According to a Fast Company report, future versions of Apple Watch will use solid-state side buttons instead of physical buttons that you need to press for, and it can provide haptic feedback through the Taptic Engine vibration engine.
The report said that Apple will still adopt a two-button design, namely a digital crown and a side button, but these two buttons are not the traditional physical buttons.
This kind of solid-state button is the same as the solid-state home screen button introduced on the iPhone 7 and iPhone 7 Plus. It uses the Taptic Engine to create haptic feedback and brings users a physical button-like experience. The same technology is also used on the MacBook Pro trackpad.
Apple is said to bring the solid-state button to its wearable products as early as this year, or it will come next year at the latest. In addition, The company is still designing a buttonless Apple Watch, which it would provide support for swipe gestures.
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