Back to School DealsSavings is one of our best subjects.Shop now

Skip to content
Main Content

Highlights

  • Key Specs
    • Display Type: LED
    • Resolution: 4K (2160p) (Refers to the number of pixels, both horizontally and vertically, used to capture video/images. The higher the resolution the finer the detail that can be seen.)
    • Screen Size Class: 43 inches (The group size measurement of a screen. This differs from a screen size measured diagonally from corner to corner.)
    • High Dynamic Range (HDR): true (An HDR-compatible 4K TV or other HDR-compatible product displays HDR video content when it's available from sources like 4K Ultra HD Blu-ray Discs and 4K streaming services.)
    • High Dynamic Range Format: HDR 10, Hybrid Log-Gamma (HLG) (There are a few HDR formats that tell the TV or other HDR-compatible product how to best utilize its capabilities to display HDR content. HDR technology can support one or multiple formats, each with various benefits to picture quality.)
    • LED Panel Type: Standard LED
    • Backlight Type: Direct Lit (Edge-lit: lights are on the edges of the display with ~10 zones of vertical LEDs. Direct-lit: lights are on the edges and behind the screen for more light uniformity than Edge-lit. Full array: direct-lit with local dimming for greater contrast with up to 100 zones of LEDs.)
    • Refresh Rate: 60Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
    • Motion Enhancement Technology: Motionflow XR 240 (Proprietary technologies produced in addition to the Refresh Rate that smooth out faster moving pictures to reduce blur and pixelation.)
    • Smart Platform: Google TV (Just like a computer, a smart TV needs an operating system (also called a smart platform) in order to access the Internet, connect with entertainment apps, and play streaming content. Some common TV smart platforms are; Roku TV, Android TV, and Chromecast.)
    • Featured Streaming Services: Apple TV+, Crackle, Disney+, ESPN+, Max, Hulu, Netflix, Paramount+, Peacock, Prime Video, YouTube, YouTube TV (Streaming services and other programs are available on this device. Keep in mind, there may be more services supported than just those shown here.)
    • Number of HDMI Inputs (Total): 3
    • Works With: Amazon Alexa, Google Assistant (Compatible with or able to be connected to other smart devices or applications.)
    • Voice Assistant Built-in: Amazon Alexa, Google Assistant (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
  • General
    • Brand: Sony
    • Model Number: KD43X77L
    • Product Name: 43" Class X77L LED 4K UHD Smart Google TV (2023)
    • Color: Black
    • Series: LED 4K - X77 (Part of a group of the same product type with similar features.)
    • Model Year: 2023
  • Dimensions
    • Product Height With Stand: 25 inches
    • Product Width: 38.37 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Depth With Stand: 10.5 inches
    • Product Height Without Stand: 22.37 inches
    • Product Depth Without Stand: 2.87 inches
    • Product Weight With Stand: 21 pounds
    • Product Weight Without Stand: 20.5 pounds
    • Stand Width: 28.25 inches (The horizontal measurement of the stand/base, or the distance from the outside of one leg to the outside of the opposite leg, as it is attached to the product.)
    • Stand Depth: 10.5 inches
    • Adjustable Stand Width: false (Whether the stand can adjust to have more than one measurement either between the legs or the base itself.)
  • Display
    • Display Type: LED
    • Resolution: 4K (2160p) (Refers to the number of pixels, both horizontally and vertically, used to capture video/images. The higher the resolution the finer the detail that can be seen.)
    • Screen Size: 42.5 inches (Size of the screen, measured diagonally from corner to corner.)
    • Screen Size Class: 43 inches (The group size measurement of a screen. This differs from a screen size measured diagonally from corner to corner.)
    • High Dynamic Range (HDR): true (An HDR-compatible 4K TV or other HDR-compatible product displays HDR video content when it's available from sources like 4K Ultra HD Blu-ray Discs and 4K streaming services.)
    • High Dynamic Range Format: HDR 10, Hybrid Log-Gamma (HLG) (There are a few HDR formats that tell the TV or other HDR-compatible product how to best utilize its capabilities to display HDR content. HDR technology can support one or multiple formats, each with various benefits to picture quality.)
    • Picture Quality Enhancement Technology: 4K HDR Processor X1
    • LED Panel Type: Standard LED
    • Backlight Type: Direct Lit (Edge-lit: lights are on the edges of the display with ~10 zones of vertical LEDs. Direct-lit: lights are on the edges and behind the screen for more light uniformity than Edge-lit. Full array: direct-lit with local dimming for greater contrast with up to 100 zones of LEDs.)
    • Curved Screen: false
    • Refresh Rate: 60Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
