Have been reading about SIM cards for the htc one lately and i figured since sprint always does activation OTA and with your ESN that they wouldnt be using the sim card slot..
But are they actually making the move to SIM cards for this phone now?
Why thank you kind sirI'll kindly point you to this thread.
http://forums.androidcentral.com/htc-one/267640-yes-sprint-htc-one-has-sim-card.html