Samsung's highly anticipated foldable-screen phone, known as the Galaxy X, is expected to launch during a special event on 11 October (here's how you can watch live).

The event is taglined '4x fun', which fits with rumours that as well as the fancy new screen it will feature four rear cameras. Well known leakster Ice Universe recently tweeted that an upcoming Samsung phone would feature four cameras, and later confirmed that all would be on the rear of the device.

Though we have no leaked images of the Galaxy X in the flesh, concept renders published on nieuwemobiel.nl give us an idea of what it could look like.

Galaxy X concept

Other specs are likely to follow that which we've seen in the recently announced Note 9, such as up to 512GB of storage, 8GB of RAM and an S Pen stylus with Bluetooth support. We could also see the same camera tech, a 12Mp dual-lens model with an AI Scene Optimiser mode and Flaw Detection.

When is the Samsung Galaxy X release date?

Although it was originally expected to be unveiled during CES in January 2019, all recent talk over the Galaxy X has pointed to 2018. The company's own CEO DJ Koh has also been quoted in an interview with CNBC stating that Samsung will unveil details of the foldable phone later this year.

It all tallies with news that the Galaxy X has already passed certification and the oops moment when it recently popped up on Samsung's support site, suggesting it is nearing completion.

Now we have an invitation to a special event on 11 October. Promising 4x fun, it's surely got to be the Galaxy X. Here's how to watch the live stream.

Samsung Galaxy X live stream

The bad news is that Samsung’s quirky folding phone might be tough to bag, with Forbes stating that “the expectation for the Galaxy X is as a limited-run device in a single territory - more than likely the home territory of South Korea”.

What is the Galaxy X price?

If rumours on the Galaxy X pricing are true, we have no trouble believing it will be a rare handset. Samsung's foldable phone is expected to cost as much as $1850.

That's around £1400, but it's unlikely we'll pay that in the UK. Usually pound and dollar prices are more or less the same, so we could be looking at a smartphone that's just a couple hundred pounds cheaper than buying two iPhone Xs.

Galaxy X or Galaxy F?

It's widely thought that the upcoming foldable phone from Samsung will be the Galaxy X.

However, Twitter user @MMDDJ_, who has a good track record with phone leaks, suggests that it will actually be named the Galaxy F instead. 'F' for foldable?

What are the rumoured specifications for the Galaxy X?

The Samsung Galaxy X was originally rumoured to be a 5in phone that could fold out into an 8in tablet, but it’s now suspected to fold out into a 7in tablet.

According to early rumours the screen resolution is expected to be 4K (3840x2160 pixels), ensuring that it remains high-res when folded.

Samsung Galaxy X unbreakable panel

A press release from Samsung touting an unbreakable panel could be used for the Galaxy X. Samsung Display has developed the "flexible OLED panel with an unbreakable substrate and an overlay window securely adhered to it".

The firm said that it will be used on smartphones along with "display consoles for automobiles, mobile military devices, portable game consoles and tablet PCs for e-learning".

The Galaxy X could also feature a dual-camera at the rear, one of the latest Qualcomm Snapdragon processors - most likely now the Snapdragon 845 or Exynos 9810- and at least 6GB of RAM. There should be a microSD card slot, but the battery will not be removable. 

A patent application filed by Samsung in late 2016 shows some renders of what the eventual Galaxy X may look like (via Sammobile):

Galaxy X patent

What is a foldable phone?

A foldable phone is exactly as it sounds, one that either folds inward (like a clamshell phone) or outward and reveals a tablet-like device when stretched out. This is possible with the use of a bendable (rather than flexible, as seen in the Galaxy S7 edge) OLED panel.

Samsung, Lenovo and LG have each showed off bendable displays and devices at various industry events, and have registered many patents for the technology. Previously called Project Valley, Samsung’s technology has become known as the Samsung Galaxy X, which may or may not be its eventual name upon release.

Samsung originally worked on fold-in phones, which close up like a wallet, but having completed its work there it has moved on to fold-out phones. These should be more convenient for the user, who wouldn’t need to unfold the phone every time they wanted to use it.

Read next: Best new phones coming in 2018 and beyond

Follow Marie Black on Twitter.