Best Buy offers the no-contract Apple iPhone 4S 16GB Smartphone for AT&T in White, model no. MC920LL/A, or Black, model no. MC918LL/A, for $199.99 with free shipping. (Select "Buy an unactivated device" when adding to cart to get this price; the lower price requires a 2-year contract.) That's the lowest total price we could find by $145. It's powered by the Apple A5 dual-core processor, 8-Megapixel camera, 1080p video recording, dual-antenna system, AirPlay Mirroring, Siri voice-activated assistant, and 8-hour battery life.