Compare phones
| Global Score | |
| 87.7 | 79.2 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | Android 11, 10, 9.0 Pie |
| 2020-09-11 | 2019-07-24 |
| 6.45 x 3.00 x 0.37 inches | 6.04 x 2.83 x 0.33 inches |
| 7.51 ounces | 6.13 ounces |
| Black and White | Blue, Gray and White |
| Plastic and Plastic | Glass (Corning Gorilla Glass 5) and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6.1 inches |
| 2340 x 1080 pixels | 1560 x 720 pixels |
| Super AMOLED Plus | Super AMOLED |
| 385 pixels per inch | 282 pixels per inch |
| No touch screen | No touch screen |
| 8 | 7.3 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | Qualcomm Snapdragon 665 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 260, 64-bit, 11 nm (Octa-Core 2000 MHz) processor |
| 6 GB RAM | 4 GB RAM |
| Adreno 618 GPU | Adreno 610 GPU |
| 9.27 | 9.09 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 256 GB) external memory slot |
| 14.14 | 13.18 |
| Camera | |
| 64.00 MP + 32.00 MP | 48.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | 0.43 inches (1/2.3") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| -- | 1280 x 720 (240 fps) (HD) slow motion video |
| 11.88 | 11.44 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 7000mAh Battery | 4030mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 8.32 | 5.92 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | -- |
| -- | Infra-red port |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | FM Radio |
Comparison review
The Galaxy M51 has a score of 87.7, which is better than the Xiaomi Mi A3's 79.2 general score. Galaxy M51's body is newer, but heavier and thicker than the Xiaomi Mi A3. These phones have Android OS (operating system), but Galaxy M51 has an older 10 version and Xiaomi Mi A3 has Android 11 version.
Galaxy M51 counts with a bit better processing power than Xiaomi Mi A3, and although they both have the same number of cores, the Galaxy M51 also has a greater amount of RAM. The Samsung Galaxy M51 has a slightly better screen than Xiaomi Mi A3, because it has a little bit bigger screen, a way better 1080 x 2340px resolution and a greater pixel quantity in each inch in the screen.
The Galaxy M51 features a little bit better memory to store more games and applications than Xiaomi Mi A3, and although they both have equal internal memory, the Galaxy M51 also has a SD memory slot that allows up to 512 GB. Samsung Galaxy M51 features just a bit better camera than Xiaomi Mi A3, and although they both have a same size aperture, the same 3840x2160 (4K) video quality and the same 30 frames per second video frame rates, the Samsung Galaxy M51 also has a lot more mega pixels camera in the back and a much bigger back-facing camera sensor taking way better quality videos and photos.
Samsung Galaxy M51 features a much longer battery duration than Xiaomi Mi A3, because it has 7000mAh of battery capacity.
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