Our Verdict 
The gateway to on-demand 4K HDR movies you've been waiting for, now with extra apps and features
For 
Substantial library of 4K HDR content
Small, silent box
Nice UI
Useful voice control
Strong picture and sound
Almost every app you could ask for
Against 
Lack of some advanced audio formats
All 4 still missing
Universal search isn't quite universal
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For many, watching Apple CEO Tim Cook on stage talking about 4K and HDR as if they are brand-new Apple inventions is both hilarious and galling in equal measure.

After all, 4K technology was already around when the previous Apple TV launched in 2015, but Apple simply chose to ignore it.

But focusing on the past would be to ignore the bigger picture. Apple embracing 4K and HDR is great news because it shines a light on specs that we want to see become as popular as possible.

What’s more, the Apple TV 4K box itself brings with it a whole load of 4K HDR movies to streaming for the first time.

Build

The Apple TV 4K looks practically identical to the previous Apple TV, but flip the little black box over and you’ll notice a ring of small cutouts on the 4K model that weren’t present on its predecessor.

These allow cool air to get to the more powerful A10X chip. It gets warm to the touch while in action, but is extremely quiet – even when playing a game or streaming 4K content.

There’s just 32GB storage in the standard £180 model, and 64GB in the £200 version we have on test here.

That sounds paltry, particularly as it can’t be expanded by the addition of an external hard drive – but as the Apple TV 4K doesn’t download movies, TV shows or music, instead exclusively streaming them, the only storage it needs is for the apps themselves.

The apps tend to be pretty small – Netflix is just 41.6MB, for example – and though games files tend to be significantly bigger (Hitman GO is 1.21GB), we think the 32GB model should be sufficient for most people.

Features

Once switched on, you’re treated to a typically slick Apple experience, particularly if you have an iPhone or other iOS device, which can be used to share all of your account and wi-fi info.

The device detects if your TV supports 4K resolution and adjusts its output accordingly. It also tests for HDR support, sending an HDR signal to the TV. If you can receive it, everything the Apple TV 4K sends to your TV from this point will be in 4K.

Following a recent software update, the device no longer upconverts standard dynamic range to HDR and it will now match the native frame-rate of your content. Both are big improvements and well worth activating in the settings.

The menu system itself is neat, clean and intuitive, as you’d expect. One advantage the Apple TV 4K has over alternatives from the likes of Samsung and LG is a voice control that is genuinely useful at times.

Hold the mic button on the sliver of a remote and say “show me action movies” and you are taken directly to the relevant selection in iTunes’ library. Siri is fairly aware of context these days, too, so follow up with “only those in 4K” and the list of action movies will be whittled down to only those available in UHD.

Siri is a powerful search tool, but that contextual awareness can also be useful when you’re already watching something. Missed a mumbly bit of dialogue? “What did he/she say?” will repeat it with subtitles activated so you can get it the second time around. “Who’s that actor?” will tell you the name of the performers in the scene you’re watching. It’s really rather clever.

The search function has been expanded to cover more streaming services, including iPlayer, but Now TV content isn’t included in the results, which is a shame for subscribers.

If you’re more partial to controlling your TV the old fashioned way, you might want to use the remote control from the TV that’s connected to the Apple TV 4K, as the touchpad on the Apple remote is a bit skittish. Doing so means you’re not immediately ready to issue a voice command, though, and it’s testament to the usefulness of Siri on Apple TV that that’s a genuine shame.

Apple TVs in the UK now also get an app that's been available in the US for some time – rather confusingly called ‘TV’. This essentially consolidates all of the content available across all of the apps you’ve installed and have subscriptions to, and allows you to quickly dip back into the last thing you were watching or find something new to watch via a fairly intelligent algorithm that recommends content based on your favourites and recent activity.

It works pretty well and is surprisingly magnanimous, offering, for example, Arrival via Amazon Prime Video in the first instance, when it could direct you to the pay-as-you-go version on iTunes. The one big issue is that Netflix isn’t integrated into the TV app, and if that’s your primary streaming app, as it is for so many people, you’re going to find TV a bit lacking.

You may have noticed that we mentioned Amazon Prime Video – yes, it's finally on Apple TV, and it works beautifully. It’s even included in search results and the TV app.

The UK catch-up services hole has just about been plugged now, too, with BBC iPlayer having been joined by ITV Player and My5. All 4 is still missing, which is a shame, but a fairly small gap in an otherwise substantial suite of streaming services.

More after the break

But hands-down, the new Apple TV 4K’s biggest selling point is its library of 4K HDR movies. The catalogue is expanding at an impressive rate and currently includes well over 100 films, including recent blockbusters such as IT, Dunkirk and Spider-Man: Homecoming, which are otherwise only available on 4K Blu-ray.

