The foldable phone era has officially begun. Samsung
introduced the world to its first foldable phone a device rumoured to be called
the Galaxy X or Galaxy F. 
Samsung's foldable phone is here, with a brand-new Android
UI
What is a foldable phone?
If we go by Samsung's definition, a foldable phone is a
device with a cellular connection (hence the "phone" part) that looks
like a tablet when it's full opened and can close to look like your usual
phone. 
What's the benefit of a foldable phone?
There are two main advantages. First, a foldable phone can
more than double your available screen space. For example, Samsung's model has
a 4.5-inch display that you'll use when it's closed. Then the inside opens into
a 7.3-inch screen. You could argue that you have the equivalent of three
displays to work with.
A larger screen gives you an expanded viewing surface, but
it also unlocks different ways that you can use your device. For example,
Samsung's foldable display will let you multitask in three areas at once
What's so great about Samsung's display?
Samsung created a new display for its foldable phone, the
Infinity Flex Display. The Infinity Flex Display uses a new adhesive that
Samsung developed to laminate the display layers so they can flex and fold
hundreds of thousands of times.
When will Samsung's foldable phone go on sale?
Samsung said it will start mass producing the phone in the
"coming months." The foldable phone will likely start selling in
2019. We expect Samsung to hold a separate launch event to introduce the
details. Again, this was just a sneak peek.
Since Samsung's Galaxy Note 9 for power users starts at
$999, it's a fair guess that a cutting-edge foldable phone would easily start
at $1,500, if not more. 
How does it work?
In general, you'll start using the foldable phone like you
would your usual phone, and then open it when you want to take advantage of the
larger screen space. 
Does it run on Android?
Yes, but there's more. Samsung announced that the foldable
phone, and future phones, will run on a redesigned version of Samsung's custom
software called One UI. 
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