The touchscreen (touch-sensitive screen) has revolutionized our lives, especially through its use in smartphones. In the meantime, it has also found its way into sports watches and smartwatches with touchscreens and enables operation with the finger directly on the display. We have put together the most important information about the touch screen for you.

A touchscreen is a touch-sensitive screen or touch screen that you can use your fingers to use a technical device such as a Smartphone, Tablet or any other gadget  operated. Thus, the screen is both an input device and an output device for the user. The screen is made operable with the finger or a stylus by, to put it simply, a touchpad is built under the display, which reacts to touch. If more extensive gestures such as swiping and movements with several fingers are possible, this is also referred to as multi-touch. 

In the meantime, a touchscreen is also often used in smartwatches and sports watches. The touch-sensitive screen built into a watch is of course much smaller. The display of a smartwatch with a touchscreen is usually between 40mm and 55mm in diameter. In some cases, the screen is also of one Bezel surround. For example, you can see the complications in the smartwatch via the touch-sensitive screen Watch Faces serve. However, some smartwatches are still operated at the push of a button and do not yet use a touchscreen. Overall, however, the operation of the smartwatch via touchscreen has prevailed. Many smartwatches also rely on hybrid operation via a touchscreen and corresponding buttons such as a digital crown. 

Which touchscreen is built into smartwatches?

When it comes to touch-sensitive systems, a distinction is made between optical systems and resistive systems, as well as surface-capacitive, projected-capacitive and inductive touchscreens. A smartwatch usually has a capacitive touchscreen. This means that a film coated with a transparent metal oxide (usually laminated onto glass) is built into the watch. The corners of the foil are coated and generate an alternating voltage and a uniform. When the user touches the screen, a slight charge transport occurs, which is measured as a current at the corners during the discharge cycle. The resulting currents that come from the corners are directly related to the position at which the user touched the screen. The controller of the smartwatch then processes the information. Capacitive touchscreens are used in many areas - in addition to smartwatches also in smartphones, tablets and many other devices that are operated via a touch-sensitive screen. The capacitive touchscreen of the Apple Watch can even recognize the pressure level.

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FAQs: The most important questions about touchscreens in smartwatches and sports watches

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