I have a lot of these, see other sizes if needed These are damaged box, opened but unused. The Polar H10 Heart Rate Monitor is a small chest Bluetooth sensor designed for sports enthusiasts. With a waterproof and breathable design, it offers accurate heart rate monitoring during fitness activities. Available in various sizes and featuring cotton for maximum comfort, this black HR sensor is a reliable tool for tracking and improving cardiovascular performance in running, yoga, and other workouts. Compatible with the Polar brand, the H10 model ensures a secure fit and real-time data for a personalised fitness experience.
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