Is This an iPhone 5S Prototype? [Rumor]
![Is This an iPhone 5S Prototype? [Rumor] Is This an iPhone 5S Prototype? [Rumor]](https://technabob.com/blog/wp-content/uploads/2013/04/iphone-5s-alleged-prototype-600x500.jpg)
We know by now that Apple has adopted a more-or-less annual update cycle for the iPhone. In between major revisions, we’ve seen the company release “S” versions that feature upgrades to the previous version’s internal hardware.