It is important to always have a primary tracker connected. This is because your most basic challenges are step-based.
You should have selected your primary step tracker when you created your user account.
To check/change your step tracker, select ‘Primary Step Tracker’from the hamburger drop down menu then select the tracker you wish to use.
To see a full list of compatible step trackers and wearables, see the ‘Connect Apps’ option in the app.
For help connecting your mobile phone step tracker, see the ‘Connecting Apple Health and Google Fit’ topic.
For help connecting anything else, see the ‘Connect apps and wearables’ topic.
Please note, only one step tracking device will be verified for challenges.