Hi @Grant1 welcome to the community.
Thank you for sharing your issue.
Are you able to share who you purchased the product from? Overseas eg Ebay etc or Aussie.
Depending on how you paid there may be options for a credit card charge back, or PayPal refund.
Did the product include a clear warranty and product advice it was compatible with an iPhone?
Has the supplier offered to assist fault finding why the device will not pair?
There are several other threads in the community on fitness trackers and smart watches.
