IPhone 3GS not implemented the HSUPA protocol). It was released in the United States, Canada, and six European countries on June 19, 2009, in Australia and Japan on June 26, and internationally in July and August 2009. The iPhone 3GS runs Apple's iOS operating system. It was succeeded as Apple's flagship smartphone in 2010 by the iPhone 4; however, the 3GS continued in production until September 2012 when the iPhone 5 was announced. The iPhone 3GS was made available for pre-order on June 7, 2009 and released on June 19 in the United States, Canada, and 7 European countries, and on June
IPhone 5S September 2016, replacing it and its A7 processor early meant that Apple "just reduced its long-term chip support window by a year" for iOS. In addition, a new iPhone launch was meant to stimulate demand, as sales of iPhone 6S and 6S Plus had not met expectations since their September 2015 release and the iPhone family was expected to suffer its first ever negative growth quarter in 2016. The iPhone 5S maintains a similar design to the iPhone 5, with a LCD multi-touch Retina display and a screen resolution of 640×1136 at 326 ppi. Its home button has been updated