Best Buy offers the used Apple iPhone 5 16GB Smartphone for AT&T or Sprint in Black/Slate, for $199.99 with free shipping. That's $28 under our January mention of a refurbished unlocked model and the lowest total price we've seen for a 16GB iPhone 5. It features an Apple A6 processor, 326-ppi (pixel per inch) Retina 4" display running at 640x1136, front- and rear-facing cameras, 8-megapixel camera with LED flash, 1080p video capture at 30 fps, 802.11n dual-band wireless networking, 1GB RAM, and dual microphone.

Of note, it's also available for Verizon Wireless for $229.99 with free shipping.