The foldable phone era has officially begun. Samsung introduced the world to its first foldable phone, a device rumored to be called the Galaxy X or Galaxy F, and purportedly to be released early next year. Samsung saved most of the official details for a grand unveiling along the lines of the Galaxy S9 or Note 9,
choosing instead to tease its foldable phone at a Nov. 7 Developers
Conference keynote. We saw a short video, and a prototype momentarily
held up in an executive's hand.
Although Samsung never displayed
the foldable phone up close -- not even behind museum glass -- the
device is plenty real. It's conceptualized enough to earn Google's backing. In fact, Samsung's project seems to have spurred official Android support
for all foldable phones, no matter the manufacturer. Meanwhile, Samsung
gathered developers in a Wednesday afternoon session to share a few
more details, such as the phone's 4.5 and 7.3-inch screen sizes.
Despite the dribs and drabs of information, the foldable phone's brief onstage appearance raised more questions than answers. Here's what we know -- and what's still to come.
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| © Provided by CBS Interactive Inc. One UI only works with Android 9 Pie, and resembles some of Pie's design concepts. The Galaxy S9 Plus running Android Oreo is on the left; on the right you have a demo Galaxy S9 Plus with One UI on Android Pie. |
Despite the dribs and drabs of information, the foldable phone's brief onstage appearance raised more questions than answers. Here's what we know -- and what's still to come.
Samsung's foldable phone is here, with a brand-new Android UI
What's the phone called?
Samsung didn't give the foldable
phone a name, but rumors suggest that it'll be called the Galaxy X or
Galaxy F. The "F" could stand for "fold" or "flex". The "X" might mean
"extra" or "10", since there are 9 Galaxy S phones out -- though we do
expect to see a Galaxy S10 around March this year.
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.
Samsung's prototype has a tablet-like screen that closes inward like a
book, but Royole's FlexPai,
another foldable phone, has an outward-folding screen, which means the
"screen" is on the outside. There's no single definition.
Didn't ZTE make a foldable phone?
Last year's ZTE Axon M
was an early version of a foldable phone that attached two separate
phone screens through a central hinge. Samsung's foldable phone (and
Royole's FlexPai) appear to have unibody displays that fold at the
midpoint. A magnet secures the FlexPai's screen in the "closed"
position.
We can credit the Axon M with exploring different new
ways to use a dual-screen device; Royole has already adopted some of
these, for example, mirroring the contents of both screens so people on
either side of a table can watch the same video clip. ZTE could very
well come up with a second-generation foldable (or "foldable") 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 closer look at Royole's foldable, bendable FlexPai phone
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| © Provided by CBS Interactive Inc. |
What happens when you open and close Samsung's phone when you're using an app?
Like
the Royole FlexPai, this foldable phone will automatically transfer the
app or screen you're looking at in the folded-up "closed" position to
the "open" position, and vice versa. We noticed some lag here on the
FlexPai, but haven't had a chance to see how Samsung will handle the
transition.
What's so great about Samsung's display?
Samsung
created a new display for its foldable phone, the Infinity Flex
Display. The company said that it had to modify the usual layers that
are part of any display (this is what lights up the "screen" you see on
your phone). All displays are made of layers, but they're usually
stacked and unmoving. 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.
The company also needed to
make the Infinity Flex Display thinner than any other mobile display. It
cut the thickness of the polarizer layer, which helps make the screen
legible, by 45 percent.
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, and the latest rumor
pegs March as the release date. We expect Samsung to hold a separate launch event to introduce the details. Again, this was just a sneak peek.
How much will it cost?
The
short answer is that we don't know because Samsung hasn't announced it.
However, it's easy to guess that this will be an expensive device. The
Royole FlexPai's foldable phone for developers costs $1,318 for a device
with 6GB RAM and 128GB of internal storage. The version with 8GB RAM
and 256GB storage goes for $1,469.
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. We can expect
devicemakers like Samsung (and Royole) to justify high prices based on
total screen real estate. After all, they reason, you're getting a
tablet and phone in one -- and phone prices are only getting higher.
