This genius watch measures your resting heart rate (collected while you take a five-minute break) and automatically builds a weekly training regimen. Then it tracks your progress and updates your workouts accordingly. www.polarusa.com
New perk: Easily find new routes and hidden gems, upcoming running events, and more near you. Your weekly Local Running Newsletter has everything you need to lace up! .
This genius watch measures your resting heart rate (collected while you take a five-minute break) and automatically builds a weekly training regimen. Then it tracks your progress and updates your workouts accordingly. www.polarusa.com