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While there's no single "optimal" HRV score for any gender or age group, we do see certain patterns for average HRV in Oura member data.
The women’s health experts who developed Oura’s Fertile Window share the work and science behind the feature.
Discover the early days and evolution of Oura, beginning from our roots in Oulu, Finland in 2013.
With AI advancing faster than ever, Oura is committed to harnessing AI responsibly and empowering you with trustworthy, actionable insights that put you and your health first.
The researchers found Oura Ring detected 96.4% of ovulations with an average error of ±1.26 days—making it significantly more precise than the calendar method.
