Toshiba - 55" Class LED 4K UHD Smart Fire TV

Name: Toshiba - 55" Class LED 4K UHD Smart Fire TV
Brand: Toshiba
SKU: 6394762
Rating: 4.4 (1976 reviews)

Model: 55LF621U21

SKU: 6394762

This item is no longer available in new condition. See similar items below

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: 55 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, Dolby Vision, 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.)
- Specific Manufacturer Technologies: Fire TV Experience, Dolby Vision HDR, Voice Remove with Alexa (This is technology that's specific to a TV brand (sometimes called proprietary technology). Here you'll see terms related to picture quality, brightness, processors and more.)
- Smart Platform: Fire 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+, Disney+, Hulu, Netflix, Prime Video, Sling TV, YouTube (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 (Compatible with or able to be connected to other smart devices or applications.)
- Voice Assistant Built-in: Amazon Alexa (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
General
- Brand: Toshiba
- Model Number: 55LF621U21
- Product Name: 55" Class LED 4K UHD Smart Fire TV
- Color: Black
- Series: Smart 4K Fire TV with Dolby Vision (Part of a group of the same product type with similar features.)
- Model Year: 2021
Dimensions
- Product Height With Stand: 30.7 inches
- Product Width: 48.81 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: 11.5 inches
- Product Height Without Stand: 28.6 inches
- Product Depth Without Stand: 3.5 inches
- Product Weight With Stand: 30 pounds
- Product Weight Without Stand: 29.5 pounds
- 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: 54.6 inches (Size of the screen, measured diagonally from corner to corner.)
- Screen Size Class: 55 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, Dolby Vision, 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: HDR Compatible
- 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.)
- Maximum Contrast Ratio (Native): 4000:1 (The difference between the brightest and the dimmest a screen panel can be. A higher contrast produces more in-depth images.)
- Language(s) Displayed: English, French, Spanish (The available language options for displayed text or captions.)
Features
- Remote Control Type: Standard
- Specific Manufacturer Technologies: Fire TV Experience, Dolby Vision HDR, Voice Remove with Alexa (This is technology that's specific to a TV brand (sometimes called proprietary technology). Here you'll see terms related to picture quality, brightness, processors and more.)
- 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: Fire 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+, Disney+, Hulu, Netflix, Prime Video, Sling TV, YouTube (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
- V-Chip: true (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
- 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): 1 (The total number of USB ports including all generations and versions.)
- Headphone Jack: true (The device features an interface that allows for the connection of headphones.)
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 (Compatible with or able to be connected to other smart devices or applications.)
- Voice Assistant Built-in: Amazon Alexa (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
Audio
- Built-In Speakers: true
- Speaker Output: 20 watts
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: 33 United States dollars (Predicted cost of operating the product under average conditions for one year.)
- Estimated Annual Electricity Use: 267 kilowatt hours (Predicted amount of electricity needed to operate the product under average conditions for one year.)
- Rechargeable Battery (Remote Control): false
- Battery Size (Remote Control): AAA (The battery size required for operation.)
- Number Of Batteries Required (Remote Control): 2
- Number of Batteries Included (Remote Control): 2
Included
- Stand Included: true
Box Dimension
- Height: 33.07 inches
- Width: 52.95 inches
- Depth: 6.3 inches
- CubicDimension: 11032 inches
Other
- UPC: 600603258183

Indulge in a great viewing experience with this 55-inch Toshiba Smart Fire TV. The built-in voice remote supports smooth hands-free operation, while the 60Hz refresh rate delivers high-quality pictures. This Toshiba Smart Fire TV has a 2160p resolution that produces sharp visuals on the LCD screen, and the Wi-Fi connectivity lets you stream your favorite movies.

