The Full HD format appeared in 2007. It has a ratio of 1920×1080 and can be called 1080p.
As for 4K, this video format was officially approved in 2012. Terms such as Ultra High-Definition, UHD, Ultra HD have been used for this format since 2014. In this case the aspect ratio is 3840×2160.
You will also need an Internet speed of at least 30 Mbit/s to view content normally in 4K. At the same time, Full HD support at 8 Mbit/s is already available.
When buying a budget 4K TV, you need to be prepared for some problems.
Brightness level is too low. The minimum brightness for cheap 4K TVs is 200-220 cd/m2. m.Therefore, glare occurs when direct sunlight hits the screen or the corners of the matrix become dark. It is not always possible to adjust this using the settings.
Low screen refresh rate. Most budget 4K TVs have a refresh rate of 60 Hz. This will be enough just to watch videos or TV programs.
“Cutting” features. Due to these, you can expect: software freezes and reboots of the operating system, inability to install Smart applications from official stores, lack of ports for connecting equipment, incompatibility of the TV with advanced game consoles, inability to always display content in high quality Wi-Fi.module.
Source: Ferra
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