The QN75Q70B is a 75 inch 4K TV from Samsung. It was launched in 2022. It features a 10-bit VA panel with Anti-glare/Matte finish. It can achieve a maximum resolution of 3840 x 2160 @ 120 Hz with a pixel density of 59 ppi.
After screen size and resolution, the very next feature of a display that will impact your viewing experience is its Color Gamut.
Speaking of which, this TV is rated with a DCI P3 color profile coverage of 100% — equivalent to 136.36% sRGB. The color quality on this TV should be Lifelike!
What Color Gamut means ?
Color gamut spec of a display is a measure of the range of colors that the display can display.
A TV with poor color accuracy will produce undersaturated/washed out colors that will not be pretty to look at.
It is specified in different units - sRGB,sRGB (standard RGB), NTSC 1953, DCI P3 Adobe RGB, rec.2020. It is upto the manufacturer which one they choose.
In case of this TV, its color gamut is specified using DCI P3.
But don't worry, here is a chart that will help you choosing a TV with good color accuracy.
Next in the list of important specifications is Static Contrast.
Understanding the static contrast specification
There are 2 types of contrast specifications for a TV. Static and Dynamic. We are interested in static contrast ratio. Dynamic doesn't matter much.
This specification defines the intensity of black levels. That is, a TV with static contrast ratio < 1000:1 will produce black images something like this:
Apart from that, such TVs are also prone backlight bleeds that will affect your experience — as shown below.The image is an example of another display, it is not this one
Also, 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 show both dark gray and black as black, so lesser detail overall.
If given a choice, I will 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 display deep blacks. The panel comes with local dimming backlight which is a plus.
HDR10, HLG (Hybrid Log Gamma), HDR10+, HDR10+ Adaptive, HDR10+ Gaming and Quantum HDR are also supported on this TV.
Coming to brightness, it can go as bright as 250 nits. The backlight of this TV is powered by Edge LED technology.
Now if you are going to use the TV other than using it as a TV — like as a PC monitor or for gaming purposes, you should get a TV with lowest input lag. For gaming however, both input lag and response time impacts the performance.
Sadly, there is no specification for input lag on this TV. But as this is not a cheap TV, input lag on this TV could be 20ms or below.
Understanding Input lag and response time
This lag is the amount of time at which your inputs changes the content of your display. For casual Non-FPS games, input lag doesn't matter much.
Although for better experience, get a TV that features an input lag and response time of less than 20ms.
Ergonomics and Dimensions
Now, coming to ergonomics — If you plan to wall mount the TV, you can make use of the VESA mount provided with this TV, which by the way has an interface size of 400 x 400 mm. The unit doesn't come with either Swivel, Tilt or Pivot support.
The vertical and horizontal measurements of this TV are 66 inches and 40.43 inches respectively.
Speaking of thickness, it is just 1 inches thick. In total the TV weighs approximately 34.7 Kgs including its stand. Without stand, it weighs 33.4 kgs. So plan your space accordingly.
Hardware and Audio
The internals of this TV is powered by 4-Core CPU. There is no data on the available RAM on the TV's official specsheet.
The Operating System on this TV is Tizen 6.5.
For display connectivity, there is four HDMI 2.1 ports on this TV.
For connecting USB devices, you will have two USB 2.0 ports. Other connectivity ports include — 1x Cable/Antenna In (F-type female), 1x RS232 (C) and 1x Ethernet RJ45.
Regarding wireless connectivity on this TV, you will have — a 5Ghz Wi-Fi, 2.5 Ghz Wi-Fi, Wifi-Direct, Bluetooth and DLNA.
Now, speaking of speakers, it is packaged with 2 x 10W speakers.
Now, coming to power consumption, the TV consumes 157.2 watts on average and 0.5 watts on standby.
For powering this unit, you will need an 220 V - 240 V/50 Hz - 60 Hz outlet.