Compare phones
| Global Score | |
| 74.6 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 10 | Android 11, 10 |
| 2019-10-16 | 2019-12-27 |
| 6.23 x 2.96 x 0.33 inches | 6.24 x 2.90 x 0.31 inches |
| 6.70 ounces | 6.07 ounces |
| Cosmic Purple, Moonlight White, Nebula Purple, Neptune Blue and Space Black | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Glass and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 227.00 | $ 282.00 |
| Display / Screen | |
| 6.3 inches | 6.5 inches |
| 2340 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 409 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 665 SM6125 chipset | Samsung Exynos 9611 chipset |
| Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 3 GB RAM | 4 GB RAM |
| Adreno 610 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 8.12 | 14.14 |
| Camera | |
| 48.00 MP + 13.00 MP | 48.00 MP + 32.00 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 |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (240 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.44 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G) and HSPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4000mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 5.92 |
| Other Features | |
| Bluetooth 4.2 | 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 better than Xiaomi Redmi Note 8's global score of 74.6. The Galaxy A51 is a a bit thinner and a little bit lighter phone than the Xiaomi Redmi Note 8, although both were released with only 2 months difference. Both of these devices come with Android operating system, but Galaxy A51 has a more recent 11 version and Xiaomi Redmi Note 8 has Android 10, providing the user lots of additional features.
The Galaxy A51 and Xiaomi Redmi Note 8 have incredibly similar displays, because although the Galaxy A51 has a bit worse amount of pixels per screen inch, it also counts with a little bigger display and a quite better resolution of 1080 x 2400px. Galaxy A51 has a little better hardware performance than Xiaomi Redmi Note 8, and although they both have the same number of cores, the Galaxy A51 also has more RAM memory.
The Samsung Galaxy A51 features a little bit better camera than Xiaomi Redmi Note 8, although it has a smaller aperture which is worse for shooting pictures and videos in low light environments, they both have the same (4K) video definition, the same 30 frames per second video frame rate, a 0.5 inches sensor and the same resolution back-facing camera.
Samsung Galaxy A51 counts with a way bigger storage capacity for games and applications than Xiaomi Redmi Note 8, because it has 128 GB internal storage and an external memory slot that supports up to 512 GB. The Galaxy A51's battery life is just as good as Xiaomi Redmi Note 8's battery duration.
Samsung Galaxy A51 costs more than the Xiaomi Redmi Note 8, but you can get a better phone for that extra dollars.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.