Your Oura Ring can’t measure what’s going on in your skull

<figure> <img alt="" data-caption="Sleep trackers detect sleep via a combination of motion, heart rate, and temperature sensors." data-portal-copyright="" data-has-syndication-rights="1" src="https://platform.theverge.com/wp-content/uploads/sites/2/2026/06/268600_oura_ring_5_AKrales_0077.jpg?quality=90&#038;strip=all&#038;crop=0,0,100,100" /> <figcaption> Sleep trackers detect sleep via a combination of motion, heart rate, and temperature sensors. </figcaption> </figure> <p class="wp-block-paragraph"><em>This is </em><a href="https://www.theverge.com/optimizer-newsletter" target="_blank" rel="noreferrer noopener">Optimizer</a><em>, a weekly newsletter sent from </em>Verge<em> senior reviewer</em> <a href="https://www.theverge.com/authors/victoria-song" target="_blank" rel="noreferrer noopener"><em>Victoria Song</em></a><em> that dissects and discusses the latest gizmos and potions that swear they're going to change your life. Opt in for </em>Optimizer <em><a href="https://www.theverge.com/newsletters" target="_blank" rel="noreferrer noopener">here</a>.</em></p> <p class="has-drop-cap wp-block-paragraph">Oura's getting sued.</p> <p class="wp-block-paragraph">A recently filed class-action <a href="https://clarksonlawfirm.com/wp-content/uploads/2026/08/COMPLAINT-26-cv-08686-Surber-v.-Oura-Inc.-et-al.pdf">complaint</a> against the smart ring maker alleges that the company has duped customers by claiming it can accurately track different sleep stages. A smart ring <em>can't</em> possibly do that, the suit says, because the Oura Ring doesn't directly measure your brain waves. Instead, Oura uses AI models to take advantage of "desperate consumers who struggle with their sleep … by selling fault …</p> <p><a href="https://www.theverge.com/column/984991/optimizer-oura-ring-lawsuit-sleep-tracking-wearables">Read the full story at The Verge.</a></p>