The South Korean electronics giant has not announced an official release date for the next-generation device but a video posted to the firm's YouTube channel suggested it will be fully unveiled at its Unpacked event.
Samsung Senior Vice President Justin Denison described the phone as the "foundation of the smartphone of tomorrow," though few details were revealed.
Rendered images based on leaked specs of the handset suggest the Galaxy X will have a smaller front-facing screen and a larger inward-facing screen that unfolds like a book.
Other rumours hint that the phone could feature a pop-up camera, similar to the Galaxy S90.
Samsung's foldable phone is expected to be called the Galaxy X or Galaxy F (Samsung)
The price of the phone is anticipated to be set at around 2 million won (£1,380), according to The Korea Times.
It will also come with 5G functionality in markets that support the next-generation mobile communications network, such as the US and South Korea.
Samsung is not the first smartphone maker to develop a foldable phone, with fellow tech giants Huawei and Xiaomi also reportedly working on their own versions of the technology.
Samsung confirms Galaxy X foldable phone release date
Chinese startup Royole beat more established phone manufacturers by unveiling its FlexPai folding phone in 2018.
Royole CEO Bill Liu said at the time that the worlds' first foldable smartphone would "forever change the consumer electronics industry."
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