Will My Optical Heart Rate Sensor Be Accurate if I Have a Pacemaker or ICD?

WARNING: The data and information provided by Garmin wearables is intended to be a close estimation of your activity and metrics tracked, but may not be precisely accurate. Garmin wearables are not medical devices, and the data provided by them is not intended to be utilized for medical purposes and is not intended to diagnose, treat, cure, or prevent any disease. Garmin recommends you consult your doctor before engaging in any exercise routine. For more information see: Activity Tracking and Fitness Metric Accuracy.

Pacemakers or ICD should not impact the accuracy of Garmin Optical Heart sensor, but we cannot guarantee the accuracy of the heart rate data from our Optical Heart Rate Sensor if you have a pacemaker or ICD or other heart condition. Watches that use Heart Rate Variability (HRV) may not be able to accurately calculate that data or related metrics, such as sleep, if you have a pacemaker, ICD, or other heart condition.