| Global Score | |
| 75.4 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 4.4.4 | Android 10 |
| 2015-01-11 | 2020-09-11 |
| 5.94 x 3.00 x 0.25 inches | 6.45 x 3.00 x 0.37 inches |
| 4.97 ounces | 7.51 ounces |
| Blue, Gold and White | Black and White |
| Metal | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 360.00 | -- |
| Display / Screen | |
| 5.5 inches | 6.7 inches |
| 1080 x 1920 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED Plus |
| 401 pixels per inch | 385 pixels per inch |
| Capacitive, Multi-touch | No touch screen |
| 9 | 8 |
| Performance | |
| Qualcomm Snapdragon 615 8939 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| 64-bit ARM Cortex-A53 (Quad-Core 1500 MHz + Quad-Core 1000 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 2 GB (800 MHz) RAM | 6 GB RAM |
| Adreno 405 (500 MHz) GPU | Adreno 618 GPU |
| 9.45 | 9.27 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSD, microSDHC, microSDXC (up to 64 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 6.16 | 14.14 |
| Camera | |
| 13.00 MP + 5.00 MP | 64.00 MP + 32.00 MP |
| -- | 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 |
| 8.03 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA, HSUPA, EDGE, GPRS and GSM | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM, Dual SIM | Nano SIM, Dual SIM |
| 7 | 6.7 |
| Battery Life | |
| 2600mAh Li-Ion Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 17 hours talk time | -- |
| 4.56 | 8.32 |
| Other Features | |
| Bluetooth 4.0 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
The Samsung Galaxy M51 has a score of 87.7, which is much better than the Galaxy A7's overall score of 75.4. Both phones in our current comparison include Android operating system, but the Samsung Galaxy M51 has the older 10 version and Galaxy A7 has Android 4.4.4 version. Samsung Galaxy M51 is a much newer cellphone than Galaxy A7, although it is notably heavier and thicker.
The Galaxy A7 features a little bit better performance than Galaxy M51, because although it has a smaller amount of RAM memory, and they both have the same number of cores, the Galaxy A7 also counts with a 64-bit CPU and a graphics processor. The Galaxy A7 has a brighter screen than Galaxy M51, because although it has a quite smaller display and a bit lower 1920 x 1080 pixels resolution, it also counts with a just a bit more pixels per inch in the screen.
Galaxy M51 shoots much clearer photographs and videos than Galaxy A7, because it has a way higher 3840x2160 (4K) video quality and a way higher resolution camera in the back. The Galaxy M51 counts with much more memory for games and applications than Galaxy A7, because it has an external SD slot that supports a maximum of 512 GB and 112 GB more internal storage.
The Samsung Galaxy M51 features a really longer battery lifetime than Galaxy A7, because it has 7000mAh of battery capacity against 2600mAh.
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