Oura faces lawsuit over sleep-tracking accuracy claims

Oura is facing a proposed class-action lawsuit in California alleging that its smart rings overstate the accuracy of sleep-stage tracking.

The complaint claims Oura relies on AI to estimate sleep stages rather than directly measuring them, and cites a 2025 study that found only 53.18% accuracy. The lawsuit seeks to stop what it calls misleading advertising and recover money for affected customers.

Source: Android Authority

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