IPhone in three sizes: 16, 32, and 64GB. The iPhone 5 and 5S were available in the same three sizes previously available to the iPhone 4S: 16, 32, and 64GB. The lower-cost iPhone 5C model was initially available in 16 and 32GB models; an 8GB model was added later. The iPhone 6 and 6S were available in three sizes at launch: 16, 64, and 128GB. The iPhone SE was available in 16 and 64GB variants at launch. When the iPhone 7 and 7 Plus were released, Apple changed the base model storage capacity from 16 to 32GB. Both the iPhone 7
IPhone 4 antenna issues, 72% of iPhone 4 users say that they are "very satisfied" with their iPhone 4 according to an August 2010 survey by ChangeWave Research. The iPhone 4 model continued to be sold unchanged up until September 2013. In 2011, two iPhone 4 units equipped with a special application were taken to the International Space Station aboard the Space Shuttle on the STS-135 mission. The devices were used in various experiments, utilizing sensors and a special app. IPhone 4 The iPhone 4 is a smartphone that was designed and marketed by Apple Inc. It is the fourth generation iPhone,