Person 1: Excuse but do you have the time?
Person 2: I'll just get my phone out and check.
Now, based on the above if Apple had marketed the iWatch or whatever it's called as an extension to your phone then I'm guessing it might have actually done quite well however at the end of the day there are few people that feel the need or want to wear watches when you have a smartphone with lots of information in your pocket at all times.