Compare phones
| Global Score | |
| 74.6 | 94.6 |
| Basic Information | |
| Samsung | Samsung |
| Android 8.0 Oreo | Android 11, 10 |
| -- | 2020-09-18 |
| 6.04 x 3.04 x 0.32 inches | 6.27 x 5.05 x 0.27 inches |
| 6.14 ounces | 9.95 ounces |
| 16 777 216 | Mystic black and Mystic bronze |
| Plastic | Aluminum and Glass |
| Scratch-Resistant Glass | -- |
| -- | $ 1930.00 |
| Display / Screen | |
| 5.5 inches | 7.6 inches |
| 1280 x 720 pixels (HD) | 2208 x 1768 pixels |
| Super AMOLED | 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 7884 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 |
| 4 GB RAM | 12 GB RAM |
| ARM Mali-G71 GPU | Adreno 650 GPU |
| 8.82 | 9.81 |
| Storage | |
| 32 GB internal memory | 256 GB internal memory |
| microSDXC (up to 256 GB) external memory slot | No SD card slot |
| 8.88 | 13.3 |
| Camera | |
| 13.00 MP + 8.00 MP | 12.00 MP + 10.00 MP |
| f/1.90 aperture | f/1.80 aperture |
| 27.00mm 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 |
| 9.02 | 10.45 |
| Networks | |
| Wi-Fi | Wi-Fi |
| Mobile Hotspot | Mobile Hotspot |
| LTE (4G), HSPA and HSUPA | 5G, 5G, LTE-A (4G), LTE (4G), HSPA+ (4G), HSDPA and HSUPA |
| Micro SIM, Dual SIM | Nano SIM, Dual SIM |
| 6.1 | 10.7 |
| Battery Life | |
| 3000mAh Battery | 4500mAh Battery |
| Removable Battery | Non-Removable Battery |
| -- | Wireless Charging |
| 4.96 | 6.32 |
| Other Features | |
| Bluetooth 5.0 | Bluetooth 5.0 |
| GPS | GPS |
| -- | NFC |
| Fingerprint ID Scanner | Fingerprint ID Scanner |
| Accelerometer, Light Sensor and Proximity Sensor | Accelerometer, Barometer, Compass, Gyroscope, Light Sensor and Proximity Sensor |
| FM Radio | -- |
Comparison review
Galaxy Z Fold 2 is way better than Galaxy J7 Duo, with a 94.6 score against 74.6. Both of these phones come with Android OS (operating system), but the Galaxy Z Fold 2 has the older 11 version while Galaxy J7 Duo has Android 8.0 Oreo version. Galaxy Z Fold 2's design is notably heavier but somewhat thinner than the Galaxy J7 Duo.
The Samsung Galaxy Z Fold 2 features a brighter screen than Samsung Galaxy J7 Duo, because it has more pixels per display inch, a lot larger display and a way better 1768 x 2208 resolution. Galaxy Z Fold 2 has a faster CPU than Samsung Galaxy J7 Duo, and although they both have 8 cores, the Galaxy Z Fold 2 also has a higher amount of RAM memory.
The Galaxy Z Fold 2 shoots much clearer photographs and videos than Samsung Galaxy J7 Duo, because although it has a less mega pixels resolution camera, it also counts with a lot bigger sensor providing a lot better image quality, a much higher 3840x2160 (4K) video quality and a bigger aperture to capture better captures in poorly lited situations.
Galaxy Z Fold 2 features a much greater memory for games and applications than Galaxy J7 Duo, because although it has no slot for external memory cards, it also counts with 256 GB internal memory capacity. The Samsung Galaxy Z Fold 2 has a much longer battery performance than Samsung Galaxy J7 Duo, because it has a 50 percent larger battery size.
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