Take 550, multiply by 1.726, divide by phi, and turn around in two circlesfiguring out your target heart rate zone can be a pain in the butt. Simplify this process with the Polar FS3 Heart Rate Monitor Watch.
Take 550, multiply by 1.726, divide by phi, and turn around in two circles—figuring out your target heart rate zone can be a pain in the butt. Simplify this process with the Polar FS3 Heart Rate Monitor Watch. This watch includes automatic age-base heart rate zones, so you can stay on track without having to do complicated math. The FS3 also includes extra large digits so you don't have to squint to see your exercise data. Record your exercise time, average heart rate, and maximum heart rate to keep your workout session in check. A backlight keeps this easy to read in low light.
Bottom Line: Simplify your life and workout with the Polar FS3 Heart Rate Monitor Watch.
