GARMIN® HRM4-RUN™ :: Take your performance to the next level by adding your most advanced running metrics to the high-end Forerunner® watches with the Garmin® HRM4-Run™ Heart Rate Monitor. You'll be amazed by the comfort of this heart rate monitor, thanks to its small, lightweight module that fits entirely within the width of the seamlessly comfortable non-slip strap, awhile providing advanced heart rate features such as VO2 max, lactate threshold, recovery time estimates, stress score, performance condition, and predicted race times. Plus, you'll also be able to track numerous key running dynamics metrics, including cadence, vertical oscillation, ground contact time, vertical ratio, stride length, left/right ground contact time balance and more. Trust us, if you're serious about boosting your running performance, you definitely need to add the Garmin® HRM4-Run™ Heart Rate Monitor to your training regimen.
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