I tend not to trust people who live in very tidy houses. I know that on the surface there is nothing wrong with a person being well-ordered and disciplined. Nothing except that it leaves the impression of that person having lived in the confines of a stark institution which although he or she has long since left remains within.
In a wristwatch imagine the battery is in the strap and there's a medical sensor in there connected to the internet. If someone is monitoring that they could phone up if the user has forgotten to take some medication. This could save hundreds of dollars in medical fees later. What's missing? It's a stable battery.