Getting Real-Time heart rate data in third-party mobile app

[brucemax]

A lot of my users ask for supporting fitbit in my app, so is it possible to retrieve Real-time heart rate in my android or ios app (from fitbit 3 for example). May be there is some SDK?

Thanks.

[JonFitbit]

Only FitbitOS devices (Ionic/Versa*) support our Device SDK. All other devices support our Web APIs, but those don't provide real-time data.

[sagar_nayak]

so what solution do you suggest to get the live HR data to 3rd party app? do I have to create a Fitbit app to install on the device to get that data?

[Gondwana]

Basically, yes. You'll have to write a clockface or app that runs on the device (and it must be a FitbitOS device). It won't be able to run in the background because there is no background.

Your clockface/app must transfer the data to a companion app running within the Fitbit app on the user's phone/tablet. The companion app must transfer the data to a server using fetch() or WebSocket.

You can write a server running on the same phone/tablet. That can be part of your 3rd party app.