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About this tool
Plan a fitness and health data export, count the sensor records a wearable has stored, and see the inference risk.
A wearable writes a heart-rate sample roughly every 5 seconds it is worn, a step and energy record every minute, and a sleep-stage score every 30 seconds — which is why a few years of tracking becomes millions of records. This planner turns your wear time and workout habit into that record count, sizes the export, and separates the categories that count as special-category health data under GDPR Art. 9 and sensitive personal information under India's SPDI Rules 2011. It also names the right export route for each platform, since Apple Health, Google Fit, Fitbit, Strava, Samsung Health and Garmin all differ.
Open Health App Data Export Guide on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
Uses actual wearable sampling rates instead of a vague 'health data' label.
Marks the items that carry extra legal protection so they get extra care.
Apple Health exports on-device, Fit and Fitbit through Takeout, Strava through its own bulk archive.
Open the Health app, tap your profile picture at the top right, scroll down and choose Export All Health Data. It produces a zipped XML file on the device. Apple's privacy portal cannot include it because Health data is end-to-end encrypted, so this is the only route.
For accounts linked to a Google Account, both export through Google Takeout — deselect everything else first so the archive stays small. Older Fitbit accounts that were never migrated still export from Fitbit's own account settings.
Because continuous sensors write constantly: at a five-second heart-rate interval, sixteen hours of daily wear produces over eleven thousand samples a day, plus a per-minute activity record and a sleep score every thirty seconds. Multiply that by several years and the file runs to hundreds of megabytes before any GPS is included.
Yes. Health data is a special category under GDPR Article 9, which requires a stronger legal basis to process, and India's SPDI Rules 2011 classify health information as sensitive personal data or information. Store the export encrypted and do not upload it to converters or analysis sites you do not control. This page is informational and is not medical or legal advice.