Royole's FlexPai is a foldable smartphone/tablet device that has a 7.8" 1920x1440 AMOLED display, when unfolded. The display folds outwards, and when folded the device has three different displays (front, back and spine). The FlexPai is based on a Snapdragon chipset, has two cameras, a microSD slot and a fingerprint sensor. The device uses the company's unique Android-based Water OS that automatically adapts different viewing modes for different folding angles and user scenarios
The Developer Mode FlexPai was available from Royole for $1318 (128GB model) in December 2018, but is no longer so.
7.8" 1920x1440 foldable AMOLED