VO 2 max is validated for users 20 and older.

It can estimate your VO 2 max if you start one of those workouts in the Workouts app Apple Watch can record an estimated VO 2 between 14 and 60 mL/kg/min when you do a brisk hike, walk, or run outdoors with persistent heart rate measurement.You won’t see cardio fitness data for every workout recorded with Apple Watch, here’s what Apple says:.How to measure cardio fitness with Apple Watch Now you’ll see cardio fitness show up under the Heart section in the Health app.You can choose to turn Low Cardio Fitness Notifications.Follow the prompts like confirming your health details (must be at least 20 years old).Tap Summaryand swipe down near the bottom and look for Cardio Fitness (under “Get More From Health” – you can also look under Browse > Heart > Cardio Fitness).If you haven’t set it up before, open the Health app on your iPhone.How to use cardio fitness Apple Watch and iPhone Setup (Apple Watch Series 3 or later required) Review: Withings Body Cardio smart scale with Apple Health now features Vascular Age.What is HRV and how can you track/use it with Apple Watch and iPhone?.Two more valuable ways to track heart health are heart rate variability (HRV) and the Withings “Vascular Age” feature on its latest Body Cardio smart scale. The reason it’s an accurate indicator of overall health is that cardio fitness is based on measuring the “body’s ability to take in, circulate, and use oxygen.” While there’s a correlation between low cardio fitness levels and future health issues, you’ve got the power to raise your levels with consistent and more intense aerobic exercise 🙂. Your cardio fitness level is a strong indicator of your overall physical health and a predictor of your long-term health.” “Cardio fitness is a measurement of your VO 2 max, which is the maximum amount of oxygen your body can consume during exercise. Whether you’ve just recently gotten an Apple Watch or have had one for a while and haven’t used cardio fitness, it’s a valuable measurement to understand and use. How to view cardio fitness levels on iPhone.How to measure cardio fitness with Apple Watch.Setup (Apple Watch Series 3 or later required).How to use cardio fitness Apple Watch and iPhone.

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