Although there has been a bit of confusion surrounding when T-Mobile’s 5G network will first be available to customers, the is less ambiguity surrounding the details of 5G plan pricing. T-Mobile is known for helping to re-popularize unlimited data plans in the United States, and that unlimited streak will continue with 5G availability.
T-Mobile

Source: Hot Hardware – T-Mobile Vows Unlimited 5G Mobile Service With No Price Premium