
| 2019-01-15 | 2020-06-29 |
| 6.27 x 2.96 x 0.32 inches | 6.61 x 3.02 x 0.32 inches |
| 6.56 ounces | 6.81 ounces |
| Black, Blue and Red | Black |
| Glass (Corning Gorilla Glass 5) | Plastic and Plastic |
| Scratch-Resistant Glass | -- |
| -- | $ 194.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2340 x 1080 pixels | 1600 x 720 pixels |
| IPS LCD | IPS LCD |
| 409 pixels per inch | 270 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 660 SDM660 chipset | Mediatek Helio P35 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | Arm Cortex-A53, 64-bit, 12 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 3 GB RAM |
| Adreno 512 GPU | PowerVR GE8320 GPU |
| 9.18 | 9.27 |
| 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 | 16.00 MP + 13.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 0.5 inches (1/2") sensor | 0.33 inches (1/3.06") sensor |
| 1920 x 1080 (120 fps) (Full HD) video resolution | 1920 x 1080 (30 fps) (Full HD) video resolution |
| 11.44 | 9.35 |
| 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 |
| 6.7 | 6.7 |
| Battery Life | |
| 4000mAh Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| 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, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Xiaomi Redmi Note 7 is a little bit better than the Samsung Galaxy A21, getting an 80.3 score against 76.1. The Xiaomi Redmi Note 7 construction has the same thickness than Samsung Galaxy A21, but it is a bit lighter. Galaxy A21 features a little better hardware performance than Xiaomi Redmi Note 7, although it has a lower amount of RAM, they both have a Octa-Core CPU.
Xiaomi Redmi Note 7 features a sharper screen than Galaxy A21, because although it has a little bit smaller display, it also counts with a much better screen density and a much better 1080 x 2340 resolution. Xiaomi Redmi Note 7 counts with a much greater storage to install applications and games than Galaxy A21, because although it has an external memory slot that allows 256 GB smaller, it also counts with 128 GB internal memory.
Galaxy A21 and Xiaomi Redmi Note 7 both feature incredibly similar battery durations. Xiaomi Redmi Note 7 captures much better photos and videos than Galaxy A21, and although they both have a same size aperture and the same (Full HD) video quality, the Xiaomi Redmi Note 7 also has a back facing camera with a lot better 48 mega pixels resolution, higher video frame rate and a way larger back camera sensor capturing way better quality videos and photos.
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