Comment by timanderson

I have an Apple Watch 7 and a Garmin Forerunner 265. The Garmin gives me a much higher VO2Max. I have no idea which is right but one factor seems to be the max heart rate, which the Garmin calculates but in Apple Watch seems to be fixed based on age unless you set it manually. Reluctant to set it manually as it will change over time and would neeed re-calculating so the Garmin approach seems better to me.