The KD-43X75K is a 43 inch 4K TV from Sony, launched in the year 2022. It comes with a 10-bit IPS panel. The maximum resolution it can display is 3840 x 2160 @ 60 Hz with a pixel density of 103 ppi.
After screen size and resolution, the next most important specification to look for in a display is its Color Reproduction, which is defined by its color gamut specification.
Sony has not provided a color gamut specification for this TV. But don't worry, we have other means to guess that. As this TV comes with a 10bit IPS panel, we can safely assume its equivalent sRGB coverage to be 100% or above. The color accuracy on this TV will be Lifelike!
What is Color gamut ?
Color gamut spec of a TV is a measure of the range of colors that the TV can show.
In layman terms, this specification determines the ability of a TV to produce accurate colors. A TV with low color gamut coverage will miss out on some colors (such as deep red), thus producing a "washed out" picture.
Different manufacturers use different units to specify color gamut. Such as — sRGB, NTSC, DCI P3 etc.
But you don't need to worry about that, here is a chart that will help you choosing a TV with good color accuracy.
Now, after color gamut, the static contrast specification of a TV has equally important role in picture quality.
Understanding the static contrast ratio
The static contrast ratio of a TV corresponds to its Black levels. A TV with low static contrast ratio (<1000:1) will not produce deep blacks. Moreover, such TVs may suffer from backlight bleeds such as this:The image is an example of another display, it is not this one
Clearly this will impact your experience, especially in a dark room.
Like resolution, the static contrast ratio is also equally responsible for details. To put it into perspective, a TV with low contrast ratio will show both dark gray and black as black, thus lesser detail overall.
If given a choice, always prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
This TV features a static contrast ratio of 8000:1., well enough to achieve deep blacks. For the record, it also comes with local dimming backlight which is a plus.
HDR is also supported on this TV in form of HDR10 and HLG (Hybrid Log Gamma).
Coming to brightness, it is can produce a peak luminance of 250 nits. The backlight used on the panel is Direct LED.
If you are not into gaming, you can safely ignore these specs. But if you are also going to use the TV for gaming or use it as a PC monitor, make sure to take a TV with the lowest input lag and response time.
Sadly, there is no specification for input lag on this TV. Now, since this is not a cheap TV, we can expect an input lag of less than 20ms.
What is Input lag ?
This lag is the amount of time at which key-presses/mouse movements changes the content of the TV. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
Although for better experience, get a TV that comes with an input lag and response time of less than 20ms.
Ergonomics and Dimensions
Now, speaking of ergonomics — a VESA mount with interface size of 200 x 200 mm is provided for wall-mounting. Swivel, Tilt or Pivot features are not supported on this unit.
The vertical and horizontal measurements of this TV are 38.23 inches and 24.37 inches respectively. It is 3 inches thick. In total the TV weighs around 8.0 kilograms (including stand). Without stand, it weighs 7.8 kgs.
Hardware and Audio
The core of this TV is powered by a Quad Core CPU. There is no data on the available RAM on the TV's official specsheet.
For display connectivity, Sony has provided three HDMI 2.0 ports and one AV Composite In 3.5 mm jack port on this TV.
For connecting USB devices, you will have two USB ports. Other connectivity ports include — 1x Cable/Antenna In (F-type female) and 1x Ethernet RJ45.
Regarding wireless connectivity on this TV, the manufacturer has provided a 5Ghz Wi-Fi, 2.5 Ghz Wi-Fi, Wifi-Direct, Bluetooth and DLNA.
Coming to audio, it is packaged with 2 x 10W speakers.
Speaking of power usage, on average, this TV uses about 49.73 watts. On standby, it takes 0.5 watts.
Both 110V and 220V outlets are supported on this unit.