Garmin fēnix 5: Advanced Features

With the addition of a Garmin Running Dynamics Pod or a compatible heart rate strap, the fēnix 5 series can track detailed running dynamics as well as physiological data that can help you improve your form and monitor how your body is performing from activity to activity. [link: http://ift.tt/2iHUKCs]
by Garmin via Endless Supplies .Mx - Brands