Apple Watch Series 9 VO2 Max and Respiratory Health Review: Cardio Fitness Tracking for the General Population
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Apple Watch Series 9 VO2 Max and Respiratory Health Review: Cardio Fitness Tracking for the General Population

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 of population health has always been reach. A clinical VO2 max test costs $150 to $300, requires a specialized facility, and takes 30 to 45…

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

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 of all cause mortality ever identified. That is not an overstatement. A 2018 study published in JAMA Network Open by Mandsager et al. examined 122,007…