One of the magical promises of eSIM technology is the ability to switch to a new carrier without needing to go to a store or even wait for a physical SIM to arrive in the mail. Instead, you just use the electronic SIM card installed in your phone and switch around from carrier to carrier at will.
T-Mobile is now letting us experience some of that reality. The company is rolling out a new feature called Network Pass that, unbelievably, gives you free T-Mobile service for three months. That’s unlimited service, too, with no data caps outside of the usual 50GB throttling limit.
