Compare phones
| Global Score | |
| 75.2 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 4.4.3 | Android 11, 10 |
| 2014-07-22 | 2019-12-27 |
| 5.48 x 2.70 x 0.35 inches | 6.24 x 2.90 x 0.31 inches |
| 5.26 ounces | 6.07 ounces |
| Black and White | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 329.00 | $ 282.00 |
| Display / Screen | |
| 5 inches | 6.5 inches |
| 1080 x 1920 pixels (Full HD) | 2400 x 1080 pixels |
| IPS LCD | Super AMOLED |
| 441 pixels per inch | 405 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9.1 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 801 8974-AC chipset | Samsung Exynos 9611 chipset |
| Qualcomm Krait 400 (Quad-Core 2500 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 330 (450 MHz) GPU | Mali-G72 MP3 GPU |
| 9.36 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 7.7 | 14.14 |
| Camera | |
| 13.00 MP + 8.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| -- | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.5 inches (1/2") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (60 fps) (Full HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.79 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 3080mAh Li-Polymer Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.04 | 5.92 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Infra-red port | -- |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
The Samsung Galaxy A51 is better than Xiaomi Mi 4, having a global score of 85.5 against 75.2. Both phones in this comparison review come with Android OS, but the Samsung Galaxy A51 has older 11 version and Xiaomi Mi 4 has Android 4.4.3 version. Samsung Galaxy A51's body is way newer and thinner than Xiaomi Mi 4's, but it's also somewhat heavier.
The Xiaomi Mi 4 has a more vivid display than Galaxy A51, because although it has a bit worse resolution of 1920 x 1080 pixels and a much smaller display, it also counts with a quite higher display pixels density. The Samsung Galaxy A51 counts with a much bigger memory capacity to install games and applications than Xiaomi Mi 4, because it has 128 GB internal storage and a SD card slot that holds up to 512 GB.
The Xiaomi Mi 4 has a little bit better processing power than Samsung Galaxy A51, because although it has an inferior number of cores and less RAM, it also counts with a graphics processor. Galaxy A51 features greater battery lifetime than Xiaomi Mi 4, because it has a 30% more battery size. Galaxy A51 takes much better photographs and videos than Xiaomi Mi 4, because although it has a smaller diafragm aperture which is not favorable for low-light captures and videos, and they both have the same 30 fps video frame rate and the same 3840x2160 video resolution, the Galaxy A51 also counts with a lot bigger sensor which provides a way higher image and video quality and a way higher 48 MP resolution back facing camera.
Even being the best phone of the ones we are comparing, Galaxy A51 is also cheaper.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.