What's the battery life like?
Samsung
aims to give its foldable phone battery life that lasts as long as
current Galaxy smartphones, said Jisun Park, the engineering director
and head of the system software group for Samsung's mobile business.
That's despite the fact there's more active screen to drain the battery.
The US version of the Note 9 lasted for an average of 19 hours and 20
minutes in CNET's looping video drain test.
Where is the battery anyway?
We
don't have access to the design particulars, but batteries don't bend.
Expect a large battery to sit on one side and many of the other
components to balance it out on the other. One major complaint we had
with the ZTE Axon M was that it felt imbalanced with the half containing
the battery drastically thicker and heavier than the other half.
Samsung will have to watch out for that.
Is that picture what the foldable phone will really look like?
Almost
definitely not. Samsung showed off a prototype model, commenting that
the real parts were hidden within. Samsung isn't ready for the public --
or competitors -- to see a final design.
If there's one
breadcrumb officially left us about the foldable phone's eventual shape,
it's in the new One UI operating system. The company mentioned that the
rounded rectangular edges that form a major design motif are meant to
match its devices' rounded edges. The prototype foldable phone has
90-degree edges and thick bezels. We can anticipate a softer look.
What is the device made of?
Materials
are a big deal because buyers have been conditioned to spend more for
aluminum, ceramic and glass. But the FlexPai uses a plastic screen and
body to achieve flexibility and keep costs in check, and the ZTE Axon M
traded down camera quality and other parts to keep it affordable.
It's
possible that the foldable phone will have at least one plastic screen.
When CNET asked, Samsung's Park suggested during a session for
developers that the exterior screen could possibly have a different
material topping the display than the interior screen. Our guess is that
the 4.5-inch screen could be made from Gorilla Glass while the 7.3-inch
screen inside could be made from plastic.
Samsung did not respond to a request for comment.
Here's every Galaxy S phone since 2010
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. Samsung didn't
share details about how the hardware and software share messages.
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.
Samsung is making the One UI beta available this month, but only for
Android 9 Pie users. It's a fair bet that the foldable phone will launch
with Android Pie.
Which apps will work on the phone?
It's
still early days, so we don't have many details about apps. That's part
of the reason Samsung unveiled the device at SDC, its developer
conference: To get developers on board with supporting the phone.
Samsung's in-house apps, such as SmartThings, will presumably work on
the device, and longtime partner Flipboard showed off its initial
efforts on an app.
Since the biggest benefit is the ability to
multitask -- running three apps at one time or accessing more features
in a particular app at once -- the onus is on developers to create
compelling apps that work seamlessly on the foldable phone. Samsung is
relying on app developers to help innovate as they did with
stylus-compatible apps for the Galaxy Note.
When you open the device, does the smaller screen go dark?
At
the moment, Samsung's design will "turn off" the 4.5-inch screen and
open your app on the larger 7.3-inch interior screen, picking up where
you left off.
ZTE's Axon M is a flip phone with twice the screens
What's Samsung's competition like?
Small at this point, but
the future looks fierce. The clamshell ZTE Axon M isn't a major
competitor, and neither is the Royole FlexPai, even though it beat
Samsung to a genuinely foldable display. But we do know that LG and Huawei have their own plans for foldable phones in the works. LG is rumored to launch as early as January at CES 2019.
Will Samsung sell its foldable displays to other devicemakers?
During
an SDC panel Wednesday, a developer asked when Samsung would sell its
display technology to rivals. It declined to comment on that
possibility, but Samsung is one of the world's major display panel
producers. It's likely it will eventually sell the technology to
competitors to use in their own devices.
Is this all for real?
A
foldable phone may feel like a pipe dream, but this is one fantasy that
may actually come to life. Questions remain about the price,
practicality and convenience of using a foldable device.
What comes after foldable?
"Our innovation pipeline includes rollable and stretchable displays," Samsung's Denison said Wednesday during the presentation.
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| © Provided by CBS Interactive Inc. The phone features a bendable 7.8-inch AMOLED screen that's made out of flexible plastic and has a 1,440-pixel resolution. |
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