Toshiba 50LF621U21 50"

Toshiba 50LF621U21 50"

Toshiba 50LF621U21 50" review: specs and price

Toshiba 50LF621U21 50"

Why is Toshiba 50LF621U21 50" better than the average?

  • Pixel density

  • Resolution

    3840 x 2160pxvs6.24MP
  • Width

  • HDMI version

  • Weight

  • Thickness

  • Contrast ratio

  • HDMI ports (side)


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The width represents the horizontal dimension of the product. We consider a smaller width better because it assures easy maneuverability.


We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
We consider a thinner chassis better because it makes the product more compact and portable. Thinness is a feature highlighted by many manufacturers of mobile devices, but it is essential for a wide range of products.
The height represents the vertical dimension of the product. We consider a smaller height better because it assures easy maneuverability.


Pixel density is a measurement of a screen's resolution, expressed as the number of pixels per inch (PPI) on the screen. A higher pixel density translates into more clarity and sharpness for the images rendered on the screen, thus improving the quality of the viewing experience.

3840 x 2160px

Resolution is an essential indicator of a screen's image quality, representing the maximum amount of pixels that can be shown on the screen. The resolution is given as a compound value, comprised of horizontal and vertical pixels.
3.has an LED-backlit display
Toshiba 50LF621U21 50"
Uses LED backlighting, resulting in better image quality, more vibrant colors and richer blacks.
The bigger the screen size is, the better the user experience.
5.has an HDR10-enabled display
Toshiba 50LF621U21 50"
The display supports HDR10, which is an HDR (high dynamic range) video technology. Compared to standard dynamic range (SDR) video, HDR10 video has greater contrast and color depth, resulting in more realistic images.
The frequency at which the screen is refreshed. Higher frequency results in less flickering (less noise) and more natural movement representation in action-intense scenes.
Response time is how long it takes for a display to change the state of pixels, in order to show new content. The less time it takes to respond, the less likely it is to blur fast-changing images.
8.has a display enabled for HDR10+
Toshiba 50LF621U21 50"
The display supports HDR10+, which is an improved version of HDR10 video technology. HDR10+ uses dynamic metadata so that each frame can have its own settings for contrast, brightness, and colors, which results in lifelike images.
9.Has a Quantum Dot display
Toshiba 50LF621U21 50"
Quantum Dot displays use fluorescent nanocrystals that produce different colors depending on their diameter. Quantum Dot displays can thus reproduce a wide range of colors with improved accuracy, as the size of the particles can vary from 2 to 10 nanometers.


1.supports Wi-Fi
Toshiba 50LF621U21 50"
The device can connect to Wi-Fi.
More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
With more USB ports, you are able to connect more devices.
Newer versions of HDMI support higher bandwidth, which allows for higher resolutions and frame rates.
5.supports Wi-Fi 4 (802.11n)
Toshiba 50LF621U21 50"
Wi-Fi 4 (802.11n) is a wireless standard released in 2009. It has faster transfer rates and improved security compared to its predecessors – a, b, and g.
6.is DLNA-certified
Toshiba 50LF621U21 50"
All DLNA-certified products are compatible with one another. When different devices are connected to the same network, data can be transferred easily between them.
The more composite ports a device has, the more devices can be simultaneously connected, such as video game consoles and set-top boxes.
8.supports Wi-Fi 5 (802.11ac)
Toshiba 50LF621U21 50"
802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability, and improved power consumption. It provides advantages for gaming and HD video streaming.
9.has AirPlay
Toshiba 50LF621U21 50"
AirPlay allows wireless connection of Apple devices with external screens or speakers. You may stream computer screen, video and music from iOS devices, play games like on consoles or present your slideshows easily on your TV.


1.supports Dolby Digital
Toshiba 50LF621U21 50"
If the device supports Dolby Digital it can deliver up to six different audio channels (sides) for a much better sound quality.
2.has DTS Surround
Toshiba 50LF621U21 50"
DTS Surround is a high-quality audio codec that supports up to six audio channels, with good bitrates and audio quality.
3.has stereo speakers
Toshiba 50LF621U21 50"
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
4.supports Dolby Digital Plus
Toshiba 50LF621U21 50"
If a device supports Dolby Digital Plus it can deliver up to fourteen different audio channels (sides) with improved bitrates, for a much better sound quality.
Audio output power is based on the number of speakers and their power in watts. High audio output power results in loud, clear sounds.
6.has SRS TheaterSound HD
Toshiba 50LF621U21 50"
SRS devices create an immersive 3D soundfield using only two speakers, simulating the kind of audio experience delivered by devices that support Dolby Digital.
7.has auto volume
Toshiba 50LF621U21 50"
This technology adjusts the volume of the device according with what the video player needs.
8.has DTS-HD Master Audio
Toshiba 50LF621U21 50"
DTS-HD Master Audio supports unlimited surround sound channels and lossless audio. This standard delivers one of the best possible audio qualities.
9.supports Dolby Digital MS10
Toshiba 50LF621U21 50"
If a device supports Dolby Digital MS10 it can decode Dolby Digital and Dolby Digital Plus.


1.has a sleep timer
Toshiba 50LF621U21 50"
A sleep timer is a function that shuts off the power after a preset amount of time.
2.has a search browser
Toshiba 50LF621U21 50"
With a search browser app, you can surf the internet from your device.
When covered under the manufacturer’s warranty it is possible to get a replacement in the case of a malfunction.
4.supports text-to-speech
Toshiba 50LF621U21 50"
This enables your device to verbalize on-screen content.
5.has a physical QWERTY keyboard
Toshiba 50LF621U21 50"
Text messaging is much faster due to a hardware keyboard.
6.has voice commands
Toshiba 50LF621U21 50"
You can use your voice to control key functions of the device and you can easily access your device without pushing any button.


With a standard mini jack socket, you can use the device with most headphones.
2.supports total tilt
Toshiba 50LF621U21 50"
Total tilt adjustment is the ability for the monitor head to move up and down. Tilt adjustment enables a user to change the viewing position of the display, creating a more comfortable view of the screen.
3.Has a swivel stand
Toshiba 50LF621U21 50"
A swivel stand allows you to adjust the position of the display left or right, so you can position it to the desired angle.
4.Supports VESA mount
Toshiba 50LF621U21 50"
The VESA mount is a standard used by most manufacturers. A device that supports the VESA mount can be mounted on many different supports, from arms to wall mounts.
5.supports Ethernet
Toshiba 50LF621U21 50"
Ethernet is a local area network technology.

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