Heart rate monitors

Heart rate monitors revolutionized endurance sports training when it was introduced. The most advanced models of today can give you estimates on how long you need to rest after your previous exercise, and can monitor your body’s strain and stress levels.Heart rate monitors revolutionized endurance sports training when it was introduced. The most advanced models of today can give you estimates on how long you need to rest after your previous exercise, and can monitor your body’s strain and stress levels. Top models also record your routes and height data.