Getting Your VO2 Max. Estimate for Running
Before you can view your VO2 max. estimate, you must put on the heart rate monitor and pair it with your device (Pairing ANT+® Sensors). If your fēnix® 3 device was packaged with a heart rate monitor, the devices are already paired. For the most accurate estimate, complete the user profile setup (Setting Up Your User Profile), and set your maximum heart rate (Setting Your Heart Rate Zones).