Ending today, newegg offers the Unlocked Apple iPhone 5 16GB Smartphone for GSM Networks in White, model no. MD294LL/A, for $649.99. This $50 mail-in rebate makes it $599.99. With free shipping, that's $25 below our March mention and the lowest total price we've seen for this phone unlocked. (It's a current low by $49.) It features an Apple A6 processor, 4" 1136x640 Retina display, 8-megapixel iSight camera, 1.2-megapixel FaceTime HD camera, 1080p video capture, 802.11n wireless, Bluetooth 4.0, 1GB RAM, and more.

Note that this phone will not work on CDMA based carriers such as Verizon, Sprint, Alltel, Cellular One, Metro PCS, and Cricket.