Sprint and Microsoft have renewed the partnership with the announcement of Nokia Lumia 635, which is arriving across multiple Sprint brands beginning with Boost Mobile and Virgin Mobile on Dec. 23. It will be available on Jan 16 to Sprint postpaid customers. This is the first Windows Phone 8.1 smartphone to launch on Sprint’s network and the first Lumia Windows Phone available to Sprint’s prepaid customers.

Both Boost Mobile and Virgin Mobile USA offer budget-conscious, no-contract wireless plans, including unlimited talk, text and data options. Lumia 635 will be available in cyan at www.boostmobile.com/lumia635 and in white at www.virginmobileusa.com for $99.99 (excludes taxes). Starting Jan. 9, Lumia 635 will also be available at Boost Mobile’s exclusive retail stores, select independent wireless dealers nationwide and later in the month at select national retail locations. Sprint pricing will be shared at a later date.

Nokia Lumia 635

Running on Windows Phone 8.1 operating system, the Nokia Lumia 635 is further combined with a Qualcomm Snapdragon 1.2GHz quad-core processor and enhanced LTE access. It sports a 4.5-inch FWVGA display with 854 x 480 pixels of resolution, Nokia ClearBlack Technology and Corning Gorilla Glass 3.

Nokia Lumia 635 houses a 5-megapixel rear camera, but no front cam for video calling. It comes with 512MB of RAM and 8GB expandable internal storage. It is backed by a 1830mAh lithium ion removable battery, that is rated for up to 14 hrs of talk-time. It measures 5.09 x 2.62 x 0.36 inches and weight is 4.73 ounces.