Compare phones
| Global Score | |
| 74.4 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 7.1 Nougat | Android 11, 10 |
| 2018-02-22 | 2019-12-27 |
| 6.24 x 2.97 x 0.32 inches | 6.24 x 2.90 x 0.31 inches |
| 6.35 ounces | 6.07 ounces |
| 16 777 216 | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| -- | $ 282.00 |
| Display / Screen | |
| 6 inches | 6.5 inches |
| 2160 x 1080 pixels | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 402 pixels per inch | 405 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 625 8953 chipset | Samsung Exynos 9611 chipset |
| ARM Cortex-A53, 64-bit, 14 nm (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 | |
| 12.00 MP + 5.00 MP | 48.00 MP + 32.00 MP |
| f/2.20 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 (240 fps) (HD) slow motion video |
| 8.8 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM | Nano SIM, Dual SIM |
| 6.1 | 6.7 |
| Battery Life | |
| 4000mAh 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 |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
Galaxy A51 is much better than Xiaomi Redmi Note 5, with an 85.5 score against 74.4. Galaxy A51 is a newer cellphone, and it is also just a little thinner and just a little bit lighter than the Xiaomi Redmi Note 5. Both of these phones come with Android operating system, but Galaxy A51 has an older 11 version and Xiaomi Redmi Note 5 has Android 7.1 Nougat.
The Galaxy A51 features a bit sharper display than Xiaomi Redmi Note 5, because it has a quite better 1080 x 2400 resolution, a bit larger display and a little more pixels per inch of display. The Samsung Galaxy A51 has much more storage capacity to store more apps and games than Xiaomi Redmi Note 5, because it has a SD extension slot that admits up to 512 GB and 128 GB internal memory.
Samsung Galaxy A51 has just a bit better hardware performance than Xiaomi Redmi Note 5. They have a 4 GB RAM and 8 cores. Galaxy A51 and Xiaomi Redmi Note 5 have really similar batteries. Samsung Galaxy A51 takes much better photos and videos than Xiaomi Redmi Note 5, because it has a larger diafragm aperture, a back facing camera with a way higher resolution and a way higher (4K) video definition.
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