A Single Infrared Sensor Might Be the Reason Why Siri Is Only on the iPhone 4S [Video]

When iFixit originally tore down the iPhone 4S, they discovered a sensor whose function they were unsure of. Now they've determined that its an infrared sensor tasked with activating Siri when the phone is held up to your ear. Could it be the reason why Siri is a 4S exclusive? More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/gqE_cSdVzBI/a-single-infrared-sensor-might-be-the-reason-why-siri-is-only-on-the-iphone-4s

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