We chose the most important tech products of the year in each major gadget category. These winners are the true game-changers of 2011.

The iPhone 4S is the ultimate comeback kid. Despite showing up four months later than expected and in the wake of endless iPhone 5 rumors, the iPhone 4S continues to outsell any other phone in the United States.
We love this phone–especially its blazing A5 processor and point-and-shoot-killing camera–and the iPhone 4S’ voice-activated digital assistant, Siri, is a breakout cultural phenomenon.

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