Simple step trackers are going the way of the dinosaur, as a new generation of fitness devices cram more sensors and smarts into smaller and smaller shapes. This next wave will track our movements in three dimensions—and that’s a crucial difference.
Why? Because the kind of vigorous exercise that really advances our health is multidimensional, too.
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To read the original article: New Fitness Trackers Will Record Every Breath You Take, Every Move You Make – ReadWrite
