The prepaid carrier gives customers unlimited access to high-speed data, but with a few caveats.
The 4.5-inch LTE-enabled smartphone arrives in staggered launch dates throughout July.
The Un-carrier and its no-contract brand will carry an entry-level LG Optimus handset each, aimed at wallet-conscious customers.
The carrier now offers the new S5 for the full contract-free price of $649.
The no-contract carrier adds Samsung's latest smartphone to its Android portfolio.
It's ahead of schedule in migrating customers from the MetroPCS and plans to decommission the old network in Boston, Philadelphia, and Las Vegas by the end of the year.
The Simply Prepaid plan puts T-Mobile in direct competition with its own prepaid arm, MetroPCS, which may actually still provide a better value for some.
A new Data Boost rate plan gives subscribers 2.5GB of high speed data for $35 per month.
Big Red's latest move gives prepaid subscribers more wiggle room for data consumption.
The shared data plan, initially available to only four smartphones in Virgin's lineup, will allow individuals to customize on the fly how much data each member users.