Compare phones
| Global Score | |
| 68.9 | 85.5 |
| Basic Information | |
| Xiaomi | Samsung |
| Android 4.4.2, 4.2.1 | Android 11, 10 |
| 0000-00-00 | 2019-12-27 |
| 5.67 x 2.90 x 0.32 inches | 6.24 x 2.90 x 0.31 inches |
| 5.11 ounces | 6.07 ounces |
| Black | Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 269.00 | $ 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 800 8974-AB chipset | Samsung Exynos 9611 chipset |
| Krait 400 (Quad-Core 2360 MHz) processor | ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor |
| 2 GB (933 MHz) RAM | 4 GB RAM |
| Adreno 330 (450 MHz) GPU | Mali-G72 MP3 GPU |
| 9.27 | 9.27 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| No SD card slot | microSDXC (up to 512 GB) external memory slot |
| 4.4 | 14.14 |
| Camera | |
| 13.00 MP + 2.00 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 |
| 8.91 | 11.55 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| HSPA+ (4G), HSDPA, HSUPA, UMTS, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| SIM | Nano SIM, Dual SIM |
| 4.6 | 6.7 |
| Battery Life | |
| 3050mAh Li-Ion 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 | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy A51 has a global score of 85.5, which is a lot better than the Xiaomi Mi-3's overall score of 68.9. The Galaxy A51 is a just a little bit thinner but somewhat heavier phone than Xiaomi Mi-3. Both of these phones work with Android OS (operating system), but the Galaxy A51 has the older 11 version and Xiaomi Mi-3 has Android 4.4.2 version.
Xiaomi Mi-3 counts with a better looking screen than Galaxy A51, because although it has a bit lower 1920 x 1080 resolution and a much smaller display, it also counts with a bit greater number of pixels in each screen inch. Samsung Galaxy A51 counts with a much better storage for games and applications than Xiaomi Mi-3, because it has 128 GB internal storage and a slot for an SD memory card that admits a maximum of 512 GB.
The Samsung Galaxy A51 has a processing unit that's very similar to the CPU in Xiaomi Mi-3, because although the Samsung Galaxy A51 has doesn't have a graphics processing unit, it also counts with more cores (but slower) and a greater amount of RAM. Galaxy A51 features a way better camera than Xiaomi Mi-3, because it has a camera in the back with a lot better 48 mega pixels resolution, a bigger camera aperture to take better low-light images and videos and a way better video quality.
The Samsung Galaxy A51 features better battery duration than Xiaomi Mi-3, because it has a 31% more battery capacity.
Samsung Galaxy A51 costs a bit more than the Xiaomi Mi-3, but you can get a much better phone for that extra money.
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