If a smartwatch is going to replace a nice "dumb" watch, or if it's going to act as a watch at all, it had better tell the time seamlessly whenever you look at it.
Unfortunately, the Apple Watch's limited battery life means the display is dark for most of the day, only waking when you make a time-checking wrist gesture. Sometimes it won't register your wrist movement well enough to wake the display, and you have to repeat the gesture in order to tell the time.
Meanwhile, the Pebble Time's color "e-paper" display is a battery sipper and stays on all day and night for days. Sure, it's not as sharp or colorful as the Apple Watch's display, but at least it tells the time all the time.