As others have noted, the ubiquity of Apple products makes these an increased level of threat. They are much smaller with longer life than a GPS tracker with cellular data upload and work anywhere in the world that there are iPhone users. Well, possibly not in China or Russia - but the thing of it is you don’t need to have a cellular data plan in the regions it’s used in.
One could sew one of these into a purse strap or other places that a cellular tracker wouldn’t fit. And the ubiquity of iOS devices and the integration of AirTracker tracking into the OS means the tracking is much, much better than tile. So while these might be evolutionary rather than revolutionary, the evolution is a whole new level of efficacy.
