Red and green lights show passengers where to find overhead bin space. Sensors tip off flight attendants to which seats aren’t upright and whose seat belt isn’t fastened. Airlines track how much you sleep, how much you’re out of your seat, what you watch and what you eat. The airplane cabin is about to get smart, raising passenger expectations and privacy concerns. Technology that manufacturers are fine-tuning will bring convenience to passengers and information about fliers’ habits to airlines.

Source: Wall Street Journal May 15, 2019 09:31 UTC