A mobile device includes a chassis including a back panel and sidewalls. The device also includes a display panel connected to the chassis opposite the back panel. The device further includes an actuator assembly including a first actuator and a second actuator stacked on the first actuator, the first actuator being rigidly coupled to the back panel and being configured to vibrate in a plane of the back panel, and the second actuator being rigidly coupled to the display panel and configured to apply a force to the display panel out of a plane of the display panel. The device also includes an electronic control module in communication with the actuator assembly, the electronic control module being programmed to independently activate the first actuator and second actuator to generate a haptic vibration in the chassis and a haptic vibration in the display panel, respectively.