HDTV Reviews: VIZIO D40u-D1 40-inch 4k Ultra HD Smart LED TV (2016 Model)

When you go shopping for an ultra high definition smart television, you should make sure that the picture value is incredible, performance is topnotch, and the navigation through various platforms is easy. The VIZIO D40u-D1 D-Series 40″ Class Ultra HD Full-Array LED Smart TV is a smart television that has enhanced 4x the resolution of 1080p. The clarity of TV is exceptional with above 8.3 million-pixels in every image presented. The full backlighting LED and eight LED zones deliver a superior light uniformity at a high contrast.

Picture Quality

The VIZIO D40u-D1 delivers a 4K ultra high definition images with powerful performance and a better picture quality. The machine is driven by ultra-intuitive smart television experience, which makes streaming of your favorite programs easy. The active pixel tuning is a feature that enables you to regulate the pixel level of brightness. The pixels will control the accuracy level of the picture as well as contrast. Coupled with clear the action 240 sports plus action fans will enjoy the processing speeds of the D-series with blazing 120 Hz refresh rate.


The D-series design is modern with all the features of modern smart TVs included in the device. You can watch all your favorite programs in an ultra 4K ultra high definition. The HEVC decoding system allows users to stream events and programs with ease from popular applications such as Netflix and Xumo among others. The HDMI port incorporated in the system enables the TV to receive playback from satellite receivers and cable. Besides, the gaming consoles and Blu-ray player can be added to diversify the service.


Clarity meets contrast with the new television, the 12 active LED zones installed on the television allows it to intelligently adapt to the content displayed on the screen and heighten the contrast ratio to 5,000,000:1. The high resolution is four times the regular with breath taking clarity, the image details are visible, and you experience over 8.3 million pixels per image. You can stream programs online from the variety of applications installed. The navigation is easy, and the full-screen home application makes it easy to discover new applications. This makes the user experience easy and smooth.


  • High-quality image
  • It’s a Smart TV
  • Enhanced performance
  • Stylish, sleek and adept design
  • Navigating through the panel is easy


  • The automatic software update can be challenging to some users
  • The applications are subject to third party terms and conditions


In summary, the VIZIO D40u-D1 D-Series 40″ Class Ultra HD Full-Array LED Smart TV has unique features such as high picture definition and incredible performance. It is a perfect choice for sports and movie fans because the picture contrast will shift according to the image projected. This gives the user a breathtaking view.