True. Though the difference with smart watches is that they tend to be significantly bigger in size than what common watches used to be like.

Smart "bands" tend to be less perceptible.

I think it depends what kind of smartwatch you choose. It should fit your wrist. The amount of people I've seen with e.g. a Galaxy Ultra watch that stands over their wrist on both sides is staggering to me.

For me, the Galaxy Watch 7 in 44mm fits perfectly

They’re not that much bigger than an automatic, though they are heavier than most.

Yeah, they get bigger if you spend more money on them.

I have a Garmin Forerunner 165, it is not very big, and not heavy compared to an old style watch made from metal.

Surprisingly, I find the Apple Watch significantly more comfortable and less perceptible than any other watch I've worn in the past. My theory is it's the contoured back for the heart rate monitor, etc. But maybe I'm just weird.

How didn't they sweat their watch to corrosion? Or is that just a me problem when wearing something on my wrist?

Some plastic silicone straps with the heavier overall weight make it a worse experience that traditional watches