IPhone 6 look blurry and initiated a replacement program. On September 9, 2015, with the release of the iPhone 6S and iPhone 6S Plus, the iPhone 6 and 6 Plus were moved to the mid-range of the iPhone lineup. The 128 GB versions of the iPhone 6 and iPhone 6 Plus was discontinued along with the gold version of both phones, but the 16 GB and 64 GB versions of the iPhone 6 and iPhone 6 Plus in silver and space gray remain available for sale at a reduced price. In June 2016, Apple faced a potential sales ban in China, as
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,