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 7 on the iPhone 7 Plus model to provide enhanced zoom capabilities. Reception of the iPhone 7 was mixed. Although reviewers noted the improvements to the camera, especially the dual rear camera on the Plus model, they also stated that the iPhone 7 did not make significant changes to the display or build quality, where competing flagship smartphones surpassed the quality of the iPhone 7. Many reviews highlighted the controversial removal of the 3.5 mm headphone jack; some critics argued that the change was meant to bolster licensing of the proprietary Lightning connector and the sales of Apple's own wireless headphone