The benefit for something like a rest timer is you have to interact with it all the time so it's a giant pain to get your phone in and out of a sleeve repeatedl

The benefit for something like a rest timer is you have to interact with it all the time so it's a giant pain to get your phone in and out of a sleeve repeatedly. Plus, again, I sweat like a pig when I lift heavy or run and the phones don't seem particularly waterproof. Plus my hands sweat too and I will drop it.