What has happened to the resilience and fortitude of the people in our society when something that weighs mere ounces and rests comfortably on the palm of your hand and fits in most pockets is described as some "big ass" device that one must "lug" around?
I'm sorry, but my phone will never replace my watch. It takes two seconds for me to look at my watch and know the time, date, and day. To use my phone for that exact same purpose I'd need to stand up (I'm 6'5" so most chairs put my legs at a sharp angle, making getting into my pocket difficult), reach into my pocket and pull out my phone, press the wake button, and THEN find out the time, date, and day.
Why would I ever forgo a watch to replace it with a more cumbersome method; one I don't always have with me and which isn't always charged? If I need the time, I need it, but my phone isn't always there or isn't always available.
So yeah, my phone will never replace my watch. I might get a new watch, but it definitely won't be smart watch; not until I get 2 year battery life from it.