@AWNJ
I don't see Tapo S500 listed on the TP-Link official website (AU) at the moment. We recommend monitoring the website updates.
Generally, If you come across a new model release, you can check TP-Link's authorized retailers' websites for purchase.
If a model is marked as "coming soon," consult with the retailers for information on the release date.
Due to variations in retailers' sales plans, the availability of new products may differ. For specific details, please inquire directly with the respective retailer.
Click to find TP-Link authorized retailers in your country! Where To Buy