The Lumia 640 runs Windows Phone 8.1 with the Lumia Denim update installed. In other words, it has the most up-to-date version of the operating system available. (Microsoft has said the 640 can be ...

There was a time that 5-inch 720p HD screens were a luxury available only on the priciest flagships. Now you can get one for $130. The Lumia 640's screen is great, especially at this price point.

Vitacost.com is an online vitamin and supplement retailer that offers a wide selection of products. Customers can shop from many different top brands or browse the Vitacost store brands. The company ...