screen comparing UHD and HDR


in 4k TVs

screen comparing UHD and HDR


in 4k TVs

learn more
Key Takeaways

UHD refers to resolution, with four times the pixel count of Full HD.

HDR enhances color and contrast, making images appear more lifelike.

4K UHD and HDR can coexist in TVs for a superior viewing experience.

The choice between UHD and HDR depends on personal preference and content type.

Always understand the specifications before buying a new TV to ensure you get the best fit for your needs.

A Deep Dive: UHD vs HDR in 4K TVs – What's the Difference?

As technology advances, so does the jargon, especially when you're in the market for a new TV. You've probably encountered terms like UHD and HDR, especially with 4K TVs. This article delves into these buzzwords, shedding light on the difference between UHD vs HDR, and helping you make an informed decision for your next TV purchase. If you want the best televisions viewing experience, understanding these terms is essential.

Table of content

What is UHD?

UHD stands for Ultra High Definition. It refers to the resolution of the display. A UHD TV has a resolution four times greater than that of Full HD (1080p). This means a higher pixel count, leading to a clearer and more detailed viewing experience. In simple terms, UHD TVs have more pixels per square inch than HD TVs, making images look sharper.

UHD definition ration on HD TV

Is 4K the Same as UHD?

Often, the terms 4K and UHD are used interchangeably. While they are closely related, there is a slight difference. 4K refers to a resolution of 4096 x 2160 pixels, which is mostly used in the cinema. On the other hand, UHD TVs have a resolution of 3840 x 2160 pixels, which is often referred to as 4K for simplicity.

What Stands for High Dynamic Range (HDR)?

HDR stands for High Dynamic Range. Unlike UHD which focuses on resolution, HDR deals with the display's contrast ratio and color accuracy. HDR improves the whites and darks on your screen, making images more lifelike. When you watch HDR content on an HDR-compatible TV, you'll notice richer colors and more details in the bright and dark areas of the screen.

HDR HD television visualisation

UHD vs HDR: What's the Difference?

The main difference between UHD and HDR lies in what they improve. UHD boosts resolution while HDR enhances color and contrast. UHD is all about pixel count, while HDR makes each of those pixels display a wider range of colors and brightness levels. Thus, UHD gives you more pixels, and HDR makes those pixels look better.

Definition Stands for Ultra High Definition. Focuses on resolution. Stands for High Dynamic Range. Focuses on enhancing contrast ratio and color accuracy.
Pixel Dimensions Often referred to as 4K for TVs with a resolution of 3840 x 2160 pixels. Does not define pixel dimensions; it enhances the quality of each pixel.
Main Focus Enhances pixel count for sharper images. Has four times the pixel count of Full HD. Enhances color and contrast of each pixel. Allows for richer colors and more details in bright and dark areas.
Visual Impact Offers a clearer and more detailed viewing experience due to higher pixel count. Provides significant visual improvement in color and contrast, making scenes more lifelike.
Content Suitability Ideal for content where clarity and sharpness are priorities, e.g., gaming. Perfect for movies or content where color accuracy and dynamic contrasts are essential.
Compatibility with the Other A UHD TV can have HDR, but it's not a given. HDR can be featured in both HD and UHD TVs, but the impact is more pronounced in UHD due to higher resolution.

How Do Pixel Count and Resolution Play Into This?

Pixel count directly relates to the resolution. A UHD TV has four times the number of pixels as a 1080p Full HD TV. This increase in pixel count makes the image sharper, offering a more detailed viewing experience. On the other hand, HDR doesn't change the number of pixels but improves the quality of each pixel.

UHD versus HDR television visualisation

Why HDR in TVs Matters?

The visual impact of HDR is impressive. It significantly improves the contrast, allowing for deeper blacks and brighter whites. Scenes in movies and shows feel more realistic, and games appear more immersive. In essence, HDR televisions redefine the boundaries of color and brightness, giving viewers an unparalleled experience.

Which is Better: 4K UHD or HDR?

It's not about one being better than the other. 4K UHD enhances resolution, and HDR elevates color and contrast. While a 4K UHD TV can offer a brilliant viewing experience, the addition of HDR takes it to a whole new level. However, the choice depends on personal preferences and the content you're watching.

Can TVs Have Both 4K UHD and HDR?

Yes, many modern TVs come equipped with both 4K UHD and HDR. These TVs offer the best of both worlds, combining sharp resolution with dynamic color and contrast. The synergy of 4K UHD and HDR provides an unparalleled viewing experience.

UHD vs 4K UHD vs HDR: Why the Confusion?

The overlapping use of these terms is mainly due to marketing tactics. Brands often use terms that sound appealing, even if they are not entirely accurate. It's essential to educate yourself and understand the differences to make an informed purchase.

Making the Right Choice: UHD or HDR TVs?

When choosing a new TV, consider what you prioritize more: resolution or color accuracy. If you mostly watch movies, an HDR TV can bring scenes to life. However, if you're into gaming or enjoy crisp visuals, a 4K UHD TV might be more suitable. For the best experience, look for a TV that offers both.


  • Ted Tayler Mobo Telecom
  • about the author

    Ted Taylor, better known as Mr. Mobo, is a telecom analyst and columnist. Mr. Mobo advises consumers on everything related to telecommunications.

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