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The iphone is a line of smart phones designed and marketed by apple inc.
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The iphone 3G was internally similar but included several new hardware features.
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The iphone 4 introduced a new hardware design to the iphone line , incorperating and uninsulated stainless steel frame which doubles as an antenna.
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United States, Australia, Canada, the United Kingdom, France, Germany, and Japan, sales peaked over its predecessor with over a million sales in the first twenty-four hours of preorder availability.
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The iPhone 5 featured major design changes in comparison to its predecessor.
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The phone maintains a similar design to its predecessor, aside from the introduction of a new home button design using a laser-cut sapphire cover surrounded by a metallic ring, Touch ID, a fingerprint recognition system.
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The 5c runs on the latest iteration of the iOS operating system, iOS 7, which was announced at the company's Apple Worldwide Developers Conference (WWDC) 2013.