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
IPhone X IPhone X iPhone X (Roman numeral "X" pronounced "ten", although colloquially, sometimes pronounced as the name of the letter) is a smartphone designed, developed, and marketed by Apple Inc. It was the eleventh generation of the iPhone. It was announced on September 12, 2017, alongside the iPhone 8 and iPhone 8 Plus, at the Steve Jobs Theater in the Apple Park campus. The phone was released on November 3, 2017, marking the iPhone series' tenth anniversary. The iPhone X is intended to showcase what Apple considers technology of the future, specifically adopting OLED screen technology for the first time in