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Amazon.com : Polar FT4 Heart Rate Monitor Watch (Silver / Black) : Best Heart Rate Monitor Watch Without Chest Strap For Men : Sports & Outdoors
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Amazon.com : Heart Rate Monitor, Calorie Counter, Fitness Activity Tracker & Sport Watch with Exercise Timers, Alarm, EL Backlight, Chronograph and Stopwatch - Chest Belt with Elastic Band & Polyurethane Fabric Strap -
