Traveling abroad – data sim options? (Australia + Hong Kong)

Hello, I am possibly travelling to Australia at the end of March for two weeks, and will have some long stops in Hong Kong for plane transfers. Does anyone have any recommendations on data sim cards that would work in both Australia and Hong Kong?

Would prefer to purchase online as I live rurally in Miyagi.

Thanks!

Edit: My phone is sim free, and I am currently using Mineo for my service in Japan.

Edit2: Asus Zenfone (android) – older model… from about 2020.

6 comments
  1. if you have iphone or something supporting esim look at esimdb, lots of options available. airalo seems to come up for a bunch of destinations. best part is you don’t need to deal with shipping or returning the sim card.

  2. just use wifi in HK airport.

    In Australia, you should buy prepaid SIM (Optus / Telstra etc) They sell it everywhere (in Coles supermarkets or Post office)

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