The 50U6G is a 50 inch 4K TV from Hisense, launched in the year 2021. It features a True 10-bit VA panel.
The maximum resolution it can achieve is 3840 x 2160 with a refresh rate of 60 Hz and a pixel density of 89 ppi.
Picture Quality
After screen size and resolution, the next most important specification of a display is its Color Reproduction Accuracy (defined by its color gamut specification).
This TV doesn't come with a color gamut specification, so we have to take a guess.
Considering the TV features a big 50 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! It will produce accurate colors out of the box.
Understanding the Color Gamut Specification
Color gamut specification of a TV is the measurement of the range of colors that the display can show.
A TV with poor color accuracy will produce undersaturated colors that will not be pretty to look at.
It is specified in different units - sRGB,sRGB (standard RGB), NTSC, DCI P3 to name a few.
But you don't need to worry about that, below is a chart that you can use to choose a TV with good color accuracy.
After color gamut, the static contrast of a TV similarly impacts its picture quality.
The importance of static contrast ratio
There are two types of contrast specifications for a TV. Static and Dynamic. We are interested in static contrast ratio. Dynamic doesn't matter much.
This tells the intensity of black levels. That is, a TV with static contrast ratio < 1000:1 may produce black images something like this:

Moreover, such TVs are also prone backlight bleeds that will rob your experience — as shown below.

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.
If given a choice, always prefer a FHD TV with high contrast ratio over a 4K TV with low contrast ratio.
This TV comes with a static contrast ratio of 8000:1., well enough to achieve deep blacks. The panel comes with local dimming backlight which is a plus.
HDR is also supported on this TV in form of Dolby Vision, HDR10, HDR10+ and HLG (Hybrid Log Gamma).
Coming to brightness, it is can produce a maximum brightness of 600 nits, powered by Direct LED (Full-Array Local Dimming) backlight. This amount of brightness is good enough even for a room with sun's rays in!
Gaming Performance
If you are going to use the TV other than using it as a TV — say as a PC monitor or for gaming purposes, make sure to get a TV that features the lowest input lag. For gaming however, both input lag and response time affects the performance.
Unfortunately, we cannot find the input lag specification for this unit. But since this is not a cheap TV, input lag on this TV could be 20ms or below.
What is Input Lag and Why it matters ?
This lag is the amount of time at which key-presses or mouse movements changes the content of your TV. Though, this won't matter much if you aren't into competitive/FPS games like call of duty.
Although for better experience, look for a TV that has an input lag and response time of < 20ms.
Ergonomics and Dimensions
Now, coming to ergonomics — a VESA mount with interface size of 300 x 300 mm is provided for wall-mounting. Swivel, Tilt or Pivot features are not supported on this unit.
Vertically, the TV measures 50 inches and horizontally 43.78 inches.
Coming to thickness, it is 3.11 inches thick. It weighs around 12.6 kgs and 0.2 kgs extra if you include stand. So plan your space accordingly.
Hardware and Audio
The UI on this TV is powered by Android 10 Operating System.
For display connectivity, Hisense has provided four HDMI 2.0 (b; ARC; CEC) ports and one AV Composite In (Video + L/R) port on this TV.
To connect USB devices, it includes two USB 2.0 ports. Other connectivity ports include — 1x Cable/Antenna In (F-type) and 1x Ethernet RJ45.
Wireless connectivity options on the Hisense 50U6G include Wi-Fi (5Ghz + 2.5Ghz), Wifi-Direct and Bluetooth.
The Audio unit of this TV is powered by 2 x 10W built-in speakers.
Speaking of power consumption, on average, it consumes about 96W. On standby, it takes 0.5 W.
It supports a power outlet of 100 V - 120 V/50 Hz - 60 Hz.