Walmart offers the refurbished Vizio 55" 4K 2160p LED-Backlit LCD Ultra HD Smart TV, model no. M55-C2, for $559.99 with free shipping. That's $358 under the lowest total price we could find for a new one, although we saw a refurb for $10 less in April. It features a 3840x2160 resolution (four times that of 1080p), 120Hz refresh rate, WiFi, Internet Apps (Netflix, Hulu Plus, Amazon Video, more), and five HDMI ports.
No warranty information is available.