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Concept
Force Touch
Summary
Force Touch is a haptic technology developed by Apple Inc. that enables trackpads and touchscreens to distinguish between various levels of force being applied to their surfaces. It uses pressure sensors to add another method of input to Apple's devices. The technology was first unveiled on September 9, 2014, during the introduction of Apple Watch. Starting with the Apple Watch, Force Touch has been incorporated into many products within Apple's lineup. This notably includes MacBooks and the Magic Trackpad 2. The technology is known as 3D Touch on the iPhone models. The technology brings usability enhancements to the software by offering a third dimension to accept input. Accessing shortcuts, previewing details, drawing art and system wide features enable users to additionally interact with the displayed content by applying force on the input surface.
3D Touch has three levels of input based on the pressure sensitivity. This enables users to customize a preference of light, medium, or firm press on the iPhone's screen. Force Touch on the other hand, has two layers of interaction. Apple's haptic engine called the Taptic Engine resides in these devices, which houses a linear actuator producing vibratory effects as feedback. Apple allows application developers to leverage the pressure sensitivity of trackpads and touchscreens into their own apps. 3D Touch was discontinued with the iPhone 11 and onwards in favor of Haptic Touch.
Haptic Touch is a feature on the iPhone XR (but not the iPhone XS) and later iPhone models replacing 3D Touch. The touchscreen, which no longer has a pressure sensitive layer, distinguishes between a tap and a long-press using a timed delay to activate certain 3D Touch features (only ones for elements that do not have an action assigned to long press). This feature was added to the iPhone SE (1st generation) with the iOS 13 update and to any iPad capable of running iPadOS 13. As of watchOS 7, only Haptic Touch is recognized, and Force Touch is discontinued on all subsequent Apple Watches.
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Apple Watch
The Apple Watch is a line of smartwatches produced by Apple Inc. It incorporates fitness tracking, health-oriented capabilities, and wireless telecommunication, and integrates with iOS and other Apple products and services. The Apple Watch was released in April 2015, and quickly became the best-selling wearable device: 4.2 million were sold in the second quarter of fiscal 2015, and more than 115 million people were estimated to use an Apple Watch as of December 2022.
Touchscreen
A touchscreen or touch screen is the assembly of both an input ('touch panel') and output ('display') device. The touch panel is normally layered on the top of an electronic visual display of an electronic device. The display is often an LCD, AMOLED or OLED display. A user can give input or control the information processing system through simple or multi-touch gestures by touching the screen with a special stylus or one or more fingers. Some touchscreens use ordinary or specially coated gloves to work, while others may only work using a special stylus or pen.
IPhone
iPhone is a line of smartphones produced by Apple Inc. that use Apple's own iOS mobile operating system. The first-generation iPhone was announced by then-Apple CEO Steve Jobs on January 9, 2007. Since then, Apple has annually released new iPhone models and iOS updates. As of November 1, 2018, more than 2.2 billion iPhones had been sold. As of 2022, the iPhone accounts for 15.6% of global smartphone market share. The iPhone was the first mobile phone to use multi-touch technology.