IPhone 5S Hong Kong, and Singapore. It was released in 25 additional countries on October 25, 2013, and in 12 countries on November 1, 2013. Indonesia was the last country to receive the iPhone 5S, on January 26, 2014. On September 19, 2014, the iPhone 5S was succeeded as Apple's flagship smartphone by the iPhone 6 and iPhone 6 Plus, but the older model remained available for purchase at a reduced price, while the 64GB version was discontinued. The gold edition of the iPhone 5S was discontinued on September 9, 2015, when Apple revealed the iPhone 6S and iPhone 6S Plus The
IPhone 4 supports up to iOS 7, released in September 2013. Due to the relatively aged hardware of the iPhone 4, certain features available on newer iPhone models are not available on the device; as of iOS 7, they include Siri, 3D maps and turn-by-turn navigation, AirDrop, AirPlay mirroring, live camera filters, panorama mode and certain visual effects introduced by iOS 7, such as the blurring of translucent interface elements, the parallax effect on the home screen, and live wallpapers. While still subject to the same limitations, iOS 7.1 did bring some slight performance improvements to the operating system on the iPhone