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All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Gizmodo may earn an affiliate commission. Reading time 7 minutes ...

Polar Launches Whoop-Like Screenless Fitness Tracker, No Subscription Needed The Polar Loop monitors activity, sleep, and heart rate in a design familiarized by Whoop. The key difference is a one-time ...

Experts note that implantable loop recorders are valuable for detecting infrequent arrhythmias and guiding anticoagulation decisions post-cryptogenic stroke or atrial fibrillation ablation, but due to ...

Our team tests, rates, and reviews more than 1,500 products each year to help you make better buying decisions and get more from technology. The Polar Loop is a simple, screenless fitness-tracking ...