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Personal Devices · Recorded milestone

Foldable phone

Recorded year2018

A phone that opens like a book into a small tablet, then folds back to fit in a pocket.

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Built on

Float glassRecorded · 1959enables
Light-emitting diodeRecorded · 1962requires
SmartphoneRecorded · 1994enables
Touchscreen tabletRecorded · 2002enables

Led to

Tri-fold phoneRecorded · 2024enables
Rollable-screen phones and laptopsRecorded · 2025enables

Sources & evidence

No individual source links are recorded for this milestone. Source coverage and review status vary across the atlas.

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