Eh, people have choices in their watch wear, and you're welcome to have a fully analog watch. Lots love those. A digital watch can be convenient in multiple ways. Personally I keep my phone silent and so both alarms and notifications usually come over my watch. I also have it watch my sleeping habits, my pulse, and my blood oxygen levels at night.
My watch AFAIK doesn't have this part, but apple watches can warn you or others if your heart rate is out of range, which can sometimes catch certain issues if the person is susceptible. Of course that gives up some privacy but some people accept that trade off.
I understand fully people not wanting or trusting that stuff, but it doesn't mean it shouldn't exist. Just because I don't like pickles I don't believe they shouldn't exist.
On a Samsung Fold thats open to wide screen: Use one eye only. Two eyes makes it overlap, at least at the distance I held it.