Walmart offers Vizio 50″ 4K HDR Ultra HD Smart TV on sale from $298.00 to just $210.00. Shipping is free. This is a refurbished product. It features value and quality come together beautifully in the VIZIO 50â Class 4K Ultra HD (2160P) HDR Smart LED TV (D50x-G9). With a budget-friendly combination of 4K resolution, high dynamic range, Smart TV apps, and voice control compatibility with select devices, the D-Series gives you the best features at the smartest value.