    • Motion Enhancement Technology: Motionflow XR 240 (Proprietary technologies produced in addition to the Refresh Rate that smooth out faster moving pictures to reduce blur and pixelation.)
    • Closed Captioning: true (The text version of spoken audio displayed on the screen. Devices that can display closed captioning typically have the option to toggle the feature on or off.)
  • Features
    • Remote Control Type: Voice control
    • Smart Capable: true (Smart, or smart-capable devices are able to connect directly to your home network in order to stream content from the Internet, run Internet-based apps, or connect to other smart devices.)
    • Smart Platform: Google TV (Just like a computer, a smart TV needs an operating system (also called a smart platform) in order to access the Internet, connect with entertainment apps, and play streaming content. Some common TV smart platforms are; Roku TV, Android TV, and Chromecast.)
    • Featured Streaming Services: Apple TV+, Crackle, Disney+, ESPN+, Max, Hulu, Netflix, Paramount+, Peacock, Prime Video, YouTube, YouTube TV (Streaming services and other programs are available on this device. Keep in mind, there may be more services supported than just those shown here.)
    • Screen Mirroring: true (Casts the screen of one device onto another wirelessly, using a common protocol (typically Bluetooth).)
    • Screen Mirroring Technology: Apple AirPlay, Chromecast
    • Indoor Or Outdoor Use: Indoor (Indicates the appropriate environment product was designed to be used in.)
    • Video Description: true (Indicates whether the device features descriptive video service (DVS). This service provides narration of key elements in the program, such as actions, costumes, and scene changes, to help engage visually-impaired audiences.)
    • V-Chip: false (Feature that blocks television programming if it has a content rating outside of the acceptable rating(s) configured by the user.)
    • TV Tuner: Digital (The ATSC TV Tuner is a component built into conventional TV sets or other devices for receiving over-the-air broadcast TV without a cable/satellite box. Digital tuners may be purchased separately and connected to a device if it does not have one built in.)
  • Connectivity
    • Number of HDMI Inputs (Total): 3
    • Display Connector(s): 1 x Composite video, 3 x HDMI 2.1 (The number and type of connectors used to connect to an external display.)
    • Network Connector(s): 1 x LAN
    • Audio Only Outputs: 1 x Optical digital audio
    • HDMI Audio Return Channel (ARC): ARC
    • Wireless Connectivity: Wi-Fi, Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
    • RF Antenna Input: true (This input is used to connect devices such as antennas or cable boxes to a TV via a coaxial cable.)
    • Number Of USB Port(s) (Total): 2 (The total number of USB ports including all generations and versions.)
    • Bluetooth Version: 5.0 (The Bluetooth specification formalized by the Bluetooth Special Interest Group. All versions of the Bluetooth standard are backwards compatible with previous versions.)
  • Compatibility
    • VESA Wall Mount Standard: 200mm x 200mm (VESA wall mount standards refer to the spacing of screw holes built into a TV in order to fit with standard TV wall mounts. These standards are implemented into most TVs and monitors.)
    • Works With: Amazon Alexa, Google Assistant (Compatible with or able to be connected to other smart devices or applications.)
    • Voice Assistant Built-in: Amazon Alexa, Google Assistant (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
  • Audio
    • Built-In Speakers: true
  • Power
    • ENERGY STAR Certified: false (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
    • EPEAT Qualified: false (The Electronic Product Environmental Assessment Tool (EPEAT) was designed to provide an environmental assessment tool for purchasers. In order to qualify for EPEAT, a product must meet all 23 required criteria.)
    • Estimated Annual Operating Cost: 20 United States dollars (Predicted cost of operating the product under average conditions for one year.)
    • Estimated Annual Electricity Use: 159 kilowatt hours (Predicted amount of electricity needed to operate the product under average conditions for one year.)
    • Battery Chemistry (Remote Control): Alkaline
    • Voltage: 120 volts (Amount of power needed to support an electrical current.)
    • Wattage: 125 watts (Measurement of electrical power.)
  • Included
    • Wall Mount Included: false
    • Stand Included: true
  • Warranty
    • Warranty - Parts: 1 year
    • Warranty - Labor: 1 year
  • Box Dimension
    • Height: 27 inches
    • Width: 42 inches
    • Depth: 5 inches
    • CubicDimension: 5670 inches
  • Other
    • UPC: 027242927247

Experience all your favorite content in lifelike 4K HDR picture quality, powered by the 4K Processor X1. All your HD content is upscaled to near-4K resolution resulting in sharp details and real-world colors. Google TV with Google assistant makes it easy to find your favorite movies and shows from all the top streaming apps.

