Wait, how? Haptic feedback lets you know you did something. A simple "bounce" is convenient when directly interacting; However, it does nothing to let you know what you did. To the point that it almost equivalent to the bouncing icon on your task bar.
That is, I expect the natural response to most of these feedbacks is to look at your watch. That not the case?
That is, I expect the natural response to most of these feedbacks is to look at your watch. That not the case?