Can I get raw original Garmin FIT files?

The FIT files Terra delivers are generated from its internal unified data model, the same as the JSON standard payloads, not the raw original device FIT files.

The FIT files Terra delivers are generated from its internal unified data model, the same as the JSON standard payloads, not the raw original device FIT files. Raw provider FIT delivery isn't supported.

For Garmin specifically, the original FIT file and the beat-to-beat R-R intervals inside it aren't reachable, because Garmin data comes from their JSON feed, which excludes the original activity file.

For efficient discovery:

1

Pull activities with with_samples=false to get lightweight JSON summaries (carrying activity type).

2

Re-pull only the ones you want with with_samples=true.

3

Use to_webhook=false for a synchronous response on ranges of 28 days or under.

Raw original telemetry beyond the normalised FIT output is a feature request we may consider, but don't support today.