I have a Withings Activite (the one with leather strap) so I can't really use it for cycling. But I do have a Fitbit Surge that I use while cycling (distance/GPS, heartbeat, etc). We also have a Fitbit scales here at home so the problem is finding an app that shows both platforms as one...

Enter inKin. You can link the most common fitness trackers (Fitbit, Microsoft Band, Withings, Garmin, Jawbone and others) and select which one is the source for which metrics. So I have Withings for steps and calories (use it most of the days) and Fitbit for weight, exercise, pulse rate.

If you join let me know and post here so we can connect there - otherwise you can find me (freitasm on Withings or freitasm on Fitbit).