
The Chest Strap Alternative.
The COROS Heart Rate Monitor tracks from your bicep for instant response to heart rate changes without gaps from sweat or movement. Connect to your watch, phone and gym equipment simultaneously. Clinical-grade precision in a 9.7 g package.

Better Heart Rate Tracking.
The COROS Heart Rate Monitor delivers accurate readings during weight training and hybrid workouts where wrist monitors fail. Transform your training from "good enough" to precision perfect.