Is the Galaxy Watch 6 supported?

I just got my preorder yesterday and followed the instructions for the GW4&5, turning on heart rate monitoring, but my sleep graph from last night doesn’t have any HR data. Is it not supported?

Hello Apollo, could you please check, if both apps (Sleep on the phone and on the wearable) have Body sensors permissions?
The Galaxy Watch 6 should be the same as the 4 and 5 models.