Anything over 9 miles or so and my chest gets a gnarly rash right in the middle of my chest where my HRM sits. I put a decent amount of body glide, and no change.
No idea if this would work and it's likely not even a good idea, but you could eschew the elastic band and just use double sided sticky tape?
OR... or you could use sports strapping tape and secure it to your chest that way. I use that tape to keep the blood sugar monitor stuck to my son's arm.
P.S.
The title made me think this was about Human Resources making you do 2 jobs hahaha
Interesting idea. I'm not sure that would work. I sweat so much I can't imagine anything sticking. I have pretty sensitive skin, too. I had to wear a 24-hour holter monitor and I literally still have a spot on my skin where the patch was in the shape of a square from months ago!
I'm using a Garmin Fenix 7, plus the chest HRM strap. I feel like wrist only wouldn't be as accurate. With that said, might not be a bad idea so scrap the chest one since I'm trying NOT to focus on HR so much and go more by effort. Not sure yet.
When I got my first wrist monitor I wore both for a few days and didn't see a significant difference. Unless you're running professionally it should be good enough accuracy. And boy do I never miss the chest strap.