Fitbit Sense 2.
Cheapest price yet.
Via Amazon UK.
I think charger will need converter plug for Aus.
https://www.tomsguide.com/reviews/fitbit-sense-2
Very reliable health monitor accepted for ECG, O2 sensor sleep etc.
A few upgrades expected to improve software and third party apps- with the caveat that it may never happen.
Enjoy ppl
The third party app sucks btw. I got the Sense last year.