Who Invented the First Touchscreen Smartphone

Touchscreens on phones started more than a decade before the launch of the iPhone. The early technology was based on open capacitance or resistive technologies, which relied on the user applying pressure to display content. The first smartphone to use this technology was the IBM Simon in the 1990s. However, it did not become popular until after the development of touchscreen technology that followed that era. This paved the way for modern smartphones, which rely on advanced touchscreens that offer more accurate and smoother responses.

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