The Loop is meant to be worn 24/7, tracking your sleep as well as activities. That means it needs to be comfortable and look presentable, and I think it succeeds on both counts. The physical design of ...

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How resistant the watch is to submersion in water, as tested by subjecting the device to a water pressure equivalent to the depth the manufacturer claims the fitness tracker can withstand. The Polar ...

Combined with Polar Flow, a free online tracking service and app for iPhone that automatically syncs via Bluetooth® Smart, Polar Loop provides smart guidance on how to improve health and wellbeing by ...