This is what I use now, along with my 3M Bluetooth headphones. It works great and when you get on and off your tractor to do other chores your phone goes with you. Heaven forbid you get hurt or have a medical issue your phone is with you and not up on the tractor. Well made and different sizes available. Bought it after my phone fell from shirt pocket onto gravel driveway, did not end well. Sorry first post can not post links yet.
MAXGOODS Tactical Molle Military Pouch Smartphone Holster, Universal Mobile Phone Belt EDC Security Pack Carry Cell Phone Holder (from Amazon $11.00)