Here's why HDR, not 4K, is the most important upgrade for your next TV

• "4K" is the latest buzzword with TVs.
• Most advertising would have you think that 4K is akin to the leap we made from standard to high-definition TVs.
• Since HD made everything clearer, more pixels should only make your content look better, right?
• The problem: That isn’t totally true.
• Instead, when you're buying your next TV, there's another feature you should be more focused on: HDR.

SEE ALSO: Everything you need to know about HDR TV

First, it's important to understand what 4K really means.

Standard definition (SD), high definition (HD), and 4K (or Ultra HD) refer to a characteristic called resolution, or the number of pixels (or tiny display bits) that make up a display.

A common HDTV has a resolution of 1080p. In simple terms, it's 1,920 x 1,080 pixels: 1,920 pixels going across the display horizontally, and 1,080 pixels going across it vertically.