Smartphones Count Steps Just as Well as Fitness Trackers, Study Shows

A new study conducted by The University of Pennsylvania found that smartphones are just as accurate as wrist-bound fitness trackers in detecting steps and daily activity. The study had healthy adults walking on treadmills with a variety of devices: a waistband with one pedometer and two accelerometers, three fitness trackers on their wrists and two smartphones in their pockets running activity …

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