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Personal Devices · Recorded milestone

Tri-fold phone

Recorded year2024

A phone that folds twice, opening from pocket size into a 10-inch tablet screen.

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Built on

Organic LEDs and semiconductorsRecorded · 1987enables
Foldable phoneRecorded · 2018enables

Led to

Sheets of smart paperForecast · ~2045enables

Sources & evidence

Additional source

Dataset updated 2026-10-18. This individual record has not been separately re-reviewed.