Hi, @tallowoodridge
Thanks for posting, and welcome to the Roku Community.
The Roku Ultra and other Roku devices are currently unavailable in the Australia region. In the meantime, Roku TVs are available in Australia, and the Roku streaming platform is built right into your TV.
Roku TVs are simple to set-up and easy-to-use. They come with a simple remote, and an intuitive user interface with powerful features like Roku Search which makes it effortless to find what you want to watch. Roku TVs give you access to thousands of free and paid channels, so you can stream almost anything.
For more information, you can visit this link at Roku TV Australia.
We hope this answers your concern, and feel free to reach out to us anytime if you have further concerns or inquiries.
Best wishes,
Kash
Takashi O.
Roku Community Moderator
