Google Health Connect Integration for Android

A Health Connect integration is an Android app built with the Jetpack Health Connect client library. The app declares the data types it needs, requests permission at runtime, reads records and uploads them to your backend. Other apps and connected devices write into Health Connect, so your app can read data from several sources through one interface.

For incremental sync we use the changes API. The app stores a changes token per data type set and retrieves inserts and deletions since that token, rather than re-querying full history. Tokens can expire, so the sync engine includes a fallback to a bounded time-range read.

Health Connect defines typed records for activity, vitals, body measurements, sleep, nutrition and cycle tracking. Types commonly used in healthcare programs include steps, distance, exercise sessions, heart rate, HRV (reported as RMSSD), resting heart rate, blood oxygen, respiratory rate, blood pressure, blood glucose, body temperature, weight, sleep sessions, nutrition and hydration.

Each record carries metadata about the app that wrote it, and sometimes the device. That matters clinically: steps from a phone and steps from a watch are not the same measurement. We preserve source metadata through the pipeline so clinicians and analysts can filter by origin, which is also important for smartwatch health data from multiple brands.

Every data type is declared in the manifest and requested at runtime, and users can revoke access at any time. By default an app can read data from up to 30 days before the first permission was granted; reading older history requires the separate history permission. Reading while the app is in the background also requires its own permission.

Before release, apps must submit a health permissions declaration in Google Play Console explaining which types are accessed and why, and pass Google's review. Access is not guaranteed, and requests that do not match the app's stated purpose may be rejected. We prepare the declaration and privacy disclosures alongside your HIPAA-aligned data handling.

Health Connect applies rate limits and quotas to reads and writes, with different limits for foreground and background use. Large backfills need to be paged and spread over time. Data completeness depends entirely on which apps and devices write into Health Connect on each user's phone.

Platform availability also differs by Android version and device manufacturer. We define a supported device matrix early and test against it, and we build monitoring that flags stalled syncs or revoked permissions.

Health Connect suits programs that need to reach Android users across many device brands, including remote patient monitoring, hypertension and diabetes programs, sleep tracking, post-discharge follow-up, wellness programs and decentralized trials.

As with any consumer source, readings are not a substitute for clinical-grade measurement unless validated for the intended use. We help teams mark which data is used for trends and which requires clinical confirmation.