Never miss a beat with the Garmin HRM-Pro Plus heart rate strap. With a soft and lightweight strap that lets you move freely and comfortably, the HRM-Pro Plus transmits real-time heart rate data as well as steps, calories burned, intensity minutes and more to your compatible Garmin watch, device or apps. Even when you’re out of range from your watch, the HRM-Pro Plus stores data during swims and other activities and then sends it to your compatible Garmin smartwatch once you’re back in range. This convenient device doesn’t only track your heart rate, though—when paired with your smartwatch, it can also track your running dynamics such as vertical oscillation, ground contact time, stride length, vertical ratio and more. Plus, you won’t have to worry about running out of juice in the middle of your workout. You get up to one year of battery life and the new tool-free battery door is easy to use when it’s time for a replacement. Whether you're training indoors or out, this heart rate monitor gives you the accurate data you need to safely push your limits and reach your goals.