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A PAIR of Roku streaming devices that upgrade your TV have been discounted at Amazon.

The two Roku gadgets plug into the back of your TV, giving it access to a host of premium apps, features, and free content.

The Roku Express 4K+ is a cheap way to upgrade your TV
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The Roku Express 4K+ is a cheap way to upgrade your TVCredit: Amazon

Amazon's first deal is on the Roku Express 4K+, which normally has a listing price of $39.99.

Now the gadget (which rivals the Amazon Fire Stick) is on sale for just $29.99 – a 25% discount that saves you $10.

As the name suggests, this device supports 4K video.

  • Roku Express 4K+ at Amazon for $29.99 – buy here

Read more on Roku

So if you've got a 4K TV and some Ultra HD content, it'll be viewable in its native pixel-dense resolution.

You'll get access to loads of popular apps like Netflix, Disney+, and Hulu.

And there's a broad selection of free content too, including from The Roku Channel.

That's a built-in ad-supported streaming service with thousands of movies, TV shows, and live channels.

Roku also bundles this gadget with a Roku Voice Remote for issuing spoken commands to your TV.

Roku hands out surprise gift to millions and promises you’ll ‘love’ it – claim it for free before your next movie night

The gadget is popular among Amazon shoppers who have reviewed it positively enough to leave it with a 4.7/5 score.

That's based on nearly 80,000 reviews, of which 82% featured five-star ratings.

One shopper called it their "favorite streaming device", adding: "Rokus are arguably the most affordable and easy to use streaming devices on the market.

"If you don’t have a Roku TV or any kind of smart TV, or want to use this with a projector or something else, this is a no brainer investment."

What is 4K, Ultra HD and UHD?

Here's an easy guide to what 4K means...

  • 4K, Ultra HD and UHD are all different names for the same type of TV screen. 4K refers to the number of pixels on your TV screen – or the “image resolution”
  • The pixels are the tiny dots of colour that make up the image you see on your telly. A pixellated image is one where the pixels are really obvious, because there aren’t many. But images with lots of pixels – like a 4K movie – generally look sharper and clearer
  • A true 4K screen has 4096 x 2160 pixels. That means on your TV screen there are 3840 pixels across, and 2160 pixels vertically. That’s roughly 8.3 million pixels on the display in total
  • 4K gets it’s name because it’s got four times the number of pixels as a standard Full HD TV
  • Full HD (or 1080p) screens have 1920 pixels across, and 1080 pixels going upwards – for around two million pixels in total. So 4K just means your TV has many more pixels on the screen compared to a more common Full HD display
  • Ultra HD, or UHD, is basically the same as 4K. If you buy a UHD telly in a shop, you’ll be able to watch 4K content on it with no bother
  • But there is a small difference. Almost every TV you ever buy has an aspect ratio of 16:9. That means for every 16 pixels horizontally, there are 9 vertically
  • True 4K footage doesn’t quite fit in with that ratio, so you won’t often find TVs with 4096 x 2160 pixels. Instead, to fit with the 16:9 ratio, most 4K TVs will have 3840 x 2160 pixels instead
  • If it doesn’t make sense, grab a calculator and divide 2160 by 9. Then multiply it by 16, and you’ll get 3840. That’s the aspect ratio working its magic. So when you see an Ultra HD TV, it just means it’s a 4K image with slightly fewer vertical pixels
  • If you try watching a 4K video on a non-4K TV, the video will still play – but it won’t be in 4K quality. To watch a 4K video in 4K quality, you’ll need to fork out for a 4K TV. Similarly, if you’re watching standard or HD footage on a 4K TV, it won’t magically become 4K quality
  • Some TVs promise “4K upscaling”, which converts your standard or HD footage to near-4K quality. This works by using software to guess what colours would fill the extra empty pixels missing in HD footage, and then filling them in. This creates a 4K-like effect, but it’s not true 4K
  • Roku Express 4K+ at Amazon for $29.99 – buy here

EXPRESS YOURSELF!

There's a cheaper option on Amazon called the Roku Express HD.

Unlike the more expensive model, this only supports HD content – and won't reach detailed 4K resolutions.

But it's more budget-friendly, down from $29.99 to $27.99.

  • Roku Express HD at Amazon for $27.99 – buy here
This HD model is even cheaper than its 4K sibling
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This HD model is even cheaper than its 4K siblingCredit: Amazon

We'd recommend buying the 4K model over this, given the difference is only $2.

This device only features that regular non-voice remote too.

But if you do want to bag the small saving then this is also a popular device.

It has a 4.7/5 score based on over 37,000 reviews.

TECH DEALS – TOP PICKS TO BUY TODAY

Here are some tempting deals worth checking out...

HP keyboard – $8.99

Roku - $29.99

iPad - $379

Samsung Galaxy Tab - $289.99

Sony TV 65in - $2,298

Fire TV 32in - $109.99

Insignia TV 50in - $189.99

Insignia TV 32in - $79.99

Insignia TV 42in - $129.99

Fire TV 55in - $349.99

Sony TV 43in - $348

Toshiba TV 75in - $449.99

Philips TV 32in - $118

Samsung TV 65in - $1,597.99

All recommendations within this box are informed by expert editorial opinion. If you click on a link in this story we may earn affiliate revenue.

One happy shopper with a Verified Purchase badge gave it five stars and wrote: "The Roku Express is a compact yet powerful streaming device that brings a world of entertainment to your TV.

"Setup is incredibly simple, just plug it into your TV's HDMI port and connect to the internet. The device supports HD streaming, delivering clear and vibrant picture quality.

They added: "Overall, the Roku Express is an excellent choice for anyone looking to upgrade their TV with a hassle-free streaming experience."

  • Roku Express HD at Amazon for $27.99 – buy here

Read More on The US Sun

All prices in this article were correct at the time of writing, but may have since changed.

Always do your own research before making any purchase.

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