You make an extremely good point. One could guess that a first version of AR glasses would be not unlike the functionality of the watch - a few Complications, s

You make an extremely good point. One could guess that a first version of AR glasses would be not unlike the functionality of the watch - a few Complications, some Notifications, simple apps for stuff like navigation/music. They have all of that, powered by a tiny system-in-package and a little battery.