The reading for VO2 max is absolutely incorrect. It would lead someone to believe that my pulmonary function is failing.
I exercise and run regularly so considered it wrong. I paid for a professional VO2 max test at my nearby university and discovered my true VO2 max which placed me in the 75th percentile for men aged 63. I am 73.
Whats wrong with this hardware? Any remedies? I like the device. . . Sort of.
Apple Watch Series 5, watchOS 10
Your Watch doesn't take V02 max readings. It estimates it from various other data. It's never going to be as accurate as a professional test.
The first thing to do to ensure you get the best possible estimate is make sure that all of your information is accurate.
Track your cardio fitness levels - Apple Support
But remember, it's still only going to be an estimate.
Did you try to do the 1-Mile Walk fitness test, to find out roughly what your VO2 is, if you compare it to the same walk recored by your Apple Watch?
You can set a distance goal doing an Outdoor Walking Workout app and then compare the results your Apple Watch recorded with those of the 1-Mile Walk fitness test page, according to your age group.
You should also let Apple know directly about this by using the Feedback link.
Feedback - Apple Watch - Apple
Somehow the VO2 estimate is not that accurate anymore since the latest watchOS upgrades.
I lost 5 points right after my birthday, just because I entered a new age group.
The chart associated with the test was useful. Since I took the actual treadmill test I don’t need the do-it-yourself approach. According to the Apple Watch artificial results I shouldn’t be very capable and under the care of a Pulmonologist. )9
Health ap on Apple Watch completely misreads VO2 max.
