Macotakara notes that it is very similar to the iPhone 5's; however, the screw hole position is different.
In the printed circuit board, such as chip has not been implemented, but it is felt that the impression that has not changed is the main processor size, customization of the controller chip type the accompanying advances, mounting number of chips, such as has decreased.
Just a few days ago, TVC-Mall posted parts claiming to be the dock connector, headphone jack, and loud speaker for the iPhone 5S. Apple is predicted to be releasing an update to its iPhone hardware this fall.
Take a look at the photos below...