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Toshiba LF621U21 4K TV Fire TV Edition Price and Specs

Toshiba LF621U21 4K Television The Fire TV Edition is a new generation of television with a built-in Fire TV experience that seamlessly integrates live over-the-air TV and streaming channels on a unified home screen with as much content from Disney+, Netflix, Prime Video, Hulu, and more.

This TV also has 4K Ultra HD (2160p resolution), DTS Studio Sound, and an Amazon Alexa Voice Remote, allowing you to issue commands to the Amazon smart assistant to navigate the TV interface or call up a specific movie, show, or app.

The TV is powered by a quad-core CPU/multi-core GPU for fast and fluid responsiveness and instant search results. It has Dolby Vision HDR, which provides enhanced 4K HDR picture quality with a wider range of contrast and superior brightness.

Toshiba LF621U21 4K TV Fire TV Edition Key Features

  • 4K Ultra HD (2160p resolution)
  • 43-inch, 50-inch, 55-inch
  • 3 HDMI Ports
  • Fire TV built-in
  • Voice Remote with Alexa
  • 60 Hz Refresh Rate
  • Dolby Vision HDR
  • DTS Virtual X
  • Dual-band Wi-Fi
  • Quad-core CPU/Multi-core GPU
  • Hands-free control


The Toshiba LF621U21 4K TV Fire TV Edition has a simple design and a reasonably thick glossy plastic body. It has a slim bezel frame around the screen.

Although the TV bezel is thin, it contains the Toshiba logo, as well as a single power and input selection button in the center of the bottom bezel.

This TV has dimensions of 11.54 x 48.86 x 30.71 inches and still has enough space on the side for a single power and input selection button for manual control.

Furthermore, the Toshiba LF621U21 4K TV Fire TV Edition has various interface ports on the left side, including one USB port, three HDMI ports, an optical digital audio port, and a headphone jack.

This TV also has a flat panel that makes it simple to mount if you want to hang it on the wall. An Ethernet port, an antenna/cable connector, and an RCA composite video input all face downward on the back panel. The only physical controls are a power/input button in the lower right corner of the back of the TV.

It has two well-fitted legs that are perfect for standing the TV on a cabinet, despite being a little closer together and angled more sharply.


The Toshiba LF621U21 4K TV Fire TV Edition is built on an LCD LED panel with 4K Ultra HD (2160p resolution) rather than the standard 1080p resolution found on higher variants to provide picture quality with lifelike detail, rich contrast, and brilliant colors.

Toshiba employs direct LED backlighting with no local dimming, which is a significant disadvantage when compared to other TVs in its class. This television has a high contrast ratio and well-defined outlines.

The Toshiba LF621U21 4K TV Fire TV Edition boasts incredible contrast and black level performance, good saturation and accurate colors, and great clarity and picture detail across gaming and viewing modes, thanks to its improved motion resolution 60hz refresh rate.

This TV supports high dynamic range (HDR), so it can preserve fine detail in the image’s brightest and darkest areas to provide incredible picture quality.

The Toshiba LF621U21 4K TV Fire TV Edition is available in three different screen sizes, including a 43-inch, a 50-inch, and a 55-inch, so you can pick and choose.

Other Specs and Features

The Toshiba LF621U21 4K TV Fire TV Edition includes an optional basic mode that allows you to use the TV without the smart features.

Furthermore, the Toshiba LF621U21 includes a 2.0-channel audio system with DTS Virtual X support, which contributes to a more immersive and high-quality audio experience.

This TV also includes a Fire TV remote. It comes with a slim black plastic wand and a large glossy black circular navigation pad.

The remote has three menu buttons above the pad and three playback buttons below, as well as power and microphone buttons on the top near a pinhole mic and dedicated buttons for home, back, menu, and media playback controls.

Above all, the remote sends signals via infrared as well as Bluetooth, allowing you to control the TV even if the Bluetooth connection is lost, without having to re-pair the remote.

Toshiba LF621U21 4K TV Fire TV Edition Price and Availability

The Toshiba LF621U21 4K TV Fire TV Edition starts at $319.99 for the base model and increases depending on the display screen and features.

These TVs are available from reputable online retailers and major retail chains.

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