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Multi-Tracker Support and the API

‎03-23-2015 11:06

‎03-23-2015 11:06

Later this week, Fitbit will release Multi-Tracker Support, which lets users seamlessly switch between Fitbit trackers throughout their day or week, so they can use the right tracker for any occasion.

Currently, a Fitbit user may only have one Fitbit tracker paired to their account at a time. Once multiple trackers are paired to an account, Fitbit will automatically detect when a user switches from one tracker to another, with no buttons to push on the device or the app. This unified data is then presented to users.

Please consider how this could affect your application:

  • Data provided through the Fitbit API will no longer necessarily represent a single tracker.
  • Data may change more frequently, as trackers sync at different intervals and unified data is recalculated at each sync.
  • Distance and number of steps will be less correlated when GPS data is available.

 

The Get Devices endpoint allows you to know the trackers currently paired to a user’s account. It does not list trackers that have been removed from a user’s account.

We are considering additional time series endpoints that explain how values were computed. If this is of interest, we’d like to know your use case.

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4 REPLIES 4

‎03-23-2015 11:38

‎03-23-2015 11:38

I'm curious how the "unified data" will be calculated if a user wears more than one of their linked Fitbit trackers at the same time. Will the user get to set a priority as to which one data should come from? WIll it come from the most active one? Will it come from the first one to sync?

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‎03-23-2015 19:16

‎03-23-2015 19:16

Will the update this week include HR time-series endpoints or is that being delayed?

 

Thanks for the great API support!

 

 

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‎03-24-2015 09:29

‎03-24-2015 09:29

We'd be interested in a time series endpoint for Fitabase which identifies which tracker provided which data. Makes a difference for researchers who might apply a different weight / inference based on what kind of tracker was used to capture the data.

 

--Aaron

Using Fitbits in Research? Check out Fitabase --www.fitabase.com
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‎03-25-2015 12:05

In response to Michael

‎03-25-2015 12:05

@Michael wrote:

I'm curious how the "unified data" will be calculated if a user wears more than one of their linked Fitbit trackers at the same time. Will the user get to set a priority as to which one data should come from? WIll it come from the most active one? Will it come from the first one to sync?

Please see https://help.fitbit.com/articles/en_US/Help_article/Can-I-use-more-than-one-Fitbit-tracker-with-the-... for more information. This feature is not design to support wearing multiple trackers at the same time. Users will not be able to set a prioritization. Fitbit determines which tracker has the best source of data when there is overlapping data. Sync order does not affect the determination.

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