The 75A6G is a 75 inch 4K TV from Hisense. It was launched in 2021. It comes with a 10-bit IPS panel.
It can achieve a maximum resolution of 3840 x 2160 with a refresh rate of 60 Hz and pixel density of 59 ppi.
Picture Quality
After screen size and resolution, the next important feature of a display is its Color Reproduction, which is defined by its color gamut specification.
This TV doesn't come with a color gamut specification, so we have to take a guess.
Now, since the TV features amassive 75 inch screen, it won't come with a cheap panel, so here we can assume its equivalent sRGB coverage to be 90-100% or above. Undoubtedly The color accuracy on this TV should be Lifelike! Meaning it is capable of producing color accurate images.
Understanding Color Gamut
Color gamut specification of a TV is a measure of the range of colors that the display can display.
Meaning, this specification indicates the ability of a display to produce accurate colors. A display with low gamut coverage will miss out on some colors (such as deep red), thus producing a "washed out" picture.
Different manufacturers use different measurement standards to define color gamut. Viz — sRGB (most popular), NTSC, DCI P3 Adobe RGB and rec.2020.
But you don't need to worry about that, here is a chart that will help you choosing a TV with good color accuracy.
Next in the list is Static Contrast.
The importance of static contrast ratio
A TV with low static contrast ratio will not produce deep enough blacks and may bleed backlight as shown in the below image:

The static contrast ratio of above TV is rated 800:1. So make sure you get a TV with a static contrast of >= 1000:1. Ofcourse, More the better.
Other than black levels, a TV with high constrast ratio lets you to see more details. So, resolution and static contrast ratio go hand in hand.
There is no mention of this spec in this TV's official datasheet. So once again we have to make an assumption based on the TV's other specs. In general, IPS panels come with a static contrast ratio between 700:1 - 1500:1. For a 4K TV, we can imagine the ratio of Hisense 75A6G would be no less than 1200:1.
HDR is also supported on this TV in form of Dolby Vision, HDR10 and HLG (Hybrid Log Gamma).
Coming to brightness, the peak brightness the TV can achieve is 250 nits. The backlight of this TV is powered by Direct LED technology.
Gaming Performance
If you aren't interested in 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, you would want to take a TV that features the lowest input lag and response time.
Unfortunately, we cannot find the input lag specification for this unit. Now, as this is not a cheap TV from Hisense, we can expect an input lag of less than 20ms.
What is Input lag ?
This lag is the amount of time at which inputs changes the content of the screen. 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.
Dimensions and Ergonomics
The vertical and horizontal measurements of this TV are 66 inches and 40.98 inches respectively. It is 3.35 inches thick.
In total it weighs approximately 26.5 kilograms (including stand). Without stand, it weighs 26.0 Kgs. So plan your space accordingly.
Now, coming to ergonomics — a VESA mount with interface size of 400 x 300 mm is provided for wall-mounting. Swivel, Tilt or Pivot features are not supported on this unit.
Hardware and Audio
To power its UI, the TV runs Android 10 Operating System.
For display connectivity, there are four HDMI 2.0 (b; ARC; CEC) ports and one AV Composite In 3.5 mm jack port on this TV.
For connecting USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x Cable/Antenna In (F-type) and 1x Ethernet RJ45.
Regarding wireless connections, you will have — Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct and Bluetooth.
Speaking of speakers, it is packaged with 2 x 12W built-in speakers.
Speaking of power consumption, on average, it uses about 384W. On standby, it uses 0.5 W.
For powering this unit, you'll require an 100 V - 120 V/50 Hz - 60 Hz outlet.