IPhone 6 a byproduct of this lack of rigidity, the touchscreen's internal hardware being susceptible to losing its connection to the phone's logic board (nicknamed "Touch Disease"). The iPhone 6 Plus was also the subject of camera issues, including some devices with malfunctioning optical image stabilization or otherwise defects on rear cameras. The iPhone 6 and 6 Plus were moved to the midrange spot in Apple's iPhone lineup when the iPhone 6S and 6S Plus were released in September 2015. The iPhone 6 and 6 Plus were discontinued in most countries on September 7, 2016 when Apple announced the iPhone 7 and
IPhone 4S The uses a dual-core model that is integrated with the Apple A5 SoC in the same way as the iPad 2. Apple claims that the has up to seven times faster graphics than the iPhone 4; this was corroborated by Epic Games president Mike Capps. The has 512 MB of DDR2 RAM. Maximum available storage size increased to 64 GB while the 32 GB and 16 GB model options were retained. The screen is the same as the prior generation iPhones; , 640×960 resolution (Apple's "retina" design). There was an improvement in interactive multimedia applications compared to its predecessor. The