I would pay a couple hundred for this watch
I would like a smartwatch with the following capabilities:
It must tell me the time when I look at it.
It must sense my blood pressure or something to automatically dial 911 if I'm having a heart attack.
It must have an emergency button that I can click that will quietly dial 911 and call for help.
It must have a sensor that should I suffer some sort of sudden stop (like crashing the car or being hit as a pedestrian) it will automatically dial 911 for help.
It doesn't need to do anything else. Just be generally useful and save my life.