COROS Heart Rate Monitor Sandals breathable and durable materials built

breathable and durable materials built for in and around water

Memory foam collar

These super-secure

and chafe-free liner

COROS Heart Rate Monitor Sandals breathable and durable materials builtHRM GRY Comfortable 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. PRECISE