My M2Z is updated to the latest firmware with RID and works fine. I also use the Smart Controller and needed to install the latest version of GO4 and reboot both for everything to work properly. So I would think whatever phone or display you use...
Definitely an advantage to using an external RID module. Unlike the drone RID broadcast, the external RID modules do not continuously also update the pilot location, so if you launch and leave, you can conceal your new location, away from the...