The subject disclosure is directed towards a technology by which a device includes one or more haptic feedback mechanisms that may be operated in a controlled manner to output amplitude-controlled vibrations. In one aspect, the vibrations from at least two haptic feedback mechanisms are combined, providing different amplitudes at different device locations. In one aspect, a haptic feedback mechanism outputs vibrations with a one amplitude in one state, and another, different amplitude in at least one other state, as controlled by the controller. The different states may correspond to different weights being driven at different times, and/or different positions of one or more weights.