This paper discusses using high definition (HD) haptics to improve user interfaces in consumer electronics. HD haptics can provide tactile feedback, confirmation effects, and alarms to increase customer satisfaction and task completion speed. The paper describes a new HD mobile development system that uses multiple haptic actuators and sophisticated haptic layers controlled by an embedded software program. This new system is capable of higher tactile fidelity and greater vibration magnitude than existing methods. Potential applications of HD haptics include improving touchscreen interfaces.