Samsung announced this morning that the Galaxy S III would be launching on all of the major U.S. carriers by the end of June. Now, the carriers are beginning to announce pricing and availability details for the smartphone. T-Mobile is the second carrier to announce details for the smartphone’s U.S. launch. Customers will be able to purchase the Galaxy S III beginning June 21. T-Mobile stated it expects both the blue and white versions of the phone to be available. Though T-Mobile has not released any pricing information, both Verizon and Sprint have announced $200 and $250 versions of the device. Verizon has announced it will begin taking pre-orders for the smartphone on June 6, and Sprint has also announced a June 21 launch date.

“We have a tremendous history of working with Samsung to bring cutting-edge devices to market, and we know our customers are excited to get their hands on the Galaxy S III,” said Brad Duea, senior vice president of product management at T-Mobile USA. “As we continue to aggressively compete, this device is yet another example of how T-Mobile delivers amazing devices and 4G experiences to our customers.”

T-Mobile claims to have sold more of the Galaxy S III’s predecessor Galaxy S phones than any other U.S. carrier. While this may be true, T-Mobile has struggled recently due to being the only U.S. carrier that does not carry Apple’s iPhone. Though a proposed merger with AT&T last year did not pan out for T-Mobile, the carrier did receive a $4 billion pay-out from AT&T as a result.