  • Powerful TV processing: See lifelike picture quality in incredible 4K resolution. The powerful 4K Processor X1 enhances the picture to deliver scenes full of rich colors and sharp details. Everything you watch is upscaled close to 4K quality with smooth and clear motion.
  • Beautiful 4K HDR picture: See your favorite content burst to life on screen with High Dynamic Range (HDR) contrast. Every scene is enhanced to make colors and shadows even more natural and precise, so picture quality is closer than every to real life.
  • The entertainment you love. With help from Google.: With 700,000+ movies and TV episodes, live TV, and more available across 10,000+ apps, Google TV takes streaming and live TV to the next level — bringing together your favorite entertainment from across your apps and organizing it all, just for you.
  • Exclusive features for PlayStation 5: Get detailed, responsive game play and feel the action all around you with Sony TV exclusive feature for the PlayStation 5 console. Auto HDR Tone Mapping automatically adjusts the HDR settings of the PS5 console to the TV for detailed, high-contrast scenes.
  • Smooth and clear, even in fast scenes: TV that keeps up with real life. Motionflow XR refresh rate technology keeps movement smooth and clear, allowing fast moving action sequences in sports and movies to be seen with lifelike clarity.
  • Upscale everything you watch: See glorious 4K picture quality, rich with real-world detail and texture. Even content filmed in Full HD are upscaled close to 4K resolution by 4K X-Reality PRO using a unique 4K reference database.
  • Do more on your TV with your voice: Your TV is more helpful than ever. Ask Google to find movies, stream apps, play music, and control the TV – all with your voice. Even get answers, control smart home devices, and more. Press the Google Assistant button on the remote to get started.
  • All your favorite streaming apps in one place: Sony TVs with Google TV give you access to all your favorite streaming apps in one place, including Netflix, Prime Video, Disney+, YouTube, the Apple TV app, HBO Max, Peacock, and many more.
  • Family-friendly smart TV: Discover a fun collection of movies and shows for the whole family. Create a Kids Profile that can help you guide children to age-appropriate content. Set parental controls to restrict what streaming services are shown, limit watching time, and even set bedtimes.
  • Works with AirPlay: With Apple AirPlay support, you can share pictures, video, or audio to your television right from your iPhone, iPad, or Mac. Watch movies and shows from your favorite apps, the Apple TV app, or even from Safari.
Whats Included
  • Television
  • Remote control
  • Batteries
  • AC Power cord
  • Operating Instructions
  • Quick setup guide
  • Warranty
  • Stand
Product Manuals
Documents
  • Energy_Guide_PDF

Q: Does this Sony TV support HDR?

A: Yes, this TV supports HDR10 format.

Q: Does this TV have built-in speakers?

A: Yes, this Sony TV has built-in speakers.

Q: Can I connect this Sony TV to my home Wi-Fi?

A: Yes, this Sony TV has built-in Wi-Fi for network connectivity.

Q: How can I avoid cracking the screen while setting up the TV?

A: To avoid cracking the screen, avoid pinching the screen between your thumb and fingers when lifting the TV.

Q: What is the motion enhancement technology used in this Sony TV?

A: This Sony TV features Motionflow XR 240 technology for motion enhancement.

Q: What is the screen size of this Sony TV?

A: The screen size of this Sony TV is 42.5 inches.

Q: How many HDMI ports does this Sony TV have?

A: This Sony TV has a total of 3 HDMI ports.

Q: What type of remote control comes with this Sony TV?

A: This Sony TV comes with a voice control remote.

