As Americans prepare for a wave of hot new mobile devices this fall,

the Un-carrier promises to beat big carriers’ best trade-in offers

Bellevue, Washington – September 8, 2014 – In advance of a huge wave of new superphones and tablets coming to market this fall, T-Mobile (NYSE: TMUS) today vowed to beat the big carriers’ best trade-in values on used devices - to help American wireless consumers get the very best deal on the hottest new devices.

Consumers can now have peace of mind when they’re ready to upgrade, knowing that their trade-in at T-Mobile is the best deal they’ll find anywhere compared to AT&T, Sprint and Verizon. And, they’ll never have to worry about the fine print and all the details the carriers continue to hide behind.

“We’re going to see some of the most phenomenal devices ever in the coming months, and that means a whole lot of Americans trading-in their devices and upgrading,” said John Legere, president and CEO of T-Mobile. “For years, the big carriers have been ripping off their customers with low-ball trade-in values, so we’re putting an end to that and guaranteeing we’ll give customers what they deserve − the best value in the industry.”

This latest move is just one more example of T-Mobile changing the way consumers buy wireless service and innovating ways to give everyone the best access to the most amazing technologies of our lifetime.

“When that new superphone’s price is the same everywhere you go, the difference in your final cost comes down to the trade-in value of your old phone,” said Mike Sievert, chief marketing officer for T-Mobile. “Now when you’re ready to upgrade – it’s a no brainer where to find the best value– the Un-carrier. Guaranteed.”

To make good on this guarantee, T-Mobile will track the market every day to ensure we keep our promise. If a customer can find a better trade-in offer from a major national carrier, T-Mobile will beat that offer, give them the difference back and because we value this help from our customer we will top it off with another $50!

This offer starts September 17 and is for a limited time. All a customer has to do is call T-Mobile or go online within seven days of completing a trade-in at T-Mobile and tell us where, when and for how much they saw a better deal for their device. It’s that easy.

Eligible device trade-in, qualifying credit, and new device purchase with qualifying service required. Difference in trade-in price and $50 offer applied as a bill credit within 2-3 bill cycles. See T-Mobile.com for details.

About T-Mobile US, Inc.:

As America's Un-carrier, T-Mobile US, Inc. (NYSE: TMUS) is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The Company's advanced nationwide 4G LTE network delivers outstanding wireless experiences for customers who are unwilling to compromise on quality and value. Based in Bellevue, Washington, T-Mobile US provides services through its subsidiaries and operates its flagship brands, T-Mobile and MetroPCS. It currently serves approximately 50.5 million wireless customers and provides products and services through approximately 70,000 total points of distribution. For more information, please visithttp://www.t-mobile.com.

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