HTC One was unveiled on February 19th. After that the pre-order has been started in most of the carriers like Sprint, AT&T etc. Sprint announced the pre-order for HTC One on April 5^th. Initially the Glacial Silver color device was available in Sprint and AT&T.  

Now the Black color HTC One will be available from both Sprint and AT&T. The Stealth Black version of the HTC One will be available soon from both carriers. On 20^th April a picture of the phone in black was added in AT&T's website. The 64GB version of the Black HTC One has been added in the site. There is information about the launch date. It has a price tag of $299.99 with a signed two-year contract.

Also the Sprint's website “Black HTC One is coming soon” statement was posted. 32GB version of glacial silver is available at the cost of $199.99 with contract. 

To buy HTC One Black Color Click on AT&T and Sprint