Earlier this year a new Samsung Galaxy phone with model number SM-J720F moniker appeared on GFXBench and GeekBench. According to leaks on GSMArena, the South Korean smartphone giant is expected to name its upcoming entry-level phone as Galaxy J7 Duo.
As the per the sources, some interested users send out bootloader screen which you will see once you power on the device. The device has 16:9 aspect ratio with 1280 x 720 pixels HD resolution.
The other pic shows that the phone will be powered by proprietary Exynos 7885 chipset and will be running on Android 8.0 Oreo out of the box with Treble support.
It will have the Samsung Experience UI 8.0, as seen in the system flash and kernel file.
The firmware version of the package is J720FDDU1ARCJ / J720FODM1ARCJ / J720FXXU1ARCB and that may not be the final version on the device when the phone ships.