YouBuyRite via eBay offers the refurbished Unlocked Apple iPhone 5S 16GB Smartphone for GSM Networks in Gray for $349.88 with free shipping. That's $50 under yesterday's refurb mention and the lowest total price we've seen for this model. (It's also $161 under the best price we could find for a new one.) It features an Apple A7 processor, 4" 1136x640 Retina display, 8-megapixel iSight camera with 5-element lens with f/2.2 aperture, True Tone flash, and 1080p video capture with 30 fps video shooting (120 fps shooting at 720p slow motion playback), 1.2-megapixel FaceTime HD camera, Touch ID fingerprint reader built into the home button, M7 motion coprocessor, 802.11n wireless, Bluetooth 4.0, and dual microphones. (Note that a SIM card and the Apple EarPods are not included with this refurbished unit.)
No warranty information is provided.