The newly leaked photos were published by Vietnamese site Tinhte and they show mockups that should correspond with the actual equipment.
The pictures show models of the iPhone 5S and iPhone 5C and come from Vietnamese accessory supplier PhukienGiare, the same source that previously released mockups of the iPad mini ahead of its launch.
The iPhone 5S in the pics appears to have the same design as the iPhone 5 but with a dual LED flash, in line with recent speculation.
The iPhone 5C appears with its rumored all-plastic design, but with a seemingly smaller Lightning connector.
In September, Apple is expected to bring two new smartphones on the market: the flagship iPhone 5S and a plastic model called iPhone 5C.