COROS Heart Rate Monitor M Skyflow It mixes a lofty bed

It mixes a lofty bed of PWRRUN cushioning with propulsive SPEEDROLL Technology

known as DNA LOFT v2

An adjustable bungee waist helps tailor the fit while keeping unwanted elements out

with minor improvements that make a noticeable difference in comfort and fit

All you need is a Forerunner® 935 and 1 of these 3 accessories: HRM-Run™

COROS Heart Rate Monitor M Skyflow It mixes a lofty bedComfortable and simpler to wear than a chest strap. Easy to adjust the fit and remove the sensor for quick cleaning. Our latest multi channel optical sensor for precise measurement. Up to 3 simultaneous connections with Bluetooth enabled devices. Wear detection allows for automatic device pairing for new workouts. 38 hours of full operation or 80 days in standby mode on a single charge. Rechargeable with a magnetic USB charging cable.