Compare phones
| Global Score | |
| 74.1 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 7.0 Nougat, 6.0 Marshmallow | Android 11, 10 |
| 2017-01-23 | 2019-12-27 |
| 5.94 x 2.99 x 0.33 inches | 6.24 x 2.90 x 0.31 inches |
| 5.82 ounces | 6.07 ounces |
| 16 777 216 | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminum | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 190.00 | $ 282.00 |
| Display / Screen | |
| 5.5 inches | 6.5 inches |
| 1920 x 1080 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 401 pixels per inch | 405 pixels per inch |
| 450 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit (Octa-Core 2000 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 4 GB RAM | 4 GB RAM |
| Adreno 506 GPU | Mali-G72 MP3 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 128 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 10.02 | 14.14 |
| Camera | |
| 13.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| f/2.00 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| -- | 0.5 inches (1/2") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1280 x 720 (120 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.02 | 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 |
| Micro SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4100mAh Li - Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6 | 5.92 |
| Other Features | |
| Bluetooth 4.1 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Galaxy A51 is better than the Xiaomi Redmi Note 4, getting an 85.5 score against 74.1. Both of these devices use Android operating system, but the Galaxy A51 has an older 11 version and Xiaomi Redmi Note 4 has Android 7.0 Nougat version. Galaxy A51 is a extremely newer and just a little thinner device than the Xiaomi Redmi Note 4, but it's also just a bit heavier.
Galaxy A51 features a little faster processor than Xiaomi Redmi Note 4. Both of them have the same number of cores and 4 GB of RAM memory. Xiaomi Redmi Note 4 has a little sharper display than Samsung Galaxy A51, although it has a little worse amount of pixels per display inch, a bit lower resolution of 1080 x 1920 pixels and a quite smaller screen.
The Galaxy A51 takes much clearer photos and videos than Xiaomi Redmi Note 4, and although they both have a same size camera aperture, the Galaxy A51 also has a way better video quality and a camera with lot more mega pixels. Galaxy A51 counts with a much greater storage capacity to install applications and games or saving photos and videos than Xiaomi Redmi Note 4, because it has 128 GB internal storage capacity and a slot for an SD memory card that supports up to 512 GB.
The Xiaomi Redmi Note 4 counts with just a little bit longer battery performance than Samsung Galaxy A51, because it has a 4100mAh battery capacity.
Samsung Galaxy A51 costs a lot more than Xiaomi Redmi Note 4, but it's still a good choice, because you can get a much better phone for that extra money.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.