The band is not uncomfortable (after a couple of nights, it's very strange at first) and it will give you lots of insights other solutions can't.
You do have to put it on before bed and take it off and charge in the morning though. And it's expensive.
I did significant research into the sleep trackers before deciding and the bottom line I found out is that anything on your wrist/fingers etc. Just can't accurately tell which sleep phases you're actually in and the offsets are huge, check the user reviews and research, they were comparing all the trackers against a proper sleep lab.
So I decided for dreem2 and have been extremely happy, especially with the deep sleep stimulation functionality, since I didn't buy it because I'd have any sort of sleep issues.
Apart from detecting sleep stages, it has other features (e.g. smart alarm) which I have not used yet. I really wanted to use sleep simulation which they claim to enhance your deep sleep. But unfortunately this feature in not available in the headband sold in USA.
When correlating the data with SnoreLab, I consistently see the snoring occurring only while sleeping on my back, and almost never when sleeping on my side.
Useful to know if you are trying to resolve snoring problems.