IPhone 6 the display. To accommodate the larger physical size of the iPhone 6 and iPhone 6 Plus, the power button was moved to the side of the phone instead of the top to improve its accessibility. The iPhone 6 features a 6.91 Wh (1810 mAh) battery, while the iPhone 6 Plus features an 11.1 Wh (2915 mAh) battery. Unlike the previous model, the rear-facing camera is not flush with the rear of the device, but instead protrudes slightly. Both models include an Apple A8 system-on-chip, and an M8 motion co-processor—an update of the M7 chip from the iPhone 5s. The primary
IPhone (1st generation) added these features. iPhone OS 2 was released on July 11, 2008, around the same time as the release of the iPhone 3G, and introduced third-party applications, Microsoft Exchange support, push e-mail, and other enhancements. iPhone OS 3 was released on June 17, 2009, and introduced copy and paste functionality, Spotlight search for the home screen, and new features for the YouTube app. iPhone OS 3 was available for the original iPhone as well as the iPhone 3G. However, not all features of iPhone OS 3 were supported on the original iPhone. iPhone OS 3.1.3 was the last version of