Some sources can be connected to the app directly, like Fitbit, Withings, Garmin, etc.
A direct integration gives additional charts to track your workout heart rate, steps, cadence & heart rate zones, activity breaks, cardio volume, strength intensity, and more.
How do I connect a source directly?
If you are an iOS user, go to My data.
If you are an Android user, go to Data.
Select the required category, for example, Activity.
Scroll down or tap Sources.
Tap icon of the app you need.
Tap Connect and enter your login and password.