Chubbiestech via eBay offers the open-box Unlocked Nokia Lumia 635 Windows Phone for T-Mobile in White for $29.99 with free shipping. That's $30 under the lowest price we could find for a new one. 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.

Note: This item will come with minor hairline scratches and an after market box.