IPhone 4S announced iPhone 5s and iPhone 5c. This was unusual for Apple as an upper case 'S' had been used since the introduction of the iPhone 3GS in 2009. On September 9, 2014, the iPhone 4S was officially discontinued following the reveal of the iPhone 6 and the iPhone 6 Plus. However, 4S production did continue for developing markets until February 17, 2016. On June 13, 2016, following the release of iOS 10, Apple dropped support on the iPhone 4S, making iOS 9.3.5 the last version available for the device. The runs iOS, Apple's mobile operating system. The user interface of
History of iPhone CDMA version of Apple's iPhone 4 during February 2011. Existing Verizon Wireless customers could pre-order iPhone on February 3. Pricing for the iPhone 4 was $199 for 16GB and $299 for 32GB. The Verizon iPhone 5 released on Friday, September 19, in the United States; The international release of iPhone has been staggered over several months. Today, the iPhone is available in most countries. Each iPhone normally prevents access to its media player and web features unless it has been activated as a phone through AT&T or O2. On July 3, 2007, Jon Lech Johansen reported on his blog that