This patent reveals that Nike may have invented a 'smart' running shoe
2016-01-05T19:32:00Z Once hyped as the Next Big Thing, wearable fitness trackers like the Fitbit and Nike Fuelband have fallen off in popularity.
The main complaint is that they're just not that essential: If you walk five blocks from your apartment to realize that you forgot your tracker, you're probably not going to turn around to get it, and a 2014 report found that half of all people buy wearables no longer use them.
But what if the "
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