While I was going to see my sleep tracking for the night, I saw the widget that shows the blood oxygen pop up in the sleep analysis, I clicked it and it asked me if I want to track it during the night.
I turned it on and can't wait to see this new feature added for my galaxy watch 3 and see the battery consumption of it.
Edit: I turned on the feature on my phone but the watch didn't track the blood oxygen at night.
