From accelerometers to UV light sensors and GPS systems, today's fitness bracelets are like miniature laboratories on your wrist. Here's how they gather data about your body - and translate it into real-world advice. The post What’s inside a fitness tracker, anyway? appeared first on Digital Trends.
From accelerometers to UV light sensors and GPS systems, today's fitness bracelets are like miniature laboratories on your wrist. Here's how they gather data about your body - and translate it into real-world advice. The post What’s inside a fitness tracker, anyway? appeared first on Digital Trends.
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