Sky Q has a similar quantity of 4K films, with TV shows and sport added into the mix, but HDR isn’t featured, and you obviously need a Sky dish and subscription.

Apple TV’s simple pay-as-you-go model will be more appealing to many, particularly as the extra pixels don’t cost any extra - most films can be bought for between £10-12 or rented for £5.50, the same price as the HD versions and loads cheaper than buying the 4K Blu-rays.

If you’ve already bought a film on iTunes that is subsequently upgraded on the store to 4K, you automatically get the new version at no extra cost. All of which is good news for those who want more affordable 4K content.

MORE: 4K Ultra HD Blu-ray - all the 4K discs on sale and coming soon

Performance

But not all 4K content is born equal, and an Apple TV 4K stream is no match for the equivalent UHD disc when it comes to picture quality. Play Deadpool on 4K Blu-ray and there’s an extra layer of crispness and detail in the foul-mouthed anti-hero’s red suit.

There’s a little more punch and insight into the darker areas of the picture too, which is an unavoidable consequence of streaming. With the alternative being downloading uncompressed 4K films onto a hard drive, it’s no surprise Apple chose streaming.

However, 4K movies streamed via iTunes look lovely in their own right. Compared to a Full HD stream, there’s a clear step-up in sharpness and definition, giving the image much more solidity and depth.

Detail is also lifted significantly, making clothing textures, such as the furs and leather in the early scenes of Wonder Woman, appear more natural, realistic and distinct.

But the addition of HDR is undoubtedly an even bigger upgrade, as it makes movies pop from the screen. Whites are pure and bright, colours are more vibrant and vivid, and blacks deeper and more solid. It’s simply a more exciting and enticing picture.

So far, we’re only really talking about HDR10 content, but the Apple TV 4K also carries some movies with Dolby Vision, a more advanced version of HDR that’s applied on a frame-by-frame basis and capable of even better results.

If you’ve not experienced 4K HDR from Netflix before, you’re in for a treat. If you have, the performance is essentially the same as that provided by your TV. The extra power of the A10X chip doesn’t translate into an enhanced Netflix performance, but perhaps that’s not really a surprise.

That the Apple TV 4K no longer upconverts content to HDR really is cause to be thankful, as some older content looked artificially bright. Now you get your content in a more natural form. Everything is still upscaled to 4K, but if you’re watching on a 4K TV, that would happen somewhere in the chain anyway. The Apple TV 4K is an accomplished upscaler, boosting resolution to match your TV without everything looking peculiar or over-sharpened.

That Apple has gone as far as supporting not just HDR10, but Dolby Vision too, is cause for celebration, but it also makes the decision to not support Dolby Atmos a bit perplexing.

After all, why not go the whole hog? In fact, even Dolby True HD and DTS Master Audio miss the cut. What’s more, the Apple TV 4K insists on doing its own decoding, passing to your receiver only either PCM or Dolby Digital 5.1, depending on the setting you’ve selected.

It may be evidence that Apple feels picture performance is more important than audio, and perhaps it’s right – surround-sound systems, let alone Atmos ones, aren’t exactly commonplace.

But whatever the reasoning, the Apple TV 4K does at least sound good, delivering a crisp, clear, weighty and solid performance. When fed into an appropriate system, it produces a surround-sound field that’s accurate and atmospheric.

It just feels that a few minor adjustments – simply bitstreaming Dolby Digital Plus would be a start – would lift it further.

Verdict

When we first tested the Apple TV 4K back in October, we agonised over the rating. On the one hand it delivered the best, biggest and most affordable library of 4K movies available, but the app gaps were impossible to ignore and the insistence on upconverting everything to HDR was a little disappointing.

Apple has listened to the complaints and, in just three months, addressed practically all of them. With the exception of All4, the UK’s core catch-up apps are now present, Amazon Prime Video has finally joined the party, and content can now be output in its native frame rate and dynamic range.

That exclusive catalogue of 4K content continues to be the Apple TV 4K’s greatest strength, though, and it’s growing at a seemingly exponential rate, embarrassing rival services for choice as well as price.

We’d love Apple to up the TV 4K’s audio game but, even without Dolby Atmos, the Apple TV 4K is now the best video streamer you can currently buy.

Read all our Apple reviews

The Competition 

Amazon Fire TV 4K (2017)

Our Rating 
0%
Price from £59.99

Google Chromecast Ultra

Our Rating 
0%
Price from £69

Sony UBP-X800

Our Rating 
40%
Price from £293.99
Breakdown 
Performance
Features
Build