Fitbit sleep accuracy boost
Fitbit is rolling out 'significant updates' to its Personal Health Coach that it says will boost sleep‑tracking accuracy by about 15% for premium subscribers (techradar.com). The update is aimed at better distinguishing true sleep from restful wakefulness and delivering more actionable feedback to users (techradar.com).
Google unveiled the updates at its healthcare event “The Check Up” on March 17, 2026. (blog.google) The changes are being delivered via the Personal Health Coach Public Preview, with the sleep‑tracking tweaks set to reach preview users “over the next few days” and a redesigned Sleep Score rolling out in the coming weeks. (blog.google) (androidauthority.com) Google says its updated sleep models were retrained on diverse, inclusive datasets to better capture interruptions, naps and transitions between stages and to align outputs with clinical gold‑standard measurements. (blog.google) Public Preview will also add the option to securely link US medical records through partners b.well and CLEAR, and a Continuous Glucose Monitor connection via Android’s Health Connect is scheduled to arrive next month. (androidauthority.com) (techradar.com) Google highlighted recent Fitbit research published in Nature on predicting insulin resistance from wearable data and noted an ongoing Fitbit hypertension study that will feed future coach insights. (blog.google) The Personal Health Coach is powered by Google’s Gemini models and first entered preview for US Android users in October 2025 before rolling out to additional platforms and regions. (blog.google) (jetstream.blog)
