COROS Heart Rate Monitor W 840v1 Clifton 9: The Clifton 9

Clifton 9: The Clifton 9 continues with a similar aesthetic but with subtle updates that give it a more streamlined and polished look

athletic fit offers a complete range of motion without feeling too tight

4D Guidance System provides innovative protection for every type of runner

Stingrays are friends

COROS Heart Rate Monitor W 840v1 Clifton 9: The Clifton 9Comfortable 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.