Compare phones
| Global Score | |
| 72.7 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 10 |
| 2018-06-29 | 2020-09-11 |
| 6.03 x 3.00 x 0.34 inches | 6.45 x 3.00 x 0.37 inches |
| 6.38 ounces | 7.51 ounces |
| 16 777 216 | Black and White |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| Display / Screen | |
| 5.5 inches | 6.7 inches |
| 1280 x 720 pixels (HD) | 2340 x 1080 pixels |
| TFT | Super AMOLED Plus |
| 267 pixels per inch | 385 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8 |
| Performance | |
| Samsung Exynos 7 Octa 7884 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 |
| 2 GB RAM | 6 GB RAM |
| Mali-T830 MP1 GPU | Adreno 618 GPU |
| 8.73 | 9.27 |
| Storage | |
| 32 GB internal memory | 128 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | microSDXC (up to 512 GB) external memory slot |
| 9.44 | 14.14 |
| Camera | |
| 13.00 MP + 13.00 MP | 64.00 MP + 32.00 MP |
| f/1.70 aperture | f/1.80 aperture |
| 28.00mm focal length | 26.00mm focal length |
| 0.33 inches (1/3.06") sensor | 0.57 inches (1/1.76") sensor |
| 1920 x 1080 (30 fps) (Full HD) video resolution | 3840 x 2160 (30 fps) (4K) video resolution |
| 9.13 | 11.88 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE-A (4G), LTE (4G), HSPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.3 | 6.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 7000mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| 5.28 | 8.32 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Samsung Galaxy M51 has a general score of 87.7, which is a lot better than Galaxy J7 Refine's 72.7 general score. Both phones in this comparison review work with Android OS (operating system), but the Samsung Galaxy M51 has older 10 version while Galaxy J7 Refine has Android 8.0 Oreo version. The Samsung Galaxy M51 construction is noticeably newer, but heavier and a bit thicker than the Galaxy J7 Refine.
The Galaxy M51 counts with just a bit better processing power than Galaxy J7 Refine, and although they both have the same number of cores, the Galaxy M51 also has a higher amount of RAM. Galaxy M51 features a much better looking display than Samsung Galaxy J7 Refine, because it has a greater pixel density, a bigger screen and a much better 1080 x 2340 pixels resolution.
The Samsung Galaxy M51 counts with a lot better camera than Galaxy J7 Refine, because although it has a tinier diafragm aperture which is not recommended for low-light photos and videos, it also counts with a lot bigger sensor which offers a much higher image and video quality, a much more megapixels camera and a way higher 3840x2160 video quality.
The Galaxy M51 features a way bigger storage capacity to store more apps and games than Galaxy J7 Refine, because it has a slot for an external memory card that supports a maximum of 512 GB and 128 GB internal storage capacity. The Galaxy M51 features a much better battery lifetime than Samsung Galaxy J7 Refine, because it has a 7000mAh battery size instead of 3300mAh.
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