@Cjh: Do you have the Fit 2 connected to your S20 via the Galaxy Wearables app? If so, open the Samsung Health app on the phone, tap the 3 lines in the top left > Settings (cog symbol) > Sync With Samsung Account > On > Sync Now. If the issue persists, try unpairing the watch and phone via Settings > Connections > Bluetooth > Tap the cog to the right of the Fit 2 > Unpair/Forget, then re-establish the connection and attempt to sync your data once again. Let me know how you get on.
Hi! Same problem here! I have a 3h hike on my Gear Fit 2 that won't synchronize with the Samsung Health app. I have the last versions and firmware on both devices, and I have tried what was mentioned above. No luck. Posterior workouts do sync all right.
I think I remember it happening a couple times, like two or three years ago (its been a while without working out...). On this occasion, the smartband went out of battery at the end of the workout. But this happened also yesterday and the workout did sync after I charged it...
I guess we won't get a response or any solution then. Shame on Samsung... @AndrewL 😞