The US mobile network operator, T-Mobile, currently attracts subscribers with a limited time deal for the Nokia Lumia 521 smart phone: a $50 refill card upon purchase of the new Lumia handset with no annual contract. The Nokia Lumia 521, which is exclusively available at T-Mobile, has a price of $149.99 but the refill card offer increases the handset price to $199.99.

The $50 refill card offer is included in the purchasing price of the Nokia Lumia 521 handset and it will fund the T-Mobile subscriber's account for a limited period. More details are posted at the T-Mobile product page link: http://prepaid-phones.t-mobile.com/prepaid-phone/Nokia-Lumia-521-No-%20Annual-Contract

Consumers should expect 2-3 business days of shipping delivery when the Nokia Lumia 521 is purchased online at T-Mobile. However, the consumers can have the overnight shipping process with an extra charge of $11.99.

The Nokia Lumia 521 smart phone was officially introduced at the February 2013 Mobile World Congress in Barcelona, Spain with its release date last May 11. The Windows Phone 8 handset is reportedly offered as well at Walmart and Microsoft Retail Stores but the availability of such limited time deal there has not yet been confirmed.

The Windows Phone 8 handset is available at T-Mobile with the $149 price without any agreement making the low-cost purchase significantly worthy. Nokia Lumia 521 features a 4-inch IPS touch screen display with 800x480p resolution, 1GHz Snapdragon S4 processor and 512MB of RAM.

Additional impressive features and specs included on the Finnish smart phone are the 5MP camera capable of 720p HD video recording, 4G support, 1430mAh battery capacity and the available 8GB internal storage capacity. There is a microSD card slot on the Nokia Lumia 521 to expand memory storage of up to 64B.