It would appear that Apple is sticking to its iPhone business model as a plethora of images of the iPhone 5S have found there way to the Internet. While the phone will look nearly identical to the iPhone 5, it will bring along improved internals as well as a larger battery.
Macrumors has some information about the iPhone 5S including the image you see above; the new device will reportedly have a dual-flash for improved low-light photography. Along with the new flash setup, the phone will have an A7 chip inside and a larger battery.
Apple’s S line of phones have always been about internal improvement instead of a complete overhaul of the phone. Knowing this, these modest improvements fall in-line with expectations of the device.
The image at the top of this post is reportedly from December of 2012, so it stands that the dual-flash setup may not make it into the final shipping model.
The iPhone 5S will surely launch with iOS 7 that will be released this fall. It has also been rumored that Apple is currently working on a larger iPhone, but that device is not expected to arrive until sometime in 2014.