Walmart offers the Nokia Lumia 635 No-Contract Windows Phone 8.1 for AT&T Wireless GoPhone for $54.33 with free shipping. (Amazon charges the same.) That's $2 under our mention from three weeks ago and the lowest total price we could find by $6. It features a Qualcomm Snapdragon 400 1.2GHz quad-core processor, 4.5" 854x480 IPS LCD, 512MB RAM, 8GB internal memory, 5-megapixel camera, microSDHC slot, WiFi, Bluetooth, and Microsoft Windows Phone 8.1 OS.