I’m sorry this is going to be such a shit comment, but I worked with a guy that had a fitness watch of some stripe.

He was a heavier guy and well, that plasticy band was pressed tight against his skin. One day he came in with this nasty looking ring of red and peeling skin around his wrist. Said he got a rash from the watch. (It’s very possible it was an allergic reaction to something in the band.)

This is a shit comment because I don’t know the brand, and I’m totally saying “trust me, bro.” But like, trust me, bro, it apparently happens?