Everything for Back to School — and then someShop now

Skip to contentGo to Product Search
Main Content
Only at Best Buy

Pioneer - 55" Class LED 4K UHD Smart Roku TV

Model: PN55-R851-26U
SKU: 6623796
Sold byBest Buy

Customers are saying

Customers find value in the fantastic picture quality and the straightforward setup process that makes installation a breeze. Users also appreciate the convenient size, lightweight design, and seamless connectivity to various smart apps. While the overall experience is highly positive, some users noted that the screen brightness did not meet their expectations.

Generated by AI based on customer reviews.

Highlights

Features
  • Endless entertainment

    Enjoy over 500 channels with live news, sports, and more—totally free. You can also watch your favorite streaming apps such as Netflix, Disney+, Peacock, Hulu, and more.

  • 4K Ultra HD

    Your favorite shows are brought to life in stunning 4K ultra high definition.

  • Dolby Audio

    Your speakers are optimized for crystal clear audio, so you won’t miss a single detail.

  • Direct Lit

    Direct lighting LED panel improves picture quality with a uniformly bright screen that has more color accuracy and improved contrast.

  • No nonsense remote

    With only the buttons you need, we like to think it’s the easiest TV remote ever made.

  • Apple Airplay support

    Wirelessly share photos, videos and music to your TV.

  • HDR 10

    With HDR10 enjoy a more lifelike picture thanks to precisely defined brightness and color levels. This advanced technology delivers deeper blacks, brighter whites, and a broader range of colors.

See all features
Specifications
  • Display Type
    LED
    Resolution
    4K (2160p)
    Screen Size Class
    55 inches
    High Dynamic Range (HDR)
    Yes
    High Dynamic Range Format
    HDR 10
Sponsored

Reviews

Customers are sayingCustomers find value in the fantastic picture quality and the straightforward setup process that makes installation a breeze. Users also appreciate the convenient size, lightweight design, and seamless connectivity to various smart apps. While the overall experience is highly positive, some users noted that the screen brightness did not meet their expectations.
This summary was generated by AI based on customer reviews.
  • Picture Quality (225)
  • Setup Ease (50)
  • Size (9)
  • Connectivity (7)
  • Smart TV Features (6)
  • Brightness (4)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    Roku Tv

    I bought this Pioneer 55-inch 4K UHD Roku TV a few weeks ago and I’m very happy with it. The picture quality is excellent — the definition and sharpness are outstanding, colors are vibrant, and HDR looks great. Everything looks crisp whether I’m watching movies, sports or YouTube. The sound is surprisingly very good for a TV. The built-in speakers deliver clear dialogue and decent bass without needing a soundbar right away (though I may add one later for even better experience). The Roku system is super fast and easy to use. No lag, quick loading of apps like Netflix, Disney+, Hulu, etc. Setup was very simple and it connected to my Wi-Fi immediately. Design is modern and slim, perfect for my living room. Great value for the price at Best Buy. Highly recommended if you’re looking for a big 4K smart TV with excellent picture and solid sound!

    Posted by Aaron

  • Rated 5 out of 5 stars

    Fantastic bargain TV

    I wanted a basic TV to stream things on . This was surprisingly a great TV . Set up was within a couple of minutes and the picture quality is fantastic for the price . Sound system is good right out of the box . The main reason I purchased this is because I’m sick of other brands pushing their brand to the front of everything and just making it difficult to operate . This TV is so basic and the remote literally has only a few buttons . My other requirement was the TV depth as it was going to sit on an antique easel . This fit the bill and was a bargain to boot .

    Posted by HappyinBrookhaven

  • Rated 5 out of 5 stars

    Solid, well built, TV,

    A good value for size and features. Though it's not QLED or highest, newest model, We replace an old tv that glitched out and loaded very slow, so it feels like a big upgrade to us. This also feels like a physically solid and well built TV, unlike many of the bargain brand TV's that are infamous for lasting less than a couple years. Thank you BestBuy for the opportunity to share my review.

    Posted by RichardC

  • Rated 5 out of 5 stars

    What a deal!

