GoKawiilOura hit with lawsuit alleging sleep-tracking ring is barely more accurate than a coin flip
A class action lawsuit filed against Oura claims the company misled consumers about the accuracy of its smart ring's sleep-stage tracking. The suit argues Oura lacks sensors for brain waves, eye movement, and muscle activity needed to properly detect sleep stages, and instead relies on AI guesswork from heart rate, temperature, and breathing data. The named plaintiff, who paid $503 for the ring, says she was overcharged for a device that doesn't deliver the accuracy Oura advertises.