Voice remote with Alexa: Use your voice to watch live TV, launch apps, search for titles, play music, switch inputs, control smart home devices, and more.
Endless Entertainment: Watch over 500,000 streaming movies and TV episodes with access to tens of thousands of channels, apps, and Alexa skills.
Access your favorite content: Fire TV seamlessly integrates live over-the-air TV and streaming channels on a unified home screen.
4K Ultra HD (2160p resolution): Enjoy breathtaking 4K movies and TV shows at 4 times the resolution of Full HD, and upscale your current content to Ultra HD-level picture quality.
Watch high dynamic range (HDR) content on your TV: With an HDR-compatible 4K TV, you can enjoy HDR movies and TV shows, in addition to all your current content.
Smart TV with access to streaming services for countless entertainment options: Stream shows, movies, games and more with the TV's integrated apps.
Supports Apple AirPlay: Share videos, photos, music and more from an Apple device to your TV with the touch of a button.
Voice remote with Alexa: Use your voice to watch live TV, launch apps, search for titles, play music, switch inputs, control smart home devices, and more.
Endless Entertainment: Watch over 500,000 streaming movies and TV episodes with access to tens of thousands of channels, apps, and Alexa skills.
Access your favorite content: Fire TV seamlessly integrates live over-the-air TV and streaming channels on a unified home screen.
4K Ultra HD (2160p resolution): Enjoy breathtaking 4K movies and TV shows at 4 times the resolution of Full HD, and upscale your current content to Ultra HD-level picture quality.
Watch high dynamic range (HDR) content on your TV: With an HDR-compatible 4K TV, you can enjoy HDR movies and TV shows, in addition to all your current content.
Smart TV with access to streaming services for countless entertainment options: Stream shows, movies, games and more with the TV's integrated apps.
Supports Apple AirPlay: Share videos, photos, music and more from an Apple device to your TV with the touch of a button.

Whats Included

55" Class LED 4K UHD Smart Fire TV
Remote control
Stand
55" Class LED 4K UHD Smart Fire TV
Remote control
Stand

Product Manuals

Documents

Energy_Guide_PDF
Energy_Guide_PDF

Q: What's the best tv stand with a mount?

A: The VESA mounting pattern is 200 x 200 mm.

Q: can you use just antenna or do you have to buy fire or roku to make this work?

A: Yes, you can just use an antenna (not included). You don't have to buy Fire TV / Roku for this to work.

Q: what size stand is needed for this tv

A: 47.5" minimum. Coincidentally this is what mine is and it fits with only 1/2 inch on either side to spare

Q: What type of screws are used to mount the tv on a tv stand with mounting????

A: It's either an M% or an M6. Sorry I forgot which. Needed 1 to put on wall mount. Lost 1 some where.

Q: Is this HDR compatible? I know it has Dolby Vision, but am not sure if that means HDR compatible. I am trying to figure out the difference between this and the TF-55A810U21 .

A: There are 2 differences I have been able to see. I have also been searching these 2 TVs. They seem to be identical with very minor differences. The feet placement and style are different, and the LF 621 has 20 watts speaker vs 10 watts speaker for the A810. Supposedly the LF621 is the newer model...

Q: Is this compatible with HBO Max?

A: Currently the Firestick does not have HBO Max as an App you can download. However, the is a workaround you can find if you Google it. You can download the HBO Max yourself and install it. I did that about 3 months ago and watch HBO Max regularly.

Q: You What size length of bolt do i need to mount my Toshiba 55 inch tv model 55LF621U21?

A: The screws for the wall mount are M6 × 35 mm.

Q: Does this TV have bluetooth where I can pair some headphones?

A: Yes. On Settings, Controllers & Bluetooth option is where you pair it.

Customers are saying

Customers appreciate the 55" Class LED 4K UHD Smart Fire TV for its exceptional picture quality, easy setup, and reasonable price. Many users rave about the stunning visuals and impressive sound quality, while others find the user-friendly interface and Fire TV integration to be convenient and user-friendly. However, some customers have concerns about the product's durability and lifespan, with reports of remote control issues, short lifespans, screen issues, and instances where the TV stopped working completely.

