TheoryPhone FZ is a foldable smartphone created by Theorysonic. It was released in March 2018 with the cost of EK $3,000. It is the world's first foldable smartphone with tablet features to release available in public. It has 8.0” screen, with 5.0” cover.


Development of TheoryPhone FZ was started in 2014 after the release of TheoryPhone X5.



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