How accurate are sleep trackers? Lawsuit says Oura rings have 'a coin flip's chance of being correct'

Génération-NT

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The Finnish company Oura Health is subject to a complaint in the United States. Users accuse its connected ring of providing unreliable sleep data, far from the 95% precision advanced by the brand. The legal action argues that the device is based on algorithmic estimates rather than on real physiological measures, calling its reliability as a "cell or face".

chip.de

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A well-known smart ring manufacturer is to be brought to justice. The company Oura is accused of having dramatically exaggerated the precision of its sleep detection through artificial intelligence.