Archive · 10 Nov 2025
Fitbit Labs Tests New Health Alerts and Hypertension Study on Pixel Watch 3
Fitbit, which is part of Google, is trying out some new health features with a few people who have a Pixel Watch 3.
One test called 'Unusual Trend Detection' watches for strange changes in your health data that are different from your normal patterns.
If it sees something unusual, it will ask you to log how you feel and might suggest resting.
It's not a doctor's diagnosis, just a way for Google to learn what health signals are important.
Another test is a bigger study about high blood pressure.
Google wants to see if the watch can help spot signs of high blood pressure over 180 days.
Some people in this study will wear a special cuff to compare its readings with the watch's data.
To join, you need to be over 22, live in the US, and use the Fitbit app in English.
Fitbit Labs is testing new health alert features and a hypertension study for Pixel Watch 3 users in the US.
The 'Unusual Trend Detection' experiment alerts users to health metrics outside their normal range and prompts symptom logging.
The Hypertension Study aims to determine if Pixel Watch data can help identify signs of high blood pressure over 180 days.
Up to 10,000 participants are sought for the hypertension study, with a subset undergoing clinical measurements for comparison.
Eligibility requires users to be 22+, reside in the US, use the Fitbit app in English, and own a Pixel Watch 3.
- Who
- Fitbit Labs (Google)
- What
- Testing new health alert features and a hypertension study with Pixel Watch 3 users
- When
- Currently
- Where
- United States
- Why
- To gather real-world data to improve health features, tune thresholds, and understand if watch data can help flag signs of high blood pressure.
- Study Duration
- 180 days (Hypertension Study)
- Participant Limit
- Up to 10,000 eligible participants (Hypertension Study)
- Eligibility
- 22+ years old, US resident, English Fitbit app, Pixel Watch 3
- Experiment 1
- Unusual Trend Detection
- Experiment 2
- Hypertension Study