Apple Watch Series 9 worn during a run for cardio fitness tracking
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Apple Watch Series 9 VO2 Max and Respiratory Health Review: Cardio Fitness Tracking for the General Population

ByThe Healthcare Discovery Team

Apple’s most popular wearable brings VO2 max estimation and respiratory rate tracking to hundreds of millions of wrists, democratizing a longevity metric that once required a laboratory visit. The challenge…

Garmin Forerunner 965 running watch product image
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Garmin Forerunner 965 Review: The Most Accurate Wrist Based VO2 Max Estimate for Serious Endurance Athletes

ByThe Healthcare Discovery Team

Garmin’s flagship running watch pairs Firstbeat analytics with an AMOLED display to deliver the most comprehensive wrist based cardiorespiratory fitness tracking available. VO2 max is the single most powerful predictor…