Compare phones
| Global Score | |
| 73.1 | 87.7 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 10 |
| 2018-07-13 | 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 |
| Blue | Black and White |
| -- | Plastic and Plastic |
| Scratch-Resistant Glass | Scratch-Resistant Glass |
| $ 107.00 | -- |
| 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 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 |
| 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 (4G), HSPA+ (4G), HSDPA and HSUPA | LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 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 | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| -- | FM Radio |
Comparison review
Galaxy M51 is better than the Samsung Galaxy J7 Star, getting a general score of 87.7 against 73.1. Both devices in this comparison review work with Android OS (Operating System), but Galaxy M51 has older 10 version while Samsung Galaxy J7 Star has Android 9.0 Pie. Although the Galaxy M51 is a lot newer than the Samsung Galaxy J7 Star, it's somewhat heavier and just a little thicker.
The Samsung Galaxy M51 has a much better display than Galaxy J7 Star, because it has a lot better resolution of 1080 x 2340, a larger screen and a greater pixel quantity in each inch in the display. Samsung Galaxy M51 counts with a little faster CPU than Samsung Galaxy J7 Star, and although they both have 8 cores, the Samsung Galaxy M51 also has more RAM memory.
The Galaxy M51 shoots much better photographs and videos than Samsung Galaxy J7 Star, because although it has a tinier diafragm aperture which is worse for capturing images and video in poorly lited environments, it also counts with a camera with a much better 64 MP resolution, a way higher 3840x2160 (4K) video quality and a much larger back camera sensor.
Galaxy M51 counts with a lot bigger storage for apps and games than Galaxy J7 Star, because it has 96 GB more internal memory and a slot for an external memory card that admits up to 512 GB. The Galaxy M51 features a much better battery duration than Galaxy J7 Star, because it has a 7000mAh battery size.
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