I can pair cadence, power and controllable ok on iMac, but on Android I can only pair cadence and power. It never finds the controllable.
The Samsung Tab 2 is from 2012, which is a somewhat older tablet and may not be supported for use with Zwift Android Beta.
You can check the in development list of Supported Android devices HERE on this forum thread.
If you’re having compatibility issues with an Android device not listed as being currently supported, please feel free to reach out to our team at firstname.lastname@example.org and we appreciate your feedback.