You can see the full list of supported devices here. But, to summarise, Peacock is now available to watch on the following devices:

Desktop browser: Peacocktv.com/tv Apple devices: iPhone, iPad, iPod Touch, Apple TV 4K, Apple TV HD, and the Apple TV app. You'll be able to sign up for Peacock or upgrade your membership with in-app purchases as well. Google devices: Android phones and tablets and Android TV devices, Chromecast, and Chromecast built-in devices. If you sign up through Android and Android TV, you get free access to Peacock Premium until 15 October. Xbox One consoles: Microsoft's Xbox One family of devices, including Xbox One S and Xbox One X. You can even get it from the Microsoft Store. You'll be able to sign up for Peacock or upgrade your membership with in-app purchases on Xbox. Sony consoles: PlayStation 4 and PlayStation 4 Pro consoles (from 20 July 2020). Smart TVs: Vizio SmartCast TVs and LG Smart TVs. Amazon: Peacock is supported on Fire TV and tablets with Fire OS 5 and above. Roku: Peacock is supported on Roku 2 and later devices, including soundbars. https://www.peacock4tv.com/