Coros Heart Rate Monitor (Arm) full collection as well as drainage holes

as well as drainage holes to prevent moisture trapping

Engineered for athletes competing in middle distance track races

Three specific forms of magnesium for absorbability

Or use the loop and clip it for easy access

Coros Heart Rate Monitor (Arm) full collection as well as drainage holesComfortable 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.