Many studies learn a lot from wearable data — heart rate, sleep, steps — because it captures how you are doing without asking you to fill anything in. TrialPilot reads this data from Apple Health on iOS or Health Connect on Android, and only when you choose to connect it. Nothing is read until you say so.
What TrialPilot reads#
Depending on your device and what your study asks for, supported categories can include:
- Heart rate and resting heart rate.
- Heart-rate variability.
- Respiratory rate.
- Blood oxygen.
- Body or wrist temperature.
- Sleep stages.
- Steps, distance, and energy.
- Walking mobility and flights climbed.
TrialPilot reads this data for research and for your own trends. It is read-only: TrialPilot never writes data back to Apple Health or Health Connect.
Manage everything from one place#
Open More > Health data to stay in control of the connection. From there, you can:
- Connect Apple Health or Health Connect.
- Sync now.
- See the last sync time.
- Review what data categories are shared with your study.
- Open your platform health app to adjust permissions.
- Stop syncing on this device.
You stay in control
When trends appear#
Once you connect, your data starts building a picture. Trends appear once there is enough data for a metric — so a new connection may take a little time before charts show up. See Trends, pacing, and readiness for how to read what appears.
Data you connect before a study#
You do not have to be in a study to connect health data. Data you connect early banks as your own personal baseline — a record of your normal, before anything changes.
When you later join a study that asks for wearable data, that baseline history can count toward the study. Studies often want a baseline period of data before the study proper begins, and if yours is already collected, you may not have to wait. The app may suggest connecting health data before you start a study for exactly this reason — but connecting never replaces study consent, which is always a separate decision.
For what researchers can and cannot see once your data is shared with a study, read Your data and privacy.