When comparing Vizio D40u-D1 vs Sony X720E (KD43X720E), the Slant community recommends Sony X720E (KD43X720E) for most people. In the question“What are the best 4K TVs to use as a computer monitor?” Sony X720E (KD43X720E) is ranked 1st while Vizio D40u-D1 is ranked 10th. The most important reason people chose Sony X720E (KD43X720E) is:
The Sony X720E makes an excellent computer monitor because of the TV’s short input lag, full 4:4:4 color support, and well-handled motion blur. The TV has enough processing power to keep its input lag and response time to a bare minimum. Its input lag is 19.7 ms, which ensures that it takes less than 1/50th of a second for the X720E to process an input signal generated by, let's say, a click of a button and display a corresponding image change. Furthermore, the X720E is a very responsive TV. It takes only 7.5 ms for its pixels to switch 80% to the next color; As a result, fast-moving objects don’t leave long trails on a screen which almost cancels out all the motion blur effects. The full 4:4:4 color support allows the X720E to process native computer-generated video input. As a result, the TV can display sharp and crisp image, without any detail loss. This is especially noticeable while viewing vector graphics such as text.
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Pro Very dark blacks
A pure black screen measures just 0.023 cd/m², which means that when black colours or loading screens appear, they will actually look black (instead of the dark purplish glow which lower quality screens produce when displaying black colours).
Pro Great colors
The colors on this TV deliver great accuracy and very little banding, easily outperforming any other TV in its price range.
Pro Size options
The TV comes in various sizes, starting from 40” up to 65”, making it easy to choose the best size for you.
Pro Decent response time for gaming
This TV has a response time of 12.3ms, which is pretty good but not optimal for gaming. 16ms is considered the total response time (from mouse to monitor) before humans can detect the delay, so as long as you use a very fast mouse you shouldn't notice any delay whatsoever.
Pro 5 HDMI ports
With 5 HDMI ports, which offer extremely low latency in Game mode, you can have everything plugged into this TV.
Pro Makes an excellent computer monitor
The Sony X720E makes an excellent computer monitor because of the TV’s short input lag, full 4:4:4 color support, and well-handled motion blur.
The TV has enough processing power to keep its input lag and response time to a bare minimum. Its input lag is 19.7 ms, which ensures that it takes less than 1/50th of a second for the X720E to process an input signal generated by, let's say, a click of a button and display a corresponding image change. Furthermore, the X720E is a very responsive TV. It takes only 7.5 ms for its pixels to switch 80% to the next color; As a result, fast-moving objects don’t leave long trails on a screen which almost cancels out all the motion blur effects.
The full 4:4:4 color support allows the X720E to process native computer-generated video input. As a result, the TV can display sharp and crisp image, without any detail loss. This is especially noticeable while viewing vector graphics such as text.
Pro Great for bright rooms
The combination of reasonably high peak brightness and semi-gloss screen finish allows this TV to deal with reflections and glare efficiently. Its 340 nits of brightness are almost double than what its direct competitor, the TCL S405, offers. Furthermore, the X720E diffuses up to 97.6% of ambient light; thus the TV does not suffer from reflections.
Pro Excellent for console gaming
The Sony X720E is a great companion to latest gen consoles, like the Xbox One X, PS4 Pro, and Wii U because of its 4K60 support, low input lag, and motion blur candling capabilities.
Furthermore, the TV’s full HDR support allows you to fully experience HDR-enhanced games such as World of Tanks, FIFA 18, etc.
Pro Excellent for upscaling content
This TV does a fantastic job when it comes to upscaling low-resolution content. In a nutshell, it can upscale 480p, 720p, and 1080p content to 4K resolution while preserving details and sharp edges. Great for those with a collection of old DVDs or Blu-ray disks.
Pro Ads-free main interface
The main interface of the smart OS does not feature advertisements or sponsored content.
