With the POD 2 paired with your watch, you are able to complete a manual calibration within the watch settings. Your COROS POD 2 will automatically calibrate itself on your first runs and the manual step is not necessary but may help if you believe there to be any margin of error in the data measured from the POD 2.
1. From the watch menu, go to System > Accessories > Added List.
2. Select POD 2 and choose Tracking Calibration.
3. Rotate the POD 2 horizontally and vertically as shown on the watch display
4. Keep rotating for 20 to 30 seconds until you see a green checkmark appear.