Watch could and should be totally passive. You just fill the screen with one longass bluetooth message, and that is it. Maybe there should be a timer which blan

Watch could and should be totally passive. You just fill the screen with one longass bluetooth message, and that is it. Maybe there should be a timer which blanks the screen after a minute, if the screen is not updated, but other hardware functions seem little superfluous. With Eink-display this would work for MONTHS.