Compare phones
| Global Score | |
| 85.5 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10 |
| 2019-12-27 | 2020-09-11 |
| 6.24 x 2.90 x 0.31 inches | 6.45 x 3.00 x 0.37 inches |
| 6.07 ounces | 7.51 ounces |
| Prism Crush black, Prism Crush blue, Prism Crush pink and Prism Crush white | Black and White |
| Plastic and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 282.00 | -- |
| Display / Screen | |
| 6.5 inches | 6.7 inches |
| 2400 x 1080 pixels | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED Plus |
| 405 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 8.1 | 8 |
| Performance | |
| Samsung 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 |
| 4 GB RAM | 6 GB RAM |
| Mali-G72 MP3 GPU | Adreno 618 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 512 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 14.14 | 14.14 |
| Camera | |
| 48.00 MP + 32.00 MP | 64.00 MP + 32.00 MP |
| f/2.00 aperture | f/1.80 aperture |
| 26.00mm focal length | 26.00mm focal length |
| 0.5 inches (1/2") sensor | 0.57 inches (1/1.76") 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 | -- |
| 11.55 | 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 | |
| 4000mAh Li - Polymer Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.92 | 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 has a score of 87.7, which is slightly better than the Galaxy A51's 85.5 global score. These devices work with Android OS, but Samsung Galaxy M51 has older 10 version and Galaxy A51 has Android 11 version. Samsung Galaxy M51's design is heavier and thicker than Galaxy A51. Galaxy A51 features a slightly better display than Samsung Galaxy M51, because although it has a little bit smaller screen, it also counts with a just a little greater pixel density and a slightly better resolution of 1080 x 2400.
The Samsung Galaxy M51's storage to install games and applications is very similar to the Galaxy A51 one, both of them have a SD memory slot that holds up to 512 GB and equal 128 GB internal storage capacity. The Samsung Galaxy M51 and Galaxy A51 have extremely similar processors, and although the Samsung Galaxy M51 has 2 GB more RAM, they both have the same number of cores.
Galaxy M51 takes just a bit better photos and videos than Galaxy A51, and although they both have the same video frame rate and the same 3840x2160 (4K) video resolution, the Galaxy M51 also has a larger sensor taking more light and vivid colors, a larger aperture to capture better photos and video in low-light environments and a camera in the back with lot more megapixels.
The Galaxy M51 counts with a superior battery lifetime than Galaxy A51, because it has 7000mAh of battery capacity instead of 4000mAh.
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