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 XR hours longer than its direct predecessor, the iPhone 8 Plus, most likely due to the lower resolution display and removal of 3D Touch. The XR has a similar design to the iPhone X and iPhone XS. However, it has larger bezels (due to limitations with the LCD), an aluminum frame, and is available in a wide variety of colors. Similar to other X-branded iPhones, all models come with a black front. The XR has an IP67 rating for dust and water resistance, which means it can take up to 1 meter for 30 minutes. The XR has similar hardware to