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Change FIT device identity

Rewrite file_id manufacturer and product. The ride itself is untouched.

Files stay on this device

1Select a file

2Device

3Run

Select a file first.

Your file is processed in your browser and never uploaded.

What this format is

Device changer: some platforms treat a file differently depending on which device wrote it.

How to get the file

  1. From Garmin Connect
  2. 1. Export original FIT.
  1. From Strava
  2. 1. Strava may still show the original device name from their own import.

What is kept and what is lost

KeptLost or missing
The activity dataOriginal manufacturer / product fields

Questions

Why change the device?

Some platforms treat files differently by manufacturer, or hide an activity from a device you no longer use.

Does the activity data change?

No. Only manufacturer and product on file_id.

Will Strava show the new name?

Strava often keeps the device name from their first import. A new upload may still show their own mapping.