A Taptic Engine is a type of haptic feedback technology used in Apple devices, such as the iPhone and Apple Watch. It uses a linear actuator to reproduce the sensation of motion or generate new and distinct tactile experiences. The Taptic Engine is designed to mimic a home button press, relay system notifications, and reinforce audio alerts. It is also used to give the illusion of a click on Mac trackpads. Apple tunes their Taptic Engines to resonant frequencies optimized for quick, precise taps. The Taptic Engine is a linear resonant actuator, which is the same technology used in PS5s Dualsense, Switchs Joy-Con, or Oculus controller.