I bought myself a LG G Watch R smartwatch earlier this year. While some of its functionality has been disappointing (step counter not remembering steps, voice commands not working as expected), I have become used to having it on. Today, I switched back to my old Casio watch, which is not quite as smart, even if it does keep correct time by reading the Frankfurt time signal, and has a battery that lasts for years, not just hours (I have to charge the LG every night).
But it is interesting how fast habits form. After replacing the smartwatch with the old dumbwatch, the instinct when the phone buzzes from a message is to look at the watch face to see what it is, rather than at the phone itself.
BTW, since I really did like the Casio watch, this watch face in the Android Play store really won me over.