Compare phones
| Global Score | |
| 90.8 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 11, 10 | Android 10 |
| 2020-04-29 | 2020-09-11 |
| 6.26 x 2.90 x 0.34 inches | 6.45 x 3.00 x 0.37 inches |
| 6.60 ounces | 7.51 ounces |
| Prism cube black | Black and White |
| Aluminum and Plastic | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 339.00 | -- |
| 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 980 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm (Octa-Core 2200 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 6 GB RAM | 6 GB RAM |
| Mali-G76 MP5 GPU | Adreno 618 GPU |
| 9.27 | 9.27 |
| Storage | |
| 128 GB internal memory | 128 GB internal memory |
| microSDXC (up to 1000 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 15.38 | 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 (480 fps) (HD) slow motion video | -- |
| 11.55 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 10.7 | 6.7 |
| Battery Life | |
| 4500mAh Li - Polymer Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 6.32 | 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 Galaxy A51 5G is slightly better than the Galaxy M51, having a score of 90.8 against 87.7. Even though Galaxy A51 5G and Galaxy M51 were released with only a couple months difference, Galaxy A51 5G is somewhat lighter and just a little bit thinner. These phones work with Android OS, but Galaxy A51 5G has a newer 11 version while Galaxy M51 has Android 10 version.
The Galaxy A51 5G features a slightly better screen than Samsung Galaxy M51, because although it has a little smaller screen, it also counts with a just a little greater screen pixels density and a slightly better 1080 x 2400 pixels resolution. Samsung Galaxy M51 features a processor that's just as good as the Galaxy A51 5G one, both of them have a Octa-Core processing unit and 6 GB of RAM.
Samsung Galaxy M51 has a bit better camera than Galaxy A51 5G, and although they both have the same video frame rate and the same (4K) video definition, the Samsung Galaxy M51 also has a bigger diafragm aperture to take better photos in poorly lited environments, a bigger sensor taking better quality videos and pictures and a way better resolution camera.
The Galaxy A51 5G features a bit more memory capacity for games and applications than Samsung Galaxy M51, and although they both have equal 128 GB internal storage, the Galaxy A51 5G also has a slot for SD memory cards that admits a maximum of 1000 GB. The Samsung Galaxy M51 features a really longer battery lifetime than Galaxy A51 5G, because it has a 7000mAh battery capacity.
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