VIZIO D-Series Flat 4K TV, 40-Inch

Last updated: June 2, 2022


We looked at the top 4K TVs and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best 4K TV you should buy.

Product Details

In our analysis of 80 expert reviews, the VIZIO D-Series Flat 4K TV, 40-Inch placed 16th when we looked at the top 17 products in the category. For the full ranking, see below.

From The Manufacturer

The all-new 2016 D-series 43” (43” diag.) Full-Array LED Smart TV has arrived. Featuring brilliant picture quality, and faster, easier-to-use smart TV experience, the all-new D-series brings you premium HD entertainment at an incredible value. Built-in high-speed Wi-Fi gets you connected in a snap, and with the hottest apps to choose from like Netflix, Xumo, iHeartRadio, Hulu Plus, Spotify, YouTube and more1. Enjoying what you want, when you want it is easier than ever before. Plus, you get brilliant picture quality using the latest advanced technologies – like Full-Array LED backlighting for superior light uniformity and vivid details with deeper, more pure black levels2. For sports and action fans, D-series includes Clear Action 240, which combines powerful image processing with 120Hz effective refresh rate for enhanced detail in fast action scenes. VIZIO D-series: Incredible picture, unbeatable value. 1High-speed/Broadband Internet service, app subscription and access equipment are required and not provided by VIZIO.

Our Expert Consultant

Patrick Ward 
Editor-in-chief of High Speed Experts

Patrick Ward is the editor-in-chief of High Speed Experts, a broadband connectivity-, search engine- and IT-industry education blog that empowers consumers by open-sourcing information about tech services. He earned his bachelor’s degree in commerce with an emphasis on communications at the University of Sydney. His expertise spans the digital, emerging tech and telecommunications fields.

Expert Reviews


What reviewers liked

The TV offers a 120Hz effective refresh rate, full-array backlighting and a 200,000:1 contrast ratio. This ensures solid image quality.
It did an excellent job displaying the finest detail. Color accuracy was very good, with images generally looking natural.
The Vizio D Series has ok motion handling. It has a panel with a fast response time, which is good because the TV can handle fast action well without much blur.
Sound is adequate for most owners, with preselects available to improve its quality.

What reviewers didn't like

Full HD only
This Vizio TV has only fair motion performance, with significant blurring on our motion tests. Though this model includes Vizio's "Clear Action", a feature designed to reduce motion blur, we found it was ineffective; the image became too dim and flickery. The visibility of blurring on typical program content is often subtle and may not bother most people, but keen-eyed viewers may detect some loss of texture and detail on scenes with movement.
Some stutter is visible, which is due to the lack of motion interpolation that cannot be removed.
Changing channels “takes forever,” owners report. A few reports of dead pixels.
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