Lawsuit alleges Oura ring doesnt accurately track sleep

A new lawsuit against the fitness tracker Oura alleges that the rings can't accurately track sleep.

Smart ring maker Oura was hit Thursday with a proposed class action lawsuit alleging it misled customers about how accurately its $500 ring tracks sleep. Clarkson Law Firm filed the suit on behalf of Madison Surber, a California woman who says she paid roughly $514 for an Oura Ring 4 in May 2025. The complaint ...

The lawsuit, filed Thursday in California, alleges Oura's sleep-stage estimates are no better than a coin flip despite claims of 95% accuracy

The lawsuit alleges that Oura rings are unable to measure any of the physiological signals needed to assess sleep quality or determine sleep stages.

A proposed class-action lawsuit accuses the popular smart ring company of false advertisement.