newegg offers the refurbished no-contract Apple iPhone 4S 16GB Smartphone for AT&T in White (pictured) or Black, model no. MC920LL/A, for $499.99 plus $5.99 for shipping. That's the lowest total price we could find for a refurbished iPhone 4S without a contract, although we saw it for $16 less two weeks ago, since expired. (It's $149 under full retail price.) It's powered by the Apple A5 dual-core processor and features an 8-megapixel camera which is capable of recording 1080p video at 30 fps with image stabilization, dual-antenna system for faster downloads and improved call quality on GSM networks, AirPlay Mirroring, Siri voice-activated assistant, 8-hour battery life, and more.

Note: A 90-day warranty applies, but it's not clear who backs it. (It's not an Apple warranty.)

Update: You'll also receive the Philips iPhone/iPod Attachable Battery Pack and Charging Base, model no. DLP2277/17, for free with the purchase of this phone. (It's added to your cart automatically.)