My left wrist had formed an indent where I wore my se3. It was not worn tight, I tried different straps. In 6 months it looks like the tissue underneath has mostly moved away. I can feel my bone when I touch it. My right arm by contrast looks full like a regular arm.

Looked up apple watch indent reddit and I saw much more serious cases after years of use.

I’ve worn a samsung watch for a year it didn’t leave a mark, casio watches, none. Until apple fixes that weird dome shape never wearing one again. That watch is staying in the box it came in.

Edit: There seems to be people promoting other brands in this thread. Just want to make clear I do not recommend the samsung one either. Don’t want to be labelled as such. Just get a regular watch. Wear it when you go outside and take it off when inside. You were never using the mostly inaccurate health data anyway.