Modernizing the Fitbit Developer Experience.
The Fitbit Web APIs are moving to a new, scalable infrastructure. We will be deprecating the legacy Fitbit Web API in September 2026. To ensure uninterrupted data continuity for your users, you will need to migrate your applications. Detailed migration guides are live on the Google Health API developer site.
Electrocardiogram
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Electrocardiogram (ECG)

The Electrocardiogram (also known as ECG) endpoint is used for querying the user's on-device ECG readings. The ECG API is for research use or investigational use only, and is not intended for clinical or diagnostic purposes.

Developers can use the following API endpoint when integrating the electrocardiogram data type:

  • Get ECG Log List returns a list of the user's recorded ECG readings and their details.