Fitbit's AI symptom checker: 40,000 users test Pre-Visit tool
NCT ID NCT07552311
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a generative AI tool that helps Fitbit users understand their symptoms before a doctor visit. The AI provides information on urgency, possible causes, and a summary to bring to the appointment. 40,000 adult participants in the US will use the tool and report their satisfaction. This is an observational study, not a treatment trial.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could lead to better tools that help people understand their symptoms and prepare for doctor visits.
- What could go wrong
- This is an early observational study, not a treatment trial. The AI may give incomplete or inaccurate information, and results may not apply to everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 40,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Nov 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age of majority: are of legal adult age (18 or older in most US states; 19 or older in Nebraska \& Alabama, or 21 or older in Mississippi) 2. Resides in the United States 3. Fitbit mobile user using their Google accounts on an Android smartphone 4. Able to read, write and willing to consent in English Exclusion Criteria: 1. Enrollment using a corporate google.com account 2. Have a condition or circumstance that the investigator determines as inappropriate for participation. 3. Have a chief complaint or symptoms that are potentially related to mental health disorders, sexually transmitted diseases or infections, or pregnancy.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Google LLC
RECRUITINGMountain View, California, 94043, United States
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