First off, the device has a pill-shaped dual camera lens system at the top, following closely to rumors and leaks we've seen. Secondly, also following rumors, the antenna bands at the top and bottom of the iPhone have been completely removed.
Finally, the most interesting detail of the picture is what looks to be a Smart Connector at the bottom of the device. The iPad Pro is currently the only device with a Smart Connector, but this photo shows that it might be coming to other iOS devices. If Apple does in fact make two separate iPhone 7 Plus models, a Smart Connector and dual lens camera could be huge differentiators.
