The iPhone 5 is a touchscreen-based smartphone developed by Apple Inc.. It is the sixth generation of the iPhone and succeeds theiPhone 4S. The phone is a slimmer, lighter model that introduces a higher-resolution, 4-inch screen to the series with 16:9 widescreenaspect ratio. The phone also includes a custom-designed ARMv7 processor called the Apple A6, an update to Apple's mobile operating system known as iOS 6, and support for LTE.
Apple held an event to formally introduce the phone on September 12, 2012. Apple began taking pre-orders on September 14, 2012, and over two million were received within 24 hours. Initial demand for the iPhone 5 exceeded the supply available at launch on September 21, 2012, and has been described by Apple as "extraordinary", with pre-orders having sold twenty times faster than its predecessors. Following the launch, Samsung filed a lawsuit against Apple, claiming that the iPhone 5 infringes eight of its patents.
While reception to the iPhone 5 has been generally positive, the new Maps application featured on iOS 6 was negatively received and was reported to contain many serious errors. Consumers and reviewers have noted hardware issues, such as an unintended purple hue in photos taken by the iPhone 5, the phone's coating being prone to chipping, and the presence of light leaks on white variants of the device. Incompatibilities with LTE networks in some regions have also been noted.
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