    Excellent picture and sound. Ridiculously easy to set up. Incredible TV at an insane price!

    Posted by ToddE

  • Rated 5 out of 5 stars

    Just the right size for me

    Easy setup, it started talking to us as soon as we plugged it in. Excellent colour. I like Roku and have been using Roku for years now. Sound quality is better than the last two GE Roku TVs I have owned.

    Posted by DennisB

Compare similar products

Pioneer - 55" Class LED 4K UHD Smart Roku TV
Pioneer - 55" Class LED 4K UHD Smart Roku TV

Experience endless entertainment with access to all your favorite streaming apps, live news and sports, in-season TV, hit movies, and Roku Originals. And with an 4K ultra high-definition screen and Dolby Audio, you’ll enjoy spectacular images and sound that bring it to life. The Pioneer 55-inch Class LED 4K UHD Smart Roku TV is the perfect way to upgrade your downtime.

Hisense - 58" Class QD50 Hi-QLED Series 4K UHD Smart Roku TV (2026)
5.0(4)

Bring home brilliant color and everyday entertainment with the Hisense QD5 Series. Powered by Hi-QLED Color technology, it delivers vibrant images with enhanced brightness and realistic contrast, making movies, sports, and games feel more lifelike. Dolby Vision* support helps reveal greater depth and detail across every scene, while AI 4K Upscaler enhances lower-resolution content for a sharper, more refined picture. Game Mode Plus, featuring Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM), helps keep gameplay smooth and responsive, while DTS Sound creates immersive, room-filling audio for a more engaging entertainment experience. Whether you're streaming your favorite shows, gaming with friends, or enjoying live sports, the Hisense QD5 Series is designed to elevate every moment with impressive picture quality and immersive sound. Built on the Roku TV platform, it also makes it easy to discover and enjoy a wide selection of streaming apps, live TV, and entertainment options.

Pioneer - 40" Class LED Full HD (1080p) Smart Roku TV

Experience endless entertainment with access to all your favorite streaming apps, live news and sports, in-season TV, hit movies, and Roku Originals. And with a 2K full high-definition screen and Dolby Audio, you’ll enjoy spectacular images and sound that bring it to life. The Pioneer 40-inch Class LED 2K FHD Smart Roku TV is the perfect way to upgrade your downtime.

Pioneer - 65" Class LED 4K UHD Smart Roku TV

Experience endless entertainment with access to all your favorite streaming apps, live news and sports, in-season TV, hit movies and Roku Originals. And with an 4K ultra high-definition screen and Dolby Audio, you’ll enjoy spectacular images and sound that bring it to life. The Pioneer 50-inch Class LED 4K UHD Smart Roku TV is the perfect way to upgrade your downtime.

Pros for Pioneer - 55" Class LED 4K UHD Smart Roku TV
Picture Quality, Setup Ease, Size, Connectivity, Smart TV FeaturesThere were no pros for this productPicture Quality, Setup Ease, Size, Weight, ConnectivityPicture Quality, Setup Ease, Size, Weight, Performance
Cons for Pioneer - 55" Class LED 4K UHD Smart Roku TV
BrightnessThere were no cons for this productDurability, Button Layout, Volume LevelConnectivity

Specs

Questions & Answers
  • Does this TV support screen mirroring?

    Yes, this TV supports screen mirroring functionality.

    This question and answer was generated by AI based on customer and product data.
  • What kind of audio does this TV support?

    This TV supports Dolby Audio.

    This question and answer was generated by AI based on customer and product data.
  • Does this TV support Apple AirPlay?

    Yes, this TV has Apple Airplay support.

    This question and answer was generated by AI based on customer and product data.
  • Are batteries included with the remote control?

    Yes, two batteries are included with the remote control.

    This question and answer was generated by AI based on customer and product data.
  • Does this TV have built-in speakers?

    Yes, this TV has built-in speakers.

    This question and answer was generated by AI based on customer and product data.
Ask a question
No content

Customers often buy these together

Sponsored

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
Lease to own

Special Offers

Top Offers
Included with Purchase

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
Lease to own

Special Offers

Top Offers
Included with Purchase