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 5S 5S "is not a required upgrade, but it's easily the fastest and most advanced Apple smartphone to date." Although praised for its camera, 64-bit A7 chip, M7 motion-chip, and fingerprint scanning capabilities, some investors thought that the iPhone 5S, although a notable improvement over the iPhone 5, was still relatively unchanged from its predecessor, and worried that the iPhone line had become a stagnant, dull product. Apple's share price fell 5.4% after the launch to close at a month low of $467.71 on the NASDAQ. Darrell Etherington of TechCrunch who praised the iPhone 5S as the best smartphone available said