COROS Heart Rate Monitor 6mm The fit and upper design

The fit and upper design have also been refined

Laser-cut back pocket fits most phones

we’ve made a few game-changing updates

these aren't just sunglasses

3” solar charged display and 47 mm case

COROS Heart Rate Monitor 6mm The fit and upper designComfortable 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.