Data tracking across device types

[quantpsychbu]

Hello, I am a researcher currently in the development stage of a project using fitbit data. Currently we are IRB approved to use our own devices and personal accounts for data tracking and have only used the personal application interface. We've only worked with inspire 3 devices but are looking into pulling from other fitbit fitness trackers. Would the api pull data from the different devices the same way? I couldn't find any information on the API docs or forums about if the way the data is recorded differs across devices. It's important that the data is able to be cleaned and processed the same way for our research. Thanks!

[mikechaos2]

From what I understand, the Fitbit API generally standardizes data across devices, so most metrics like steps, heart rate, and sleep are returned in a consistent format. That said, differences in sensor accuracy and sampling rates between devices can still affect the raw data quality. It is a good idea to validate outputs across models to ensure consistency for your research. You might also want to test a few devices side by side to confirm how comparable the datasets really are.

[OkayArnoldLarue]

Hey, I ran into the same question when working with multiple Fitbit devices. From my experience, the API generally pulls the same types of data across different devices, but some metrics might be missing or recorded differently depending on the model. It’s a good idea to test with a few latest orion device types and compare the outputs before scaling. That way, you’ll know exactly how consistent the data is for cleaning and processing.

[DorisFitbit]

Hi @quantpsychbu 

Thanks for sharing your post. 

The Fitbit Web API pulls data from the user's Fitbit account rather than directly from the physical tracker itself. This architectural approach ensures that the data is standardized once it syncs.

Because the API interacts with the account data, the retrieval process and data format are identical regardless of which model is being used. All Fitbit devices are supported, so whether your participants use an Inspire 3 or any other tracker in the lineup, you will be able to pull and process the data using the same methods and pipeline. Hope it helps!