This feels a lot better than the previous Galaxy Watch because it does not feel tight or loose when sleeping with it. The previous watch felt like it was putting pressure on my wrist even when I had it loose and not laying on my hand. The GUI is slightly scaled larger to the 47mm screen that touch is much more responsive and more accurate with my fat fingers. I do use this to track my sleep and I like that I don't wake up with numb hands. I also have the Galaxy Ring, and it compliments the watch quite nicely.
I love everything about this watch. I get compliments on the way it looks. The battery life has been excellent. And I got a great trade-in for my old watch.
Overall I have had the watch for 1 month and have found it to be quite nice. Took the watch to the Beach on vacation and had no problems with the watch in the ocean. I would recommend highly the Samsung Watch Ultra.