Development of Apple’s iPhone devices

The iPhone devices is a series of smartphones developed and launched by Apple Inc. The first iPhone was unveiled on June 29th, 2007, then Apple released iPhone 3G, iPhone 3GS, iPhone 4, iPhone 4S and iPhone 5. Accompany with the release of every iPhone, Apple’s iOS operating system is developed from iOS 1 to now the iOS 6, which is claimed by Apple as the world’s most advanced mobile operating system.

Every update of iPhone is a breakthrough and every time it can bring us the big surprise. Now the new iPhone has more special and powerful features and specs. If you want to get more detailed comparison among these Apple’s iPhone devices, please click to get more.

Note: the “S” of iPhone 3GS and iPhone 4S stands for the speed, which means the device had much faster parsing and working speed than its predecessor.

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