Latest version of S Health can now get sleep data direct from Fitbit, article here.
On the Fitbit-My Applications page, it lists the following items that have access with S Health:
heart rate, weight, location and GPS, profile, activity and exercise, sleep. So more integration with S Health may be down the road. Right now, only the sleep data is showing in S Health.
Gary D.| Feeding Hills, MA MBG PE
Pixel Watch 3, Pixel Watch 4