Heart Rate Monitor Watches

Amazon.com

Featuring a new, slim design, the F4 is Polar’s first heart rate monitor designed specifically for women. It’s packed with innovative training features to help you toward your exercise goals, including:Zone Pointer: A visible and audible feature on the display of your heart rate monitor showing your target heart rate zone and where your current heart rate is within that zone. Polar OwnCal: Shows your energy expenditure during one exercise session as well as your accu (more…)