Will my Garmin/Polar/Magellan/Wahoo/Mio/Jawbone/Runkeeper tracker connect to the Qantas Assure App?

As long as the device is using a co-motion processor and is able to connect to Apple Health.

Please note that iPhone 5s and iPhone 6 afterwards have an integrated co-motion processor and do not need to connect to a tracking device.

To determine whether the device tracks steps and connects to Apple Health, please check with the device manufacturer.