The KD-43X80K NA is a 43 inch 4K TV from Sony, launched in the year 2022. It features a 10-bit IPS panel. It can display a maximum resolution of 3840 x 2160 @ 60 Hz with a pixel density of 103 ppi.
Picture Quality
After screen size and resolution, the very next specification of a display that will impact your viewing experience is Color Gamut.
Sony has not provided a color gamut rating for this TV. But don't worry, we have other means to guess that. Considering the TV comes with a 10bit IPS panel, we can safely assume its equivalent sRGB coverage to be 100% or above. Undoubtedly The color quality on this TV should be Lifelike!
What is Color gamut ?
Color gamut specification of a TV is a measure of the range of colors that the TV can show.
A TV with poor color accuracy will produce undersaturated/washed out colors that will not be pretty to look at.
Different manufacturers use different units to specify color gamut. Such as — sRGB (most popular), NTSC 1953, DCI P3 to name a few.
But don't worry, below is a chart that will help you choosing a TV with good color accuracy.
After color gamut, the static contrast of a TV also impacts its picture quality.
Understanding the static contrast specification
A TV with high enough static contrast ratio will produce deep blacks while a TV with low contrast ratio (<1000:1) will produce images that will look muddy as shown below.

As you can see, this will impact your experience considerably.
Note that, static contrast ratio and resolution go hand in hand when it comes to details. To put it into perspective, a TV with low contrast ratio will produce less shades of colors, thus lesser detail overall.
This TV features a static contrast ratio of 8000:1., enough to display deep blacks. The panel comes with local dimming backlight technology which is a plus.
Dolby Vision, HDR10 and HLG (Hybrid Log Gamma) are also supported on this TV.
Coming to brightness, it can go as bright as 250 nits. The backlight used on the panel is Direct LED.
Gaming Performance
If you aren't into gaming, you can ignore these specs. But if you are also going to use the TV for playing games or use it as a PC monitor, you would want to take a TV that features the lowest input lag and response time.
Sadly, we cannot find the input lag specification for this unit. Now, as this is not a cheap TV from Sony, input lag on this TV could be 20ms or below.
What is Input lag ?
This lag is the amount of time at which key-presses/mouse movements changes the content of your TV. For casual Non-FPS games, input lag doesn't matter much.
But ideally, look for a TV that features an input lag and response time of < 20ms.
Ergonomics and Dimensions
Speaking of ergonomics — a VESA mount with interface size of 200 x 200 mm is provided for wall-mounting. However, there is no Swivel, Tilt or Pivot feature support on this TV.
The width of this TV is 37.95 inches while its height is 24.76 inches. It is 2.72 inches thick. It weighs around 10.1 kilograms and 0.6 kgs extra including stand. So plan your space accordingly.
Hardware and Audio
The TV is powered by 4-Core 1.8 Ghz (ARM Cortex-A73) CPU along with a (ARM Mali-G52) GPU. The installed RAM on the Sony KD-43X80K NA is 4 GB.
For display connectivity, Sony has provided four HDMI 2.0 (CEC) ports and one AV Composite In 3.5 mm jack port on this TV.
To connect USB devices, it includes two USB ports. Other connectivity ports include — 1x Cable/Antenna In (female), 1x RS232 (C) and 1x Ethernet RJ45.
Wireless connectivity options on this TV include Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct, Bluetooth and DLNA.
Now, speaking of speakers, it is packaged with 2 x 10W built-in speakers.
As for power usage, the TV consumes 49.73W on average and 0.5W on standby.
For powering this unit, you'll require either a 110V or 220V outlet @ 50Hz-60Hz.