Compare phones
| Global Score | |
| 86.5 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10 |
| 2020-03-05 | 2020-09-11 |
| 6.27 x 2.96 x 0.35 inches | 6.45 x 3.00 x 0.37 inches |
| 6.74 ounces | 7.51 ounces |
| Black, Blue and Red | Black and White |
| Plastic and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2340 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED Plus |
| 403 pixels per inch | 385 pixels per inch |
| 420 cd/m2 brightness | -- |
| No touch screen | No touch screen |
| 8.4 | 8 |
| Performance | |
| Exynos 9611 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Arm Cortex-A73 and Arm Cortex-A53, 64-bit, 10 nm (Octa-Core 2300 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 618 GPU |
| 9.36 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 11.74 | 14.14 |
| Camera | |
| 64.00 MP + 32.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.59 inches (1/1.7") sensor | 0.57 inches (1/1.76") sensor |
| 3840 x 2160 (30 fps) (4K) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 1920 x 1080 (240 fps) (Full HD) slow motion video | -- |
| 12.1 | 11.88 |
| 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, Dual SIM |
| 6.7 | 6.7 |
| Battery Life | |
| 6000mAh Li - Polymer Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 7.52 | 8.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| 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 Samsung Galaxy M51 is slightly better than Galaxy M31, getting a score of 87.7 against 86.5. Both of these phones come with Android operating system, but the Samsung Galaxy M51 has an older 10 version and Galaxy M31 has Android 11. The Samsung Galaxy M51 is better than Galaxy M31, it must be noted that it's also a a bit thicker and somewhat heavier device.
Galaxy M31 features just a bit better screen than Samsung Galaxy M51, because although it has a bit smaller screen, and they both have the same exact 1080 x 2340px resolution, the Galaxy M31 also counts with a just a little higher number of pixels per inch in the screen. Galaxy M51 counts with a much bigger storage capacity for apps and games than Samsung Galaxy M31, and although they both have an external memory slot that allows a maximum of 512 GB, the Galaxy M51 also has more internal memory.
The Galaxy M31 has just a little better hardware performance than Galaxy M51. Both of them have a Octa-Core CPU and the same RAM amount. Samsung Galaxy M31 captures just a bit better pictures and videos than Samsung Galaxy M51, and although they both have the same 30 frames per second video frame rates, the same 3840x2160 video resolution, a same resolution camera in the back and the same aperture, the Samsung Galaxy M31 also has a bigger back-facing camera sensor taking higher quality photographs.
Samsung Galaxy M51 has better battery duration than Samsung Galaxy M31, because it has a 7000mAh battery size.
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