How to disable the physical sim and only use the eSIM on iPhone XS/iPhone XS Max? I'm wondering if there is a way to turn off the Physical sim and use only the eSim on my iPhone XS Max. I travel a lot and I'm loving the use of eSIM. 

I understand that I can turn off the eSIM if its required, but I wanted to know if there was any way to turn the Physical Sim off and leave only the eSim ON.

Note - I have an unlocked iPhone XS Max.
I found the option buried under Mobile Data Settings. There is an option which states "Turn On this line". Toggle this ON/OFF to turn off the network.
This works for both Physical SIM and eSim.

At any given time, You could -


Have Physical Sim ON and eSim OFF.
Have eSim ON and Physical Sim OFF.
Have both the Sim turned OFF.