Oura Adds Cardio Effort and VO2 Max Tracking Metrics
The Oura Ring now provides users with expanded fitness insights including heart rate intensity and aerobic capacity estimates.
Updated on Oct. 20, 2026 in Fitness
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Oura has introduced new Cardio Effort and VO2 max tracking features to its Oura Ring Gen3 and later devices. These metrics aim to provide users with a more detailed look at their cardiovascular fitness and workout performance.
Why it matters
Oura is launching these metrics to differentiate itself from competitors in the wearable technology space. These updates give users quantifiable data to monitor their heart health and training progress over time.
Users require at least 5 qualifying activities to receive a VO2 max estimate, which is measured in milliliters per kilogram per minute. Weekly Cardio Effort results are classified into categories ranging from Light to Reaching.
The players
Oura
Oura is a health technology company best known for producing the Oura Ring, a wearable device that tracks sleep, activity, and recovery metrics.
The details
Cardio Effort measures elevated heart rate relative to an individual's resting heart rate to calculate Workout and Weekly Cardio Effort scores. Additionally, the VO2 max feature, which is currently available via Oura Labs, relies on GPS-enabled workout data to assess aerobic capacity.
Timeline
October 20, 2026: Oura officially announced the launch of the two new fitness metrics.
The Big Picture
This update follows the industry trend set by established fitness tracking devices by adopting standardized aerobic capacity metrics. It effectively positions Oura to compete directly with existing heart rate and VO2 max tracking capabilities established by the Garmin VO2 max estimation protocol.
Users with compatible hardware can now monitor their weekly activity intensity through specific progress categories like Maintaining or Building. This change allows individuals to integrate data-driven feedback into their regular exercise routines without needing extra equipment.
The takeaway
Users should ensure they complete at least five GPS-tracked workouts to unlock their initial VO2 max estimate. Tracking weekly cardio effort levels can help you identify whether your current workout routine is appropriately aligned with your long-term fitness goals.
Further reading
Learn more about advancements in wearable health technology in our United States Fitness section.
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Do you believe tracking advanced fitness metrics actually improves your overall health and wellness?
