The design looks pretty comfortable, and not much different from the original Samsung design we are used to see. The display is said to be 5.5-inches with Super AMOLED display, and the resolution itself got bumped to 1080p. Going by this leak, it seems that Samsung has also retained most of the hardware as well. They have also might bumped up some aspects of the device.
On this link, you can watch the video of the Galaxy J7’s 3D rendering. Enjoy.