After what felt like an interminable wait, Google has at last launched the Chromecast in the UK. The £30 device lets you make any TV ‘smart’ – all you need is a free HDMI input on your television and a Wi-Fi network. It's a low-cost competitor to Apple TV and allows you to stream media using smartphones, tablets, PCs and laptops. See also: Chromecast vs Roku Streaming Stick comparison review.

You can watch YouTube videos, Netflix, Vevo and other services, but on launch day, BBC iPlayer is the only UK catch-up TV service to support the Chromecast. Here's everything you can currently watch on a UK Chromecast. See Best free apps for Chromecast you don't know about.

The device comes with a short HDMI extension cable in case you can’t plug it in to your TV directly, and it’s powered by an included microUSB cable and mains adaptor. However, if your TV has a free USB port, you can use that to provide power instead. See Apple TV vs Chromecast review.

Google Chromecast

There’s no remote control since the idea is that you use your Android smartphone or tablet to decide what to watch and to pause, rewind or fast-forward the video. You can also use an iPhone or iPad running iOS 6 or later or – if you don’t own a compatible device - you can use any PC, laptop or Google Chromebook and control things from Google’s Chrome web browser. See How to set up and use Chromecast.

Chromecast: Simple setup

iPlayer Chromecast Android Setting up the Chromecast is easy and takes less than five minutes. Here are the full step-by-step instructions, should you need them. See What can you watch on Chromecast: why Chromecast is a game changer.

Once you’ve installed the app (or Chrome extension) and connected the dongle to your router’s Wi-Fi, you’re ready to ‘cast’. This involves launching a compatible app – see the full list – and tapping the Chromecast icon within it:

Chromecast icon

A pop-up box prompts you to choose a Chromecast (useful if you have several and, at this price, you may well have a couple) then returns you to the playback screen where you can tap the play button.

The video will buffer and begin playing on your TV. You can use the app’s playback and volume controls, but you can also switch to another app to check your email, browse the web, play a game or anything else without interrupting playback.

There’s no Chromecast interface as such, so it isn’t quite like an Apple TV or Roku where you use a remote control to navigate through content. Apart from the ‘home screen’ which is presumably there just so you know the Chromecast is working, everything is controlled from a companion device’s screen.

iPlayer Chromecast TV

Chromecast: using the dongle

‘Casting’ is a somewhat misleading term since, for the majority of the time, video isn’t being sent from your smartphone or tablet. Instead, the app merely sets up a stream from the internet directly to the Chromecast. At least that’s the way it worked in most of the apps we tried, including YouTube, iPlayer and Netflix.

See also: Best free apps for Chromecast you don't know about.

YouTube even lets you add videos to the queue: an obvious 'Add to TV queue' pops up on the Android app when you browse to another video, and the same option appears on iOS, but it's slightly hidden under the Share menu.

The Chromecast button appears in Netflix for iOS and Android too, and works like a charm. Once a video is playing, you can put your phone or tablet to sleep to save battery life, and still pause the playback from the lock screen, or pick up the controls from another device on the same Wi-Fi network.

Google's Play Music and Play Movies & TV apps on Android are also supported and let you cast content you've bought or rented from the Play Store. We were unable to play albums that we'd bought from Google Play - we tried playing both music that was downloaded to our smartphone as well as songs stored in Google Music, but nothing worked. The album art appeared on the TV briefly, but  was then replaced by a "cannot play side-loaded music" error message.

Strangely, there’s no way to cast photos and videos from your camera roll to your Chromecast, whether you’re using an iPhone, iPad or Android device. Third-party apps such as AllCast can do this but when we tried the free version, there was a 15-20 second delay before a photo we’d tapped was shown on screen. Videos wouldn’t play at all.

As you’d expect, more than one device can be set up to control the Chromecast. This could create problems if two or more people have the app installed and want to watch different things. As it stands, there’s nothing to stop someone playing a new video: it cuts off any existing stream and overrides it. A minor issue, granted, but it would be nice for the person playing the current video to get a pop-up on their smartphone asking for permission to play a new one.

Video and audio quality will depend on the source video. The worst-quality YouTube videos naturally look awful on a big-screen TV, but good-quality 1080p footage looks pretty good. The Chromecast supports 5.1 surround sound, but since audio is output through the HDMI connector, you’ll need a TV with an optical or coaxial S/PDIF output which is connected to a suitable surround-sound amp and speakers in order to hear multichannel audio. Similar to video quality, the availability of 5.1 sound will depend entirely on whether the video you’re playing has a 5.1 soundtrack.

Google Chromecast review: bottom line

If you don’t already have a way to watch Netflix, iPlayer, YouTube and other online video on your TV, the Chromecast is great value at £30.

However, if you already have a smart TV the Chromecast will appeal only if it offers a service that your TV doesn’t, such as Netflix.

Also, when compared to rival streaming boxes such as the Apple TV and forthcoming Roku Streaming Stick, the Chromecast doesn’t offer very much. Or, more accurately, it doesn’t offer very much at the moment.

It’s almost certain that the other UK catch-up TV services will add Chromecast support to their apps in the near future and there are sure to be plenty of other apps offering the ability to ‘cast’ content to your TV.

We’re bemused as to why Google hasn’t added Chromecast support to the native Android Gallery app. Beaming your photos and videos via AirPlay is one of the Apple TV’s best features.

Still, for this price, it’s worth the risk that the apps you want never get Chromecast support. Bear in mind, though, that’s it’s even cheaper and easier to buy an HDMI cable and hook up your laptop to your TV – and there are plenty of Android tablets with an HDMI output. As long as an app allows video output over HDMI, you’ll be able to watch whatever you want on the big screen.

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Google Chromecast: Specs

  • HDMI dongle, requires web connection, powered via microUSB