Suunto: Incorrect Heart Rate on PM4 Confirm Screen Due to a design change in Suunto heart rate belts, the PM4 may show an incorrect heart rate on the PM4 Confirm screen; however, the proper heart rate values should be shown when rowing or skiing. Heart Rate Inconsistent with Other Garmin Devices Heart Rate Intermittent Incorrect or No Heart Rate PM Cannot Find Chest Belt Suunto: Incorrect Heart Rate on PM4 Confirm Screen
