Taken as a whole, the studies suggest that the Garmin methodology can give you a VO2 max estimate within about 5 percent of your true value. https://www.runnersworld.com/gear/a20856601/can-your-watch-estimate-your-vo2-max/
另一篇文章說誤差大小受最大心率的準確度的影響。https://sportcoaching.co.nz/how-does-garmin-calculate-vo2-max/