Compare phones
| Global Score | |
| 73.1 | 94.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 9.0 Pie, 8.0 Oreo | Android 11, 10 |
| 2018-07-13 | 2020-09-18 |
| 6.03 x 3.00 x 0.34 inches | 6.27 x 5.05 x 0.27 inches |
| 6.38 ounces | 9.95 ounces |
| Blue | Mystic black and Mystic bronze |
| -- | Aluminum and Glass |
| Scratch-Resistant Glass | -- |
| $ 107.00 | $ 1930.00 |
| Display / Screen | |
| 5.5 inches | 7.6 inches |
| 1280 x 720 pixels (HD) | 2208 x 1768 pixels |
| TFT | Dynamic AMOLED |
| 267 pixels per inch | 372 pixels per inch |
| No touch screen | No touch screen |
| 7.1 | 8.1 |
| Performance | |
| Samsung Exynos 7 Octa 7870 chipset | Qualcomm Snapdragon 865+ SM8250-AB chipset |
| ARM Cortex-A53, 64-bit, 14 nm (Octa-Core 1600 MHz) processor | Kryo 585, 64-bit, 7 nm (Octa-Core 3100 MHz) processor |
| 2 GB RAM | 12 GB RAM |
| Mali-T830 MP1 GPU | Adreno 650 GPU |
| 8.73 | 9.81 |
| Storage | |
| 32 GB internal memory | 256 GB internal memory |
| microSDXC (up to 400 GB) external memory slot | No SD card slot |
| 9.44 | 13.3 |
| Camera | |
| 13.00 MP + 13.00 MP | 12.00 MP + 10.00 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 (60 fps) (4K) video resolution |
| -- | 1280 x 720 (960 fps) (HD) slow motion video |
| 9.13 | 10.45 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA+ (4G), HSDPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Nano SIM | Nano SIM, Dual SIM |
| 6.6 | 10.7 |
| Battery Life | |
| 3300mAh Li - Polymer Battery | 4500mAh Battery |
| Non-Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 5.28 | 6.32 |
| Other Features | |
| Bluetooth 4.2 | Bluetooth 5.0 |
| GPS | GPS |
| NFC | NFC |
| -- | Fingerprint ID Scanner |
| Accelerometer, Compass, Gyroscope, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
Comparison review
The Samsung Galaxy Z Fold 2 has a global score of 94.6, which is much better than the Galaxy J7 Star's score of 73.1. These phones use Android OS, but Samsung Galaxy Z Fold 2 has 11 version while Galaxy J7 Star has Android 9.0 Pie. Samsung Galaxy Z Fold 2 is a incredibly newer and a lot thinner phone than Galaxy J7 Star, but it is much heavier.
Samsung Galaxy Z Fold 2 has a brighter display than Galaxy J7 Star, because it has more pixels per inch in the screen, a lot better resolution of 1768 x 2208 pixels and a really bigger display. The Galaxy Z Fold 2 counts with a much greater storage capacity for games and applications than Galaxy J7 Star, because although it has no external memory slot, it also counts with 256 GB internal storage capacity.
Galaxy Z Fold 2 features a more powerful processor than Samsung Galaxy J7 Star, and although they both have the same number of cores, the Galaxy Z Fold 2 also has a greater amount of RAM memory. Galaxy Z Fold 2 has a superior camera than Galaxy J7 Star, because although it has a tinier camera aperture which is not recommended for low-light captures and videos and a back-facing camera with a worse resolution, it also counts with a way better 3840x2160 (4K) video quality and a lot bigger camera sensor.
The Samsung Galaxy Z Fold 2 has greater battery lifetime than Galaxy J7 Star, because it has a 4500mAh battery size against 3300mAh.
Although Samsung Galaxy Z Fold 2 is a better device, it costs a lot more money than the Samsung Galaxy J7 Star, and it doesn't have such a good quality/price relation as the Samsung Galaxy J7 Star. If you are trying to save some dollars, you can get the Samsung Galaxy J7 Star, and give up a couple features and specs, but you will get the most with your budget.
Disclaimer: As an Amazon Associate I earn from qualifying purchases.