Samsung has revealed the Samsung Galaxy Fold, its tenth anniversary smartphone, that comes with a new kind of smartphone design - a foldable screen that can turn the phone from a smartphone into a tablet.
The fold is one of the most powerful phones ever built, if it can be called a phone. It arrives alongside four other Samsung phones, the Samsung S10, S10 Plus and a cheaper Galaxy S10E, as well as its first 5G smartphone.
The Fold will be one of the most expensive phones ever made, costing more than £1,500.
Here is everything you need to know:
What is the Samsung Galaxy Fold?
The Galaxy Fold is Samsung's first folding smartphone. Unveiled at a San Francisco event, it serves as a smartphone with a 4.6-inch display and opens like a book to become a 7.3-inch tablet.
"We are giving you a device that doesn't just define a new category, it defies category," said Samsung's Justin Denison at the event.
Samsung has built this new phone to attempt to cash in on demand for phones with ever bigger screens, but there are plenty of sceptics.
The design is untested and a break with convention of smartphone designs in recent years. Samsung, however, hopes it can revive a stagnant smartphone market get the lead on Apple.
How will this work?
Samsung's Justin Denison touted the Fold as "a one of a kind luxury device" and boasted that it lets three apps operate simultaneously on its large screen.
"You can watch a YouTube video of Hawaii; text your friend about it, and browse travel options all at the same time," Denison said while showing off the device.
First, you can use the folded phone like a normal smartphone for calls, texts and other normal phone functions.
Users can then press a button and fold out the phone into a device that is over a single, larger flexible screen.
What specs will the Galaxy Fold have?
The Galaxy Fold will be one of Samsung's most powerful smartphones ever made. It will come with a massive 12GB of RAM and 512GB of storage. It will also feature dual battery technology that will keep both screens powered. It will have 4,380mAh battery with fast charging. Inside will be a Qualcomm 7nm processor.
Samsung Galaxy Fold camera
The Galaxy Fold will have an unprecedented number of cameras on board - six in total. This will include a 10MP "cover" camera on the front of the main phone, a rear triple camera with 12MP ultra wide lens, 12MP wide angle camera and a 12MP telephoto lens with 2X optical zoom, and a front dual 10MP selfie camera.
So to explain, that's a regular selfie camera, a triple rear camera and dual selfie camera for when the phone is unfolded.
How much will the Samsung Galaxy Fold cost?
The Samsung Galaxy Fold so far has a US price, which is going to set buyers back $1,980. The European price is said to be up to €2,000, which could put the UK phone at between £1,500 and £1,800.
When can I buy the Samsung Galaxy Fold?
The Samsung Galaxy Fold will be on sale from April 26.