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Tech review: The best fitness tracker

Tech review: The best fitness tracker

This post was done in partnership with The Wirecutter, a buyer’s guide to the best technology.

The $150 Fitbit Charge HR is the fitness tracker we'd recommend for most people. According to our tests — which included 60 hours of research and 10 days of real-world testing — the Charge HR is more accurate at counting steps than most other wrist-worn trackers, and it works seamlessly with Fitbit's popular social ecosystem. It has continuous heart-rate monitoring; automatically activated sleep tracking with vibrating alarms; and a...