I started using my FR935 in November and have been running outside using the running app with GPS on several times a week. After every run, my VO2 max reading is the exact same. I'm assuming the unchanging number is an error and not an accurate estimate based on my HR, pace, etc.
I have entered my weight on multiple occasions as it has fluctuated up and down.
Am I missing a step? Is there further set up that is required to get the estimate to be reflective of various workouts?