NEVER MISS A BEAT — Whether you’re training indoors or out, the HRM-Pro Plus heart rate strap provides the accurate data you need to push limits and reach goals. HRM-Pro Plus transmits real-time heart rate data to compatible devices, equipment and apps. Now with a tool-free door makes changing your battery easy, plus get up to 1 year of battery life. Connect to your compatible Garmin® smartwatch, and get pace and distance data for your indoor runs. No, it’s not just a heart rate monitor. Running dynamics also help you improve your form (requires compatible Garmin® smartwatch). Not wearing your watch? HRM-Pro Plus captures steps, calories burned, intensity minutes and more.