3D Touch is a pressure-sensitive technology developed by Apple for its devices, allowing users to interact with their screens in a more dynamic way. By applying different levels of pressure on the display, users can access various functions, such as shortcuts or previews, enhancing the overall user experience. This feature was first introduced with the iPhone 6s and iPhone 6s Plus in 2015. It enables actions like "peek" and "pop," where a light press shows a preview of content, while a firmer press opens it fully. However, Apple discontinued 3D Touch in favor of Haptic Touch starting with the iPhone 11.