More to explore:
Amazon.com: Polar FT4 Heart Rate Monitor (Pink/Purple): Sports & Outdoors
FT60 Fitness Watch with Heart Rate Monitor | Polar USA getting this stat!
Amazon.com: Sigma PC3.11 Heart Rate Monitor (Green): Sports & Outdoors
10 Things I learned from my heart rate monitor
Custom heart rate max calculator
The affordable Garmin Forerunner 10 GPS fitness monitor—style, performance and user-friendly function.
Really good Cardio workout! You can do this in the comfort of your own home and it really gets your heart pumping! AV ♥ #Cardio #Workout
want a heart ring