Walmart offers the refurbished Vizio SmartCast 55" 4K Flat LED Smart Home Theater Display, model no. E55U-D0, for $319.99 with free shipping. That's tied with our July mention of a refurb and the lowest price we could find for for one today by $84. Features include:
  • 3840x2160 (2160p) native resolution
  • WiFi
  • Vizio SmartCast technology with integrated Google Cast
  • 4 HDMI inputs
Note: A 90-day warranty is included, although it's unclear who backs it.