It is very likely that what you see in the video is a basic reproduction Shell iPhone in July and rumors based on technical drawings instead of being a fully assembled and functional device.
In the video of 30 seconds it is achieved see that the iPhone 7 has two speaker grilles and a Lightning connector, and not an output minijack for headphones.
Reengineered bands antenna can be seen on the back of the device, next to a hole larger chamber now has a curvature which replaces the metal ring around the camera lens that excels in the number of iPhone 6 / 6s .
The larger hole could indicate the inclusion of a better sensor to take pictures of more or it could let in more light, increasing the quality of photography made in low light.
Photos that seem to represent three models of iPhone, the iPhone base model 4.7 - inch 7, the Plus model 5.5 - inch and 5.5 - inch Pro unit, generating doubts between the pubic about the possibility of recently leaked that the Cupertino company serve three smartphone models this year.
The doubts soon vanished and released a report that Apple would release only two models of iPhone 7 in September, calling them the codenames of "Sonora" and "Dos Palos".