As expected, iFixit has posted its complete teardown of the iPhone 6s and iPhone 6 Plus, confirming some specs while revealing a few new insights. As expected, both devices have the same general outward appearance, although the 6s is a hair larger than the 6, but only by a millimeter or two in each dimension. The iPhone 6s is stamped with a new model number, A1688, while the 6s Plus gets A1687. The new 7000 series aluminum alloy is a noticeable change…