Compare phones
| Global Score | |
| 75.3 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 8.1 Oreo, 7.1 Nougat | Android 11, 10 |
| 2017-09-12 | 2019-12-27 |
| 6.01 x 2.91 x 0.30 inches | 6.24 x 2.90 x 0.31 inches |
| 5.75 ounces | 6.07 ounces |
| Black and Blue | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| Aluminum and Glass | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| $ 444.00 | $ 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 |
| 550 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.5 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 660 chipset | Samsung Exynos 9611 chipset |
| Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 512 GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 10.1 | 14.14 |
| Camera | |
| 12.00 MP + 16.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/2.00 aperture |
| 27.00mm focal length | 26.00mm focal length |
| -- | 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 (120 fps) (HD) slow motion video | 1280 x 720 (240 fps) (HD) slow motion video |
| 9.57 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| -- | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 3 | 6.7 |
| Battery Life | |
| 3500mAh Li - Ion Battery | 4000mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.44 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| Infra-red port | -- |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy A51 is better than Xiaomi Mi Note 3, having a score of 85.5 against 75.3. These phones use Android OS (Operating System), but the Samsung Galaxy A51 has older 11 version and Xiaomi Mi Note 3 has Android 8.1 Oreo. Samsung Galaxy A51 is a newer cellphone than the Xiaomi Mi Note 3, although it's a little bit thicker and just a bit heavier.
Xiaomi Mi Note 3 has just a bit better looking display than Galaxy A51, although it has a bit worse 1080 x 1920 resolution, a just a little worse pixels number in each inch in the display and a little smaller screen. The Galaxy A51's processor is very similar to the Xiaomi Mi Note 3 one, and although the Galaxy A51 has a smaller amount of RAM memory, they both have the same number of cores.
Samsung Galaxy A51 takes a lot better photographs and videos than Xiaomi Mi Note 3, because although it has a tinier aperture, and they both have the same 3840x2160 video quality and the same 30 fps video frame rate, the Samsung Galaxy A51 also counts with a much more megapixels camera in the back.
The Galaxy A51 counts with much more memory to install applications and games than Xiaomi Mi Note 3, and although they both have equal 128 GB internal storage capacity, the Galaxy A51 also has a slot for an SD memory card that allows up to 512 GB. Galaxy A51 counts with just a little bit longer battery performance than Xiaomi Mi Note 3, because it has 4000mAh of battery capacity instead of 3500mAh.
In addition to being the best phone between the ones we are comparing here, the Galaxy A51 is also very cheap compared to the other phones.
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