The app has big issues in my opinion, with sleep log and heart rate, far worse than the iOS app. Update: had to reset the Versa 3, uninstall and reinstall the app. Now it seems it works, but log in was a pain, worked 5th time... Update 2: heart rate logs are again not showing. Update 3: sync with versa 3 is getting worse, app isn't showing last 2 days of sleep and heartrate.