New Airbus planes have sensors that track most of what you do, even in the bathroom September 14, 2019 https://bgr.com/2019/09/14/airbus-a350-900-sensors-track-passengers-even-bathroom-habits/ Airbus: Airbus Connected Experience goes from concept phase to reality (April 2019) Airbus: Airbus commences in-flight trials of connected cabin technologies (September 2019)
I have mixed feelings about this. On the one hand, it's good that the crew knows what's going on. But it is rather creepy. No more "mile high club", I guess.