Was it the Microsoft Spot? and other wristwatches tried it years ago. The problem is that the engineering cost has to be amortized over the unit sales. Folk also didn't like charging their watches every day or week.
So nothing stopped such from being possible but it was not what enough folk wanted.
Since watches no-longer just SHOW time, on their face, with many having stop-watches, medicine alarms, and a host of other features, I am wondering if anyone has thought of adding caller I.D., with name, to the watch.
My thought is that, like pre-paid phone service, a customer should be able to enter name, address, and so on, on a web-site, which would, then send a code, to the watch, (sent the same way as Atomic clocks self-set).
The watch would, then be "connected", via wireless connection, such as 900 MegaHertz, to the persons own home phone.
As a ressult, when a person is AT home, they wont have to run to the caller I.D., to see who is calling. Their watch would, automatically, switch from time-showing, to show who is calling. When their phone stops ringing, the wrist-watch would revert back to time keeping mode.
I am sure that such an addition would be possible. If watches can be made to TALK to the blind, then, surely, they can be programmed, for caller I.D.
Has anyone done this, yet? If so, please submit web-address, and model number.