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 5 of sound produced is poor. AT&T, Verizon, and Sprint offer LTE access in the US, while in the UK, only EE and Three are able to offer LTE access. On March 26, 2013, T-Mobile announced they would begin carrying the iPhone 5, making it the first iPhone to be available on all four nationwide carriers in the United States. The T-Mobile version of the iPhone features a modified version of the A1428 iPhone 5 model enabling Advanced Wireless Services (AWS) support. All carriers in Canada selling the have their own LTE networks, including Rogers Wireless, Fido Solutions, Bell Mobility, Virgin