Oh cool! I might do that. Thanks for the tip, @silvertop.

I actually went and bought several pairs of pants for sports (hiking, biking, pickleball playing) that are snug and stretchy, so they hold the phone close to my leg. That has been the best scenario I've found. I used to wear a fitbit and then an Apple watch, but I really hate having anything on my wrist, and I always had an allergic reaction to the bands!