One way to see the level of indoor location precision available to them is to open the mobile app in-store map of a retailer which often shows a little real-tim

One way to see the level of indoor location precision available to them is to open the mobile app in-store map of a retailer which often shows a little real-time dot to represent your location. (Readers should note, of course, that this is willingly giving them loads of data from that device) Target's in particular is crazy precise in-app.