Apple’s “S” upgrades to their iPhone line don’t really make changes to how the phone looks but instead upgrades the processor, GPU, camera, etc. Recently some images of some supposed iPhone 5S back panels have surfaced on the internet that could point towards what the aforementioned upgrades would be.
The images were spotted by EXP Review on Chinese Social Network Weibo. An NFC chip was spotted along with a confirmation that the iPhone 5S will have the same resolution as the iPhone 5 i.e 1136 x 640. The source also believes that Apple will put in better graphics, processor, a Fingerprint reader and a better camera in the iPhone 5S.
Apple is planning to release the iPhone 5S this September so be ready for tons of leaks till then.