Compare phones
| Global Score | |
| 77 | 87.7 |
| Basic Information | |
| Motorola | Samsung |
| Android 11 | Android 10 |
| 2021-12-06 | 2020-09-11 |
| 6.37 x 2.91 x 0.34 inches | 6.45 x 3.00 x 0.37 inches |
| 6.38 ounces | 7.51 ounces |
| Baby Blue and Mineral Grey | Black and White |
| -- | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 6.4 inches | 6.7 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| IPS LCD | Super AMOLED Plus |
| 411 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| MediaTek Helio G85 MT6769Z (12 nm) chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| Cortex, 64-bit (Octa-Core 2000 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 4 GB RAM | 6 GB RAM |
| Mali-G52 MC2 GPU | Adreno 618 GPU |
| 9.09 | 9.27 |
| Storage | |
| 64 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1 TB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 13.02 | 14.14 |
| Camera | |
| 50.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/1.80 aperture | f/1.80 aperture |
| -- | 26.00mm focal length |
| -- | 0.57 inches (1/1.76") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 10.45 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA+ (4G) and HSDPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 6.7 |
| Battery Life | |
| 5000mAh Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.8 | 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
Galaxy M51 has an overall score of 87.7, which is much better than the Moto G31's global score of 77. Both of these devices use Android OS (operating system), but the Galaxy M51 has older 10 version and Moto G31 has Android 11 version. Despite being the best phone in our current comparison, Galaxy M51's construction is older, heavier and just a little thicker than the Moto G31.
Moto G31 has just a bit better display than Galaxy M51, because although it has a little bit smaller screen, it also counts with a little more pixels per display inch and a bit higher resolution of 1080 x 2400. Galaxy M51 counts with slightly more memory capacity to store more games and applications than Motorola Moto G31, because although it has an external memory slot that holds a maximum of 512 GB against 1 TB, it also counts with 128 GB internal memory.
The Galaxy M51 has a little faster processing unit than Motorola Moto G31, and although they both have a Octa-Core processing unit, the Galaxy M51 also has a higher amount of RAM memory. The Samsung Galaxy M51 features a really longer battery lifetime than Motorola Moto G31, because it has a 40 percent bigger battery capacity.
Samsung Galaxy M51 features a much better camera than Moto G31, and although they both have a same size aperture, the Samsung Galaxy M51 also has a way better 3840x2160 (4K) video resolution and a way better 64 mega-pixels resolution back-facing camera.
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