Lab or Wearable, That Is the Question: How Do I Know My VO2max Is Right?
A watch does not measure your VO2max, it estimates it. Why that estimate is surprisingly good for recreational athletes and misses for the very best.
6 articles
A watch does not measure your VO2max, it estimates it. Why that estimate is surprisingly good for recreational athletes and misses for the very best.
Whoop says rest day, Garmin says threshold training. Why wearables contradict each other, and why your measurement method matters more than who is right.

On many Garmin watches HRV recording is off by default and gets reset by firmware updates. Here is how to enable it so obseed can analyse your HRV.
Comparing HRV apps for runners, cyclists, and triathletes: how obseed, HRV4Training, Elite HRV, WHOOP, and Garmin Connect stack up on metrics and value.
Sleep tracking accuracy and metrics of Garmin, Oura Ring, and WHOOP compared. Which device gives endurance athletes the most useful sleep insights?
60+ HRV metrics across 9 physiological categories from your wearable: Poincaré, DFA alpha-1, multiscale entropy, personal baseline, and 15-page reports.
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