Wearable tech is in its infancy right now, but I think the idea is to bring digital reality of the screen and into your life. The watch doesn't really do too much to accomplish this, but it's more about normalizing a higher level of immersion. VR and augmented reality glasses are the next step, once people are used having a higher level of interaction with computers. (The watches won't be replaced, they'll remain part of the ecosystem.) Smartphones were the first real step in this direction. As insignificant as it seems, having to pull them out of your pocket is a pretty big barrier to total technological immersion. Those five seconds are enough time for some of your sort term memory to flush, and to make more trivial tasks less worth the effort. you might check the weather in the morning on your phone, or you might not. But if it's there on your wrist so readily accessible, you wouldn't be able to not check it.