Sony - 43" Class X77L LED 4K UHD Smart Google TV (2023)

Model: KD43X77L
SKU: 6544136
$449.99
Finance OptionsView your offers
Special OffersOn related products
Items are covered under Best Buy's Return & Exchange Promise
Sponsored

Compare similar products

Sony - 43" Class X77L LED 4K UHD Smart Google TV (2023)
Sony - 43" Class X77L LED 4K UHD Smart Google TV (2023)

Experience all your favorite content in lifelike 4K HDR picture quality, powered by the 4K Processor X1. All your HD content is upscaled to near-4K resolution resulting in sharp details and real-world colors. Google TV with Google assistant makes it easy to find your favorite movies and shows from all the top streaming apps.

Samsung - 43” Class Q7F Series QLED 4K UHD SamsungVision AI Smart Tizen TV (2025)

Discover a new level of visual and auditory brilliance with our next level smart TV. Powered by Pantone certified color accuracy, witness over one billion authentic hues burst forth in beautiful detail. Quantum HDR takes things further, elevating contrast for lifelike imagery. Add to that our advanced 3D audio system syncing flawlessly with on screen motion, all intelligently powered by Samsung Vision AI. And rest assured, Knox keeps your private info safe and secure.

Sony - 43" Class BRAVIA 3 LED 4K UHD Smart Google TV (2024)

TV just got more exciting with incredibly vibrant picture and easy-to-use smart features. Everything you watch is enhanced with over a billion accurate colors with lifelike clarity and contrast that reveals every detail. Google TV brings together movies, shows, and more from across your apps and organizes them just for you.

Samsung - 43” Class U8000F Series Crystal UHD 4K Smart Tizen TV (2025)

Upgrade your home theater with this stylish 4K TV featuring vibrant colors, rich contrast and an advanced 4K processor. Stay endlessly entertained with thousands of on demand shows and movies for free and enjoy peace of mind as watch thanks to our proprietary triple layer security that protects your personal data across all connected devices at once.

Pros for Sony - 43" Class X77L LED 4K UHD Smart Google TV (2023)
Picture Quality, Ease of use, Price, Color, SetupThere were no pros for this productPicture Quality, Ease of use, Color, Price, SizeThere were no pros for this product
Cons for Sony - 43" Class X77L LED 4K UHD Smart Google TV (2023)
Remote Control, SpeedThere were no cons for this productRemote Control, Google TVThere were no cons for this product

Specs

Compare Additional Products

Reviews

Customers are saying

Customers highly value the 43" Class X77L LED 4K UHD Smart Google TV for its exceptional picture quality, easy setup process, and reasonable price point. Many customers specifically mentioned the stunning and sharp picture, user-friendly interface, and great value for the features offered. While some mentioned a preference for a larger remote control, the overall positive feedback highlights customer satisfaction with the product's core features.

This summary was generated by AI based on customer reviews.

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

    It’s a keeper

    Great color sound and easy I mean easy setup. Perfect size nice looking. Not surround sound but you can buy a sound bar.

    Posted by AdelineT

  • Rated 5 out of 5 stars

    Living room TV

    I have never had a tv in my living room before. My grandson has been getting interested in sports & history shows, so I finally relented and decided to purchase one. I searched and read I can’t tell you how many reviews before I decided to purchase this specific television. The space I needed for hanging on the wall wasn’t huge and I didn’t want it to overpower the room or space so I went with this one. It is perfect in every way possible. I have had a dozen compliments on how nice it looks mounted on my wall and that the size is like it was made to fit. The picture is the best, clear, colors & sound are great. I’m so pleased and my grandson is delighted to say the least that we have a tv in our living room.

    Posted by NancyC

  • Rated 5 out of 5 stars

    Great economical choice

    The picture quality of this TV is excellent, and the Android OS provides a wide range of options to enhance the experience. The built-in microphone on the remote is incredibly convenient and makes navigation effortless. While the UI performance can be a little slow at times, it’s still reasonable, especially considering the price point. Sony’s regular updates have kept the system running smoothly, and I haven’t encountered any issues so far. Overall, it’s a great value for the money!

    Posted by Shagga

No content
Sponsored

Similar products from outside of Best Buy

sponsored

Finance Options

My Best Buy® Credit Card
Choose a benefit:
$37.50/mo.
suggested payments with 12-Month Financing
Or
15% back in rewards
on first day of purchases when you are approved for the My Best Buy® Credit Card. Offer ends 9/1/25.
Buy Now, Pay Later
8 payments starting at $56.25

Special Offers

Included with Purchase
Free item with purchase