If it helps, they don’t have the battery life to be constantly recording or sending that much traffic. And that stuff can’t be invisible, us nerds can see it all. That’s one of the things dystopian sci-fi dramas have to gloss over, it all still runs on the properties of physics, sending a wireless message, even if the contents themselves are encrypted, we can still figure out where it is going and how much data it is by reading the wave. No way to block that from being possible.