Amazon offers its Prime members the Nokia Lumia 635 No-Contract Windows Phone 8.1 for AT&T for $29.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it costs an extra $6.44.) Although we saw it for a buck less in June, that's the lowest total price we could find by $33. 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.