Pro Well-rounded inputs
Regarding connectivity, this TV is has everything you'd currently want. It has three HDCP 2.2 compliant HDMI 2.0 ports, digital and analog audio output ports, and an Ethernet port. Additionally, as the TV has a composite input interface, you can enjoy playing your retro consoles, such as the Nintendo and Sega without having to go through the hassle of signal conversion. HDMI, USB, and analog coaxial ports are situated on the side of the TV so you won’t have any problem accessing them even if it’s mounted on a wall.
Pro No problems with image retention
Unlike the majority of OLED panels, this LED TV does not suffer from image retention problems. You can leave the TV on for long periods without having to worry about pixel damage.
Pro Suitable for viewing up-front
The reasonably small panel size of 43-inch means you can still be comfortable looking at the screen up close. You can conveniently use this TV as a computer monitor and sit as close as 2.2 feet away from it.
Pro The stand does not take up too much space
The 43-inch model of Sony X720E does not take up too much space on a work desk as the TV comes with a compact, 9.4-inch by 21.9-inch stand. In comparison, the TCL S405 takes up almost 30% more table space.
Pro Excellent viewing angles
The X720E has excellent viewing angles because of its IPS panel, which gives you greater freedom than VA panels when it comes to finding a good viewing spot. In fact, you will only notice a minor color shift if your viewing angle is greater than 41 degrees.
Con Mediocre viewing angles
This TV has been testing to have a viewing angle of about 15°. While great for a TV, this is sub-par for a computer monitor. Because you'll be sitting closer to it, the angle from center to the edge of the screen will likely be past the 15° mark, which could leave colours washed out by the edges of the panel.
Con Not the best choice for text or photo editing
The TV does not support chroma 4:4:4 sub-sampling. Therefore, small fonts and small details on photos lose color data and detail.
Con No Chromecast
Unlike Vizio's more recent TV ranges, which use Chromecast, this TV still uses a standard smart TV system, providing only basic functionality and apps.
Con Low brightness
The TV is not the best option if you plan to use it in bright conditions as the brightness level is one of the lowest in the market, reaching only 260 nits. If it was not for the excellent contrast ratio, the picture would look bland.
Con 120Hz only runs in 1080p
Because of the lack of a Display Port, 120Hz can only be achieved at 1080p. 120Hz is preferable when it comes to gaming, so for the best performance you will need to game at 1080p. 4K only supports 60Hz, which isn't ideal for gaming but will work fine for productivity purposes.
Con No display port
Display port is a port used to deliver high amounts of data, and more favourable than HDMI for very high resolution high fps gaming.
Con Can’t unleash full potential of HDR content
Even though this TV does support HDR10 media, the low HDR peak brightness, poor native contrast, lack of local dimming, and lack of wide color gamut severely limit the quality of HDR playback. Even some lower tier TVs will produce higher quality HDR images.
Con Not compatible with Dolby Vision
When it comes to HDR content, the X720E cannot display Dolby Vision-compliant content as it is only limited to HDR10 content. Even though HDR10 has more available content, multiple services require Dolby Vision for HDR playback.
Con Built-in speakers don’t sound right
The X720E comes with an integrated 20W 2.0 stereo speaker system. While it can get pretty loud (around 100 dB), the quality of sound is very weak, especially when it comes to bass. The speakers sound unclear and muddy.
Con Dark scenes look shallow
Because of the really low native contrast ratio of 907:1, dark scenes look washed out if the TV is placed in a dark environment.
Con Not suitable for competitive gaming
While the TV's input lag of 19.7 ms is noticeably smaller than the overwhelming majority of TVs on the market, it still can not compete with rapid TN gaming monitors when it comes to fast and competitive gaming. The input lag of such panels can go all the way down to 3 ms.
Con Requires an external power brick
Both the 43-inch and 49-inch models of the Sony X720E have large and bulky external power bricks. Bulky PSUs can be a hassle to deal with especially if you’re mounting your TV on a wall.
Con Non-intuitive smart OS
Unlike other Sony TVs, the X720E has a custom, Linux based operating system which runs the Opera TV application store. OS is unintuitive and confusing to use.