The iPhone 4S was first shipped with iOS 5, which was released on October 12, 2011, 2 days before the release of the device. The 4S uses iOS 5.1.1, which was released on May 7, 2012. As of September 2015, the device can be updated to iOS 9.

Processor:A5 Dual core 32bit


Camera:Rear Camera 8MP & Front Camera 0.3MP

Screen & Resolution:3.5 in & 960x640

Storage:8GB, 16GB, 64GB