While this guidance addresses a specific Google Fit issue, it's also a good troubleshooting tactic for any data sync issue.

When using an Android device with Google Fit, you may need to review your exercise data on the Aduro Mobile App for the data to then become visible on the web platform.

Log in to the Aduro Mobile App, tap the Profile (person) icon in the lower right corner and then tap My Data. 

Simply viewing this page usually triggers an update. You can also scroll down and tap the Sync Now button to manually trigger an update, including recent and historical data.