Lumen

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Read your activity, heart and sleep from Google Health. Read-only — nothing is ever written back.

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  • Activity & fitness Steps, distance and Active Zone Minutes.

  • Heart & vitals Heart rate, resting heart rate and blood oxygen.

  • Sleep Nightly duration and stages.

Your data is fetched on demand and cached in this browser only — Lumen keeps no database. The Health scopes are restricted, so signing in needs a Google account with a paired Fitbit or Pixel device, on Google’s tester allow-list.