A video posted by the website iPhone5parts.net examines the front panel of the forthcoming iPhone, giving detailed measurements in comparison to the iPhone 4S and noting other differences. Plus, the person testing the displays scratches both vigorously with a set of keys, with no marks at all appearing on the iPhone 5 screen but the iPhone 4S showing some scratches. This is clearly the real deal, and yet more evidence that the new iPhone will have a 4-inch display.