Compare phones
| Global Score | |
| 73.5 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 7.0 Nougat | Android 10 |
| 2017-07-01 | 2020-09-11 |
| 6.00 x 2.94 x 0.31 inches | 6.45 x 3.00 x 0.37 inches |
| 6.38 ounces | 7.51 ounces |
| Black, Gold, Rose gold and Silver | Black and White |
| Aluminum | Plastic and Plastic |
| -- | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.7 inches |
| 1920 x 1080 pixels (Full HD) | 2340 x 1080 pixels |
| Super AMOLED | Super AMOLED Plus |
| 401 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 7.9 | 8 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 730 SM7150-AA chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 470, 64-bit, 8 nm (Octa-Core 2200 MHz) processor |
| 3 GB RAM | 6 GB RAM |
| Mali-T830 MP2 GPU | Adreno 618 GPU |
| 8.73 | 9.27 |
| Storage | |
| 16 GB internal memory | 128 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 7.48 | 14.14 |
| Camera | |
| 13.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 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 |
| 9.02 | 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 | |
| 3600mAh Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.6 | 8.32 |
| Other Features | |
| Bluetooth 4.1 | 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
Samsung Galaxy M51 is much better than Galaxy J7 (2017), having a global score of 87.7 against 73.5. Both devices in this review include Android OS (Operating System), but the Samsung Galaxy M51 has 10 version while Galaxy J7 (2017) has Android 9.0 Pie version. The Samsung Galaxy M51 design is incredibly newer than Galaxy J7 (2017)'s, but it is heavier and somewhat thicker.
Samsung Galaxy M51 counts with a slightly better looking screen than Samsung Galaxy J7 (2017), because although it has a little bit inferior number of pixels per inch of display, it also counts with a larger screen and a bit higher resolution of 1080 x 2340 pixels. The Galaxy M51 has a little better hardware performance than Galaxy J7 (2017), and although they both have 8 cpu cores, the Galaxy M51 also has a higher amount of RAM.
The Samsung Galaxy M51 has a much better camera than Samsung Galaxy J7 (2017), because although it has a smaller camera aperture which is not recommended for shooting photos or video in low-light environments, it also counts with a back-facing camera with a lot better 64 mega pixels resolution and a way better 3840x2160 (4K) video resolution.
The Samsung Galaxy M51 counts with a superior storage for games and applications than Samsung Galaxy J7 (2017), because it has 112 GB more internal memory capacity and a slot for external memory cards that allows a maximum of 512 GB. The Samsung Galaxy M51 has a much longer battery lifetime than Samsung Galaxy J7 (2017), because it has a 7000mAh battery capacity instead of 3600mAh.
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