Evolution of the iPhone

Published On: Oct 03 2011 01:49:57 PM CDT   Updated On: Sep 10 2015 09:11:56 AM CDT

iPhone 5S unveiled
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The 5S comes in metallic hues and features performance upgrades, including the first 64-bit chip in a smartphone. Apple's A7 has tested at up to twice as fast as the iPhone 5's processor. There's also a fingerprint scanner for security and a motion co-processor that will let the phone be used as a fitness tracker along the lines of a FitBit.

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