HD, FHD, Quad-HD, UHD: Understanding High Definition video resolutions

high definition

Any talk of video and screen resolution can easily spark up a confusion, which not even thorough debate can solve. From qHD, HD, FHD, WQHD, to UHD, one could simply classify them all as HD and walk away with it. But are they just High Definition, or is there anything to add to it?

We outline for you, in brief, a description of each of the technical terms involved in HD and create the difference between them.

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Quarter High Definition (qHD)
qHD is a display resolution of 960×540, which is just a quarter of the 1080 pixels found in the Full HD (1920×1080) – hence its naming.

High Definition (HD)

Also known as 720p HD, this was the standard when the HD naming scheme was created. It is a display resolution of 1280×720.

Full High Definition (FHD)

This is equivalent to 1920×1080 and is the basic standard for making screen resolution comparisons. It is also known as1080p.

Quad High Definition (WQHD)
To create a difference between qHD and QHD, Quad HD is referred to as WQHD. WQHD displays have a 16:9 aspect ratio which enables widescreen content for supported devices, and this is the reason for the ‘W’ in WQHD.

In terms of the number of pixels, WQHD is equivalent to 2560×1440. This is four times the number of pixels you get on a 720p HD panel, but it is not as good as 4K. Do not get confused by the ‘Quad HD’ name, it is in no way related to 4K Ultra High Definition.

4K Ultra High Definition (UHD)
4K refers to resolutions of 3840×2160. This is four times as many pixels as 1080p Full HD. Many, however, claim that the market standard 16:9 4K (3840×2160) is not true 4K, but technically just UHD. True 4K is 17:9 (4096×2160).

Read About: 4K HDR and what it means for your home entertainment experience

4K Ultra HD is considered to be the next generation of HD Television, and it is by no surprise that majority of new product on the market are coming with 4K resolution. Whereas not so much content is filmed in 4K, manufacturers are not moved and are progressing in the production process.

This resolution standard is also quickly becoming a common feature of premium phones.


8K refers to the horizontal resolution of 7,680 pixels, forming the total image dimensions of (7680×4320), otherwise known as 4320p. 8K UHD has two times the horizontal and vertical resolution of the 4K UHD with four times as many pixels overall, making it  sixteen times as many pixels as Full HD.

Image: Scifibeer