New study shows how AI could unlock deeper heart data from the Apple Watch’s optical sensor<div class="feat-image">

</div><p>A few days ago, we looked into how Apple could one day use
brain wave sensors in AirPods to measure sleep quality and even detect seizures.</p>
<p>Now, a new paper shows how the company is exploring deeper cardiac health insights with the help of AI. Here are the details.</p>
<a data-layer-pagetype="post" data-layer-postcategory="apple-research,apple-watch" data-layer-viewtype="unknown" data-post-id="1031037" href="
https://9to5mac.com/2025/12/02/apple-watch-study-ai-health-data-optical-sensor/#more-1031037" class="more-link">moreâ
New study shows how AI could unlock deeper heart data from the Apple Watch’s optical sensor