Best Buy offers this Microsoft Lumia 640 4G LTE with 8GB Memory Prepaid Cell Phone via eBay for $26.99 plus free shipping. Stay connected with this Microsoft Lumia smartphone from Cricket Wireless. It has a 5-inch HD display with Corning Gorilla Glass for superior durability, and its quad-core processing provides a top-notch user experience. Equipped with Windows 8.1, a 4G LTE connection and an 8-megapixel camera, this Microsoft Lumia smartphone meets your mobile entertainment and communication needs.