Vivo has taken another step towards revealing the X Fold, its inaugural foldable smartphone. The Vivo X Fold will follow the form factor of many existing foldable smartphones like the Galaxy Z Fold3 and Mate X2.
https://www.notebookcheck.net/Vivo-X-Fold-Teaser-for-upcoming-foldable-smartphone-lands-as-company-confirms-March-28-announcement.610091.0.html