This is a cool idea. I hadn't really toyed with the idea of my watch living anywhere but my wrist.
Like the GP, I have to remove mine a lot for computer sessions, as a heavy keyboard user.
I'm really fatigued by all the stuff I have to carry each day. I think the watch is often the best bang for the buck. Pretty small, rarely in the way, lots of utility.
I don't care about the health tracking, so the ankle isn't an option, but I'm going to think about other ways I can use my (Galaxy) watch.