Peloton Heart Rate Band / size large. New in box, never used. Retail for $90. Sold out online. The Peloton heart rate band is one of the most interactive Peloton accessories. The Peloton heart rate monitor is designed to connect seamlessly to all Peloton products or other Bluetooth® compatible devices including phones, tablets, and other fitness apps. With easy-to-read rainbow LED lights and band vibrations, you can monitor your heart rate zone and track your Strive Score to optimize your performance. The Peloton heart rate monitor fits comfortably around your forearm and is IP67 waterproof, so it can be submerged in up to one meter of water—perfect for cleaning or your sweatiest workout.