Fitbit Hypertension Study Lab is now open for enrollment as part of Google’s new health-focused research program. The study aims to explore whether smartwatch data can help detect early signs of high blood pressure. Currently, it is accepting a limited number of Pixel Watch 3 users in the U.S. In particular, Google is focusing on gathering real-world data from everyday use to inform future health features.

Google recruits 10,000 users for blood pressure study

The study is focused on users aged 22 and older who own the Pixel Watch 3 (45mm LTE model). Google hopes to recruit 10,000 participants for the six-month research project.Google may send some users a 24-hour ambulatory blood pressure monitor (ABPM) cuff to wear during the experiment.

The project won’t offer real-time health insights or feedback. Instead, it’s purely data collection, aimed at improving future health-tracking features in Fitbit products.

Temporary battery impact and no user feedback

Participants are advised that joining the study may temporarily reduce the smartwatch’s battery life due to increased background activity. No personal blood pressure results or health alerts will be shared during the study period.

Google says the data gathered “could one day help users take proactive steps toward better heart health.” As a result, the company is hinting at long-term plans for deeper heart health integration in Wear OS and Fitbit.

How to apply for the Fitbit Hypertension Study Lab

To sign up:

1. Open the Fitbit app
2. Tap You > Fitbit Labs > See all
3. If eligible, the Hypertension Study Lab option will appear

Google may not make the study available to all accounts right away, and they will contact only successful applicants. They have not confirmed the study’s official start date.

Google’s move adds to growing efforts to use wearables for more than just fitness, pushing toward a future where smartwatches help monitor serious health conditions before symptoms even show.