Best Buy offers the open-box Sony Handycam AX33 4K WiFi Flash Memory Camcorder, model no. FDRAX33/B, for $719.99 with free shipping. (Click "Open-Box from $719.99" at the top of the page.) That's $140 under the lowest total price we could find for a new one. It features 4K video recording, a 2.7" LCD screen, 10x optical zoom, 802.11n wireless, USB, and SteadyShot image stabilization.

Of note, no warranty information is provided.