Unverified50% confidenceFactExact time

The iPhone uses a capacitive touchscreen, which is fundamentally different from Simon's resistive touchscreen; capacitive screens are more responsive and support multi-touch.

1

Sources

50%

Confidence

Long-term

Relevance

8/31/2026

First Seen

Sources

IBM Simon: The Original Smartphone Born in 1994, 13 Years Before the iPhone

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