Compare phones
| Global Score | |
| 87.7 | 78 |
| Basic Information | |
| Samsung | Xiaomi |
| Android 10 | -- |
| 2020-09-11 | 2018-07-27 |
| 6.45 x 3.00 x 0.37 inches | 6.25 x 2.97 x 0.29 inches |
| 7.51 ounces | 5.93 ounces |
| Black and White | Black, Blue, Gold, Pink and Red |
| Plastic and Plastic | Aluminum |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.7 inches | 6 inches |
| 2340 x 1080 pixels | 2160 x 1080 pixels |
| Super AMOLED Plus | IPS LCD |
| 385 pixels per inch | 402 pixels per inch |
| No touch screen | No touch screen |
| 8 | 8.1 |
| Performance | |
| Qualcomm Snapdragon 730 SM7150-AA chipset | Qualcomm Snapdragon 660 SDM660 chipset |
| Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 260, 64-bit, 14 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Adreno 618 GPU | Adreno 512 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | No SD card slot |
| 14.14 | 10.1 |
| Camera | |
| 64.00 MP + 32.00 MP | 12.00 MP + 20.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | -- |
| 0.57 inches (1/1.76") sensor | 0.34 inches (1/2.9") 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 |
| 11.88 | 9.79 |
| 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 and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.7 | 6.3 |
| Battery Life | |
| 7000mAh Battery | 3010mAh Li - Polymer Battery |
| Non-Removable Battery | Non-Removable Battery |
| 8.32 | 4.96 |
| 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
Galaxy M51 has a general score of 87.7, which is better than the Xiaomi Mi A2's 78 score. The Galaxy M51 design is noticeably newer than the Xiaomi Mi A2's, although it's notably heavier and noticeably thicker. Xiaomi Mi A2 has just a bit better screen than Samsung Galaxy M51, because although it has a quite smaller screen and a quite lower resolution of 1080 x 2160px, it also counts with a bit higher pixel count in each inch in the screen.
Xiaomi Mi A2 and Samsung Galaxy M51 count with really similar processing units, both of them have the same RAM amount and the same number of cores. Galaxy M51 has a superior memory capacity to install games and applications than Xiaomi Mi A2, and although they both have the same 128 GB internal storage, the Galaxy M51 also has a slot for an SD memory card that holds a maximum of 512 GB.
Galaxy M51 takes a lot better photos and videos than Xiaomi Mi A2, and although they both have the same 3840x2160 (4K) video resolution, the same video frame rates and a F1.8 aperture, the Galaxy M51 also has a back-facing camera with a much better resolution and a lot bigger sensor capturing more light and vivid colors.
Samsung Galaxy M51 features a much better battery life than Xiaomi Mi A2, because it has 7000mAh of battery capacity.
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