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
We love it, you should get this!!
As an avid review hunter, lemme tell you, get this thing if you can. We really love this! It took a lot of time to find a TV that had good reviews, was the right size, and wasn't astronomically priced (granted, we got this one on sale for $419 instead of $479). Either way, if I'd known how great it is, I think we would have flexed the extra $60. It was really straight forward to set up, it has all the apps that I want available to download (was happy to see tubi there!) and the picture quality is excellent. You can put your amazon account on it if you have one! I actually like the home screen default, like it doesn't default to the cable. It displays all of your apps and inputs. And! I can't think of anything else useful to share about why it's nice! It's just great! So basically, we love it! I will say, really check the styrofoam in the box for your remote because we really could not find it for 30 min and nothing in the set-up manual said it was in the styrofoam lol it was in a little crevice, so make sure you check the box thoroughly!
Posted 4 years ago by Vega
Rated 4 out of 5 stars
Very good TV, no wall mounting screws enclosed.
Toshiba 55" tv - easy set up, great picture, good price. The extra bonus was the free Echo Dot with purchase. The only negative i have, is that Toshiba did not include the 4 mounting screws for a wall mount. That is frustrating, because my previous tv had a completely different size screw, so i could not use them. For now, i had to install the stand feet and set it on a console, while i order and wait for a set of 4 simple M6 screws and spacers. I cannot understand why Toshiba chose to not include the screws, for what, a dollar? Otherwise, the tv is good.
Posted 4 years ago by Equestrienne2002
Rated 5 out of 5 stars
Great value for money. An in-depth review:
Great TV even at $400+, though the price has dropped significantly in the past. Some people have described interlacing issues when using cable boxes through HDMI, so definitely do more research if you'll be using one. I only use it for streaming and gaming and it works great for that. Here are some thoughts as a first time 4K and Smart TV owner after using it for a week. Display: Colors are vibrant and the picture is sharp. 1080p content gets automatically upscaled and looks way better than on my 27" 1080p monitor. I definitely see 2160p mode running (e.g. on Youtube), not sure why some people say they are seeing only 2160i. Compared to the high end 4K TVs however, there are some compromises like significant gradient color banding and poor grey uniformity (patchy effect when a large portion of the screen has a single color). The banding issue is most noticeable on splash screens, dark areas of videos and when projecting a PC screen. For the price, I think these issues are acceptable. Remote: I've never really liked Smart Assistants because I just prefer using my phone/laptop to manually do everything. But Alexa on the TV remote is a great addition and it makes searching for things or opening apps much quicker than using the arrow keys. I like that it only activates the microphone when you press the button on the remote. Very impressed by the remote to be honest. Smart Features: Pretty much all the apps you expect from a modern smart TV. I like that the OS is not locked down like Roku and some other platforms, so you can sideload and run pretty much any Android app. One down side of being an integrated smart TV is that as the OS and applications get more CPU intensive with updates, performance will likely start to go down over the years. There's no way to swap out the hardware like you can with a discrete Fire stick, so I expect that the built-in smart UI will be unusable in 3-4 years. I wish they had chosen a faster processor to be honest - there are some stutters when browsing the menu because it can't keep up with loading images and other content. But eventually you can always attach an external smart device and have it switch to that automatically on startup. Gaming: I tried my Nintendo Switch and had a good experience. I had to change the picture setting to Game mode to get the lowest possible latency, it was pretty much unplayable on the default mode. I'm glad I chose this TV over the Insignia because the Game mode on this one is much better. Sound: Built-in speakers get loud and are bass-heavy. The TV supports Bluetooth headphones which is great because my room has terrible acoustics. There is of course some audio delay when using Bluetooth audio. Some apps like Youtube are able to compensate automatically. The system settings popup also has an option to advance the audio by up to 200 milliseconds to help compensate for the Buetooth delay. However I still suffered from some audio delay when using most apps or when gaming using my Bluetooth headphones. Perhaps more expensive headphones could fix that - mine are $20 no-name ones. Overall, my impressions are very positive. I'm looking forward to enjoying this TV and would definitely recommend it to anyone looking for a TV in the <=$400 range.
Posted 4 years ago by Jayanth