From the teaser you can see something that starts out looking much like a conventional smartphone, but with edges that extend to create a small tablet, as shown in the image above.
This makes it very different in design to a foldable phone then, but the end result is somewhat similar, giving you the option of either a large screen or a smaller one at any given time.
Lots left to learn
We don’t know anything else about the LG Rollable yet, including when you’ll be able to buy it, but with LG providing a clear view of the front of the phone in a teaser it’s very likely that it will go on sale this year, and possibly sooner rather than later.
Hopefully you’ve been saving though, because a recent leak suggested that the LG Rollable might cost as much as $2,359 (roughly £1,775, AU$3,130).
Still, LG isn’t the only company working on a rollable phone – the Oppo X 2021 concept phone also rolls, as does a concept device from TCL. There’s no guarantee either of those will ever actually go on sale, but sooner or later there are likely to be multiple rollable phones on the market, so hopefully some of them are affordable.