German blog Giga Apple claims to have renderings showing the iPhone 7s will be about 0.1mm larger than the iPhone 7 on all sides, possibly complicating the use of existing cases despite keeping mostly the same form factor. Apple made a similar move with the change to the iPhone 6s from the iPhone 6, slightly increasing the size of the device to add 3D Touch capabilities. This time around it’s possible the addition of glass backings could be…