Compare phones
| Global Score | |
| 85.5 | 80.3 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 11, 10 | -- |
| 2019-12-27 | 2019-01-15 |
| 6.24 x 2.90 x 0.31 inches | 6.27 x 2.96 x 0.32 inches |
| 6.07 ounces | 6.56 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black, Blue and Red |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.3 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | IPS LCD |
| 405 pixels per inch | 409 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| Samsung 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 | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 13.18 |
| Camera | |
| 48.00 MP + 32.00 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 |
| 1280 x 720 (240 fps) (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 | |
| 4000mAh Li - Polymer Battery | 4000mAh 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
Galaxy A51 has an overall score of 85.5, which is a bit better than Xiaomi Redmi Note 7's 80.3 general score. The Galaxy A51 construction is newer, just a little lighter and just a little bit thinner than the Xiaomi Redmi Note 7. The Galaxy A51 features a bit more powerful CPU than Xiaomi Redmi Note 7. They have a Octa-Core processor and the same RAM memory amount.
Galaxy A51 and Xiaomi Redmi Note 7 count with really similar screens, because although the Xiaomi Redmi Note 7 has a bit smaller screen and a little lower resolution of 1080 x 2340, it also counts with a just a bit higher pixel number per screen inch. The Galaxy A51 captures just a bit better pictures and videos than Xiaomi Redmi Note 7, because although it has a tinier camera aperture which is not recommended for low-light photos and videos, and they both have the same back-facing camera sensor size and the same resolution camera, the Galaxy A51 also counts with a lot higher 3840x2160 (4K) video definition.
Galaxy A51 counts with just a bit bigger storage for applications, games, photos and videos than Xiaomi Redmi Note 7, and although they both have exactly the same internal storage, the Galaxy A51 also has an external memory slot that admits up to 512 GB. Xiaomi Redmi Note 7 has a battery lifetime that's very similar to Galaxy A51's battery performance.
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