Dell Home offers the Vizio SmartCast 50" 4K 2160p LED-Backlit LCD Ultra HD Smart Display, model no. E50x-E1, bundled with a $150 Dell Gift Card, for $449.99 with free shipping. (The gift card will arrive via email 10 to 20 days from ship date.) Assuming you'll use the gift card, that's $98 under our March mention and the lowest price we've seen. (It even beats its price from Black Friday week; it's the best deal now by $142.) It features a native resolution of 3840x2160 (2160p), Smart TV apps, and four HDMI inputs. Deal ends July 31.