Kind of seems like it, using their App though. https://play.google.com/store/apps/details?id=com.sports.wellness. You should ask the company. But if you are taking your phone along, just use Endomondo, it has free live tracking in the free version, and then take along an external battery like the selfloops one. Of course, that wouldn't do HRM, cadence, etc but does doe the live position.
Thanks for the reply. I have asked Garmin, no reply.
I believe their current app only uses BLE. But the new version might use Ant+ also ?
I have had an 800 bought as a gift so will use it, not that fussed about live tracking, I don't have anybody who would look at it. I just wanted to know if it would work.