I've been using the Pebble for about 8 months, and it meets my needs, but I don't believe that niche will generate a large market.
During my work week I can glance at my watch and see whose email has just arrived without fumbling for my phone; I can even do this casually in a meeting, glance at my watch while driving (only to get a name) and see who is calling my phone before I yank it out of my pocket or off my belt. I have not tried most of the other apps, don't need them (yet).
Weekends the Pebble sits on the nightstand and some piece of Swiss timekeeping is used. Occasionaly I will look at my analog watch to see why my phone buzzed. LOL
For women, yes, I see it being a problem to gain a large market share. For men, on the other hand, current smartwatch formfactors are not that different from watches like the G Shock, for example, which people currently wear just because they like it. I see it being inevitable.
Much like i didn't feel the "phablet" or huge smartphone up to my ear, I'm not feeling the smartwatch (not since it was first suggested in the late 1990s). They've got to come a long way for me to put one on my writst. Too ugly.
It's only a matter of time before your smartphone is encorporated into the smartwatch, at which time a good percentage of people won't continue to carry a smartphone. To do that, a smartwatch needs to work passably as both watch and phone; always on is necessary for it to function passably as a watch.
This is a very useful device, and very much handy as well as compared to cell phones, but ultimately it is adding the clutter on the desks by adding one more charging device on the table during night time.
How did they achieve "Always on display"? This feature could be an attractive one! Did they use some kind of energy harvesting technique to power the display or is it because of low power consuming display? If the display is always on, how much power the watch would consume and how often it would need to be charged? Also, how hot it will be? I could imagine that the watch would get heated as like any other electronic devices and our body would feel the heat however small it might be. Won't it be uncomfortable?
I predict that people will wear the watches on the opposite hand of their writing hand. For example, right handed people will wear the smartwatch on their left hand so that they can operate it with their (dominant) right hand.
Over the last couple generation of smartwatch from different companies, I see it is only an extension of your smartphone. It put the screen of your smartphone to your wrist with limitation. The screen size is small. Only a few apps can be on the watch. A smartwatch is expected to be more than a dual screen of your smartphone. It should not be just a fitbit + watch either. What should it be? I guess it is a multi-billion dollars question, isn't it? ;)