The 65GUB7140 is a 65 inch 4K TV from Grundig. It was launched in 2021. It comes with a 10-bit IPS panel.
The max. resolution it can achieve is 3840 x 2160 @ 60 Hz with a pixel density of 68 ppi.
After screen size and resolution, the next most important specification of a display is its Color Reproduction (defined by its color gamut specification).
Grundig did not provide a color gamut specification for this TV. So we have to take a guess.
Considering the TV features a 65 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 quality on this TV will be Lifelike! It will produce color accurate images by default.
What is Color gamut ?
Color gamut spec of a display is the measurement of the range of colors that the display can display.
What this means is, it determines the ability of a display to produce accurate colors. A TV with low gamut coverage will miss out on some colors (such as deep red), the result would be a "washed out" picture quality.
It is specified in different units - sRGB,sRGB (standard RGB), NTSC 1953, DCI P3 etc.
But don't worry, below is a chart that you can use to choose a TV with good color accuracy.
After color gamut, you should look at the static contrast specification as it impacts the picture quality substantially.
The importance of static contrast ratio
The static contrast ratio of a TV corresponds to its Black levels. A Display with low static contrast ratio (less than 1000:1) will not produce deep blacks. Apart from this, such displays may suffer from backlight bleeds such as this:The image is an example of another display, it is not this one
Obviously this will impact your experience considerably, 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 produce less shades of colors, thus 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 comes with a static contrast ratio of 8000:1., good enough to produce deep blacks and eye-catching visuals. The panel comes with local dimming backlight which is a plus.
HDR 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 Edge LED.
If you aren't into gaming, you can safely ignore these specifications. But if you are also planning to use the TV for playing games or use it as a PC monitor, you would want 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 from Grundig, we can expect an input lag of less than 20ms.
Understanding Input lag and response time
This lag is the amount of time at which your inputs changes the content of your TV. For casual Non-FPS games, input lag doesn't matter much.
For best of both worlds, look for a TV that has an input lag and response time of less than 20ms.
Dimensions and Ergonomics
The TV measures 65 inches vertically and 57.4 inches horizontally. It is 3.35 inches thick.
It weighs approximately 16.8 KGs, another 2.5 kgs including stand. So plan your space accordingly.
Speaking of ergonomics — a VESA mount with interface size of 400 x 400 mm is provided for wall-mounting. Swivel, Tilt or Pivot features are not supported on this unit.
Hardware and Audio
The Grundig 65GUB7140 comes with a 4-Core CPU. However, we could'nt find any information on the RAM on the TV's specsheet.
Speaking of OS, the Grundig 65GUB7140 runs Amazon Fire TV Operating System.
For display connectivity, Grundig has provided three HDMI 2.0 (ARC) ports on this TV.
To connect USB devices, you will have two USB 2.0 ports. Other connectivity ports include — 1x Satellite In (F-type), 1x CI+ 1.3, 1x Antenna (RF) and 1x Ethernet RJ45.
Wireless connectivity options on this TV include Wi-Fi (2.5Ghz only) and Bluetooth.
Now, for audio, it is packaged with 2 x 20W built-in speakers.
Speaking of power usage, it consumes 160W on average and 0.69W on standby.
Both 110V and 220V outlets are supported on this unit.