INSIGNIA NS-43DF710NA21 4K Fire Smart TV, 43-Inch

Last updated date: July 12, 2021

DWYM Score

9.5

INSIGNIA NS-43DF710NA21 4K Fire Smart TV, 43-Inch

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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.

Update as July 6, 2021:
Checkout The Best 4K TV for a detailed review of all the top 4k tvs.

Overall Take

If you're looking to combine live TV with the ability to stream over 500,000 shows and movies, this smart TV is for you! You'll enjoy 4K Ultra HD picture quality, as well as a remote that controls both your television and home appliances. This unit is also Alexa compatible.


In our analysis of 84 expert reviews, the INSIGNIA NS-43DF710NA21 4K Fire Smart TV, 43-Inch placed 1st when we looked at the top 22 products in the category. For the full ranking, see below.

From The Manufacturer

Fire TV Edition brings together live-over-the air TV and your streaming content on the home screen. Connect any HD antenna (sold separately) to watch live over-the-air TV or stream movies and shows from Disney+, Netflix, YouTube, Prime Video, Hulu, and more. Experience breathtaking 4K Ultra HD picture quality with over 8 million pixels for stunning clarity, deep contrast and vivid colors. Watch movies and TV shows come to life in ultra high definition. Everything you’d expect from a remote – plus launch apps, search for TV shows, switch inputs, control smart home devices and more, using just your voice. With Prime Video, Netflix buttons, instantly access your favorite apps. This TV is smart and simple in every way. Just plug it in, connect to Wi-Fi and enjoy. Plus, your TV keeps getting smarter with new Alexa skills and features through automatic over-the-air software updates, so that you always have the latest. Item arrives in packaging that reveals what’s inside and can’t be hidden.

Expert Reviews

User Summarized Score

9.2
10,729 user reviews

What experts liked

What experts didn't like

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.

An Overview On 4K TVs

Televisions have likely come a long way since the last time you were in the market for a new screen. TVs have followed the typical tech trajectory of slimming down and dropping weight while increasing screen sizes. Even if your current TV is only a couple years old, technology has skyrocketed in that time to produce incredible visual effects. That’s largely due to the introduction of 4K TVs. These 4K TVs bring along crisper, brighter and more colorful picture quality than ever before.

There are truly outstanding 4K TVs available with four times the amount of pixels as their 1080p predecessors. On top of that, they boast the latest and greatest screen technology. All of that adds up to the ultimate in viewing experiences, no matter what you choose to watch. Quite frankly, you’ve never seen your favorite shows or anything from around the world so vividly from the comfort of your couch.

But all these new and improved features can make choosing a new TV complex and confusing. There are many new numbers and acronyms in the descriptions that can sound like a foreign language to a new buyer. However, armed and ready with a bit of knowledge and a few tools of the trade, you can make an informed purchase and find the best 4K TV for you.

One of the first factors to consider is size. Measure and understand how much space you have for your TV. You’re more likely to mount a 4K TV on your wall than set it on a console, but some models have legs and can sit on a stand. It’s worth noting, these legs are generally at the outer edges of the TV, instead of in the center, affecting the overall dimensions of the stand. Additionally, TVs are measured diagonally, so take that into consideration when you assess your space and size needs.

“If you take away one thing from this guide, it’s that size matters,” Patrick Ward, editor-in-chief of the blog High Speed Experts, says. “Specifically, when buying a 4K TV, don’t hold back. The whole reason for getting a 4K TV is that you value picture and audio quality — that cinematic experience can only be achieved with a massive 4K TV.”

Now, the standard resolution is 4K Ultra HD, which offers four times the pixel resolution as previous 1080p HD. That means crisper, more detailed images. It also lets you sit closer to larger TVs without the usual image degradation.

Pixels alone aren’t responsible for the wow factor that comes with 4K TVs. For that, you need to dive into the additional differentiating acronyms. When you combine screen technology like High Dynamic Range (HDR) and Wide Color Gamut (WCG), that’s when those extra pixels really pop.

What’s more, these 4K TVs have all the features you need seamlessly integrated. They are smart TVs. That means there are no more gadgets or cords required to connect to apps, streaming services and more. It’s all in one.

The latest and greatest technology doesn’t always come cheap. While there are some excellent budget-friendly buys in the top 4K TVs, there are also spendier versions. The budget-friendly models are more basic. Then, you can quickly add on more fancy features that increase the price.  Premium TVs deliver much more than a standard TV viewing experience. In fact, some models include a new mode that displays decorative content, useful information, personal photos or background music to blend with and enhance your interior décor.

“What used to be a hefty chunk of change for folks, is now quite affordable for the majority of households,” Ward points out. “Don’t have all the cash upfront? Putting it on a payment plan can make the monthly repayments virtually unnoticeable.”

You can rest assured it’s a good time to upgrade your TV. There are always updates and new technology in the works, but the next big change to 8K resolution is still a ways off. 

The 4K TV Buying Guide

  • Remember to measure twice before selecting a new 4K TV. The screen measurements listed on TVs reflect the diagonal distance on the screen. The other measurement is the width of the TV, for sitting on a stand as well as hanging on the wall.
  • The newest 4K TVs have four times the pixels of the previous 1080p TVs from a few years ago.
  • There is new, advanced pixel technology in the works. However, it is a few years away still, so it’s a good time to upgrade to the latest and greatest 4K TVs available now.
  • The larger the number of pixels, the closer you can sit to the TV and still see a crisp clear image.
  • The new 4K TVs vary widely in price, so researching each of their distinguishing features could help you choose a more cost-friendly option.
  • The official resolution for 4K TVs is 3,840 by 2,160, so they are just shy of truly 4,000. The simplified description is much more user-friendly, so it stuck.