Hi there @CTerp, glad to see you around my friend. Note that so far the only external application that I've known is Strava but this wont allow you to transfer external data of your heart rate to your Fitbit account. Strava will do the following:
- Exercises with GPS data recorded with Fitbit will be sent to Strava. Heart rate data will be included when it's available
- Exercises recorded with Fitbit's app or devices that do not include GPS data are NOT currently sent to Strava
- Exercises recorded in Strava will be synced to Fitbit as manually logged activities, but will not include GPS or heart rate data from Strava.
If you want to learn more about external apps as additional information, you can visit the following link: https://www.fitbit.com/partnership.
I invite you to visit our Feature Requests board and share your ideas and feedback. If you find that a similar suggestion has already been made by another member of the community, you can vote for their idea and add your comments.
Let me know if you need further assistance, I'll be round.
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