Winter SaleEnds 1/19. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product SearchGo to Footer
Main Content

Customer Ratings & Reviews

No content
  • Front. Samsung - 40" Class (40" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV - Black.
  • Angle. Samsung - 40" Class (40" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV - Black.
  • Left. Samsung - 40" Class (40" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV - Black.
  • Alt View 1. Samsung - 40" Class (40" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV - Black.
  • Alt View 2. Samsung - 40" Class (40" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV - Black.
  • Alt View 3. Samsung - 40" Class (40" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV - Black.

Samsung - 40" Class (40" Diag.) - LED - 2160p - Smart - 4K Ultra HD TV

Model:
UN40JU6400FXZA
SKU:
9481007
Highly rated by customers for:
Your price for this item is $509.99
Clearance
The comparable value price is $749.99

Customer reviews

Rating 4.7 out of 5 stars with 509 reviews

Rating Filter

Pros mentioned filter

Cons mentioned filter

96%
would recommend
to a friend

Customers are saying

Customers highly value the picture quality and ease of use of this 40" Class 4K Ultra HD Smart TV. Many appreciate the smart TV features, including the available apps and convenient access to streaming services. While some users noted minor issues with the remote control and screen mirroring, the positive feedback on picture quality and smart features outweighs these concerns. The price point is also frequently cited as a significant advantage.

This summary was generated by AI based on customer reviews.

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.
Page 15 Showing 281-300 of 509 reviews
  • Pros mentioned:
    Ease of use

    Awesome picture

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great steal for the price,it's easy to use .loveit

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    AWESOME TV

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a great TV!!!!!. The image is great !!!!!.

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    Very pleased

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent picture & we're really happy with this TV

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    Best Picture

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best Picture I'm very satisfied with the Samsung 4K

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    great picture

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love my smart tv picture is great and sound good )

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    great tv for the price

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    awesome picture when you watch it with a 4k bluray

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    great tv for the price

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    samsung is a great product especially for smart tv. Clear picture

    I would recommend this to a friend
  • Pros mentioned:
    Price

    Good television.

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good television for a great price. Very happy with the purchase.

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    Good product

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Clear picture good light control cencer a good size for bedroom I will recommend this to my freinds.

    I would recommend this to a friend
  • Pros mentioned:
    Smart tv

    Nice smart tv

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love my new smart tv, have everything I wanted. Nice price.

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    Glad I bought the tv.

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The tv is great I am awed by the clarity of the picture.

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    Great for bedroom

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Nice television with good resolution, great for bedroom

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    great tv

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    the tv so good i like so much good imagen good soun

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    Nice tv for the price

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Overall good, picture sound quality good. But they have cut short in remote......

    I would recommend this to a friend

  • My first 4K TV

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love the definition of 4K. Yes! I would recommend anyone to buy this TV. Got it on an open-box sale and they delivered it to our house. YAY!

    I would recommend this to a friend

  • Great picture!

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I've really enjoyed the TV. One thing I've noticed is that when scenes are dark, the picture is very dark and the clarity is not very good. There may be an adjustment for this, but I haven't spent much time exploring those options. I love having a TV that only weighs about 20 pounds so that I can move it if needed, compared to the 150 pound former 32" TV that was lovely, but I moveable!

    I would recommend this to a friend

  • UHD Picture

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this UHD for a home bedroom. Setup was very easy and picture is excellent. My experience with the smart features is limited but so far so good. Apparently Charter signal is not in UHD but I can't imagine a better picture. The 40" might be a little large for a bedroom.

    I would recommend this to a friend

  • Great TV.

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    So far I am very pleased with this UHD TV. I got the 40 inch as this is the biggest UHD TV that will fit in my bedroom cabinet. Even though there are no UHD shows broadcasted yet, this TV will make regular 1080I look a lot better. Can't wait until cable starts using UHD.

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    awesome picture quality

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great picture quality easy to connect with my phone stream videos

    I would recommend this to a friend
  • Pros mentioned:
    Picture quality

    Love this tv I'm sold on 4k

    |
    |
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This tv is great starter tv on 4K even makes 1080p look like 4K

    I would recommend this to a friend
Page 15, Showing 281-300 of 509 reviews
Sign in or Create Account

Get the latest deals and more.

Best Buy appLearn more
Share on YouTubeShare on InstagramShare on TikTokShare on FacebookShare on PinterestShare on X
Best Buy Canada
AccessibilityTerms & ConditionsPrivacyInterest-Based AdsState Privacy RightsHealth Data PrivacyDo Not Sell/Share My Personal InformationLimit Use of My Sensitive Personal InformationTargeted Advertising Opt OutCA Supply Chain Transparency Act
In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.