Skip to main content
  1. Home
  2. Phones
  3. Mobile
  4. Features

I saw the future of folding phones at CES 2024

Add as a preferred source on Google
Samsung's "In&Out" folding phone concept at CES 2024.
Joe Maring / Digital Trends
CES 2026
Read and watch our complete CES coverage here

CES 2024 has barely begun, and I’ve already had an exciting glimpse at the future of folding smartphones.

Samsung is at CES showcasing all sorts of display innovations — including a ridiculous 3D gaming monitor. But what I’m more interested in is Samsung’s newest folding phone concept device. It’s called the In&Out Flip, and it very well could be what future folding phones look like.

I Saw the Future of Folding Phones at CES 2024

At first glance, the In&Out Flip looks a lot like a Samsung Galaxy Z Flip 5. It has a 6.7-inch Full HD+ display that can fold inside of itself to become a small, pocketable square. You’ll notice that there isn’t a cover screen on the outside of the In&Out Flip. Instead, it’s just a slab of glass. How does a flip-phone foldable without a cover screen make for exciting future to look forward to?

The In&Out Flip’s big trick is that it doesn’t only fold in on itself — it also folds outward. That means you don’t need a dedicated cover screen. If you want to keep tabs on your notifications, apps, and more without opening the full 6.7-inch screen, you can just fold the phone outward and have the main display transform into its own cover screen shape.

Recommended Videos

Is this the most practical design for a folding phone? There are plenty of reasons to think not. The main issue is that the foldable screen is fully exposed if it’s folded outward, leaving it susceptible to all sorts of damage. From a purely practical standpoint, it doesn’t make the best sense.

But let’s not think practically for a second because I think this new type of folding phone design is fantastic.

Samsung's "In&Out" folding phone concept at CES 2024.
Joe Maring / Digital Trends

Foldable phones are still exciting, but the industry’s quickly settled on two general types of foldables: ones that look like a Galaxy Z Fold and ones that look like a Galaxy Z Flip. Samsung’s In&Out Flip is a big reimagining of what’s possible with the hinge on a folding phone. Samsung says it’s eyeing the design for use in smartphones and tablets, and while there’s no confirmation if or when we’ll ever see this in a product you can buy, I really hope that we do.

But the In&Out Flip isn’t the only smartphone foldable concept that I got to see. The other, very oddly named one is the “Flip Liple.” No, that’s not a typo. In Samsung’s own words, “The ‘Liple’ is a new design concept that combines the words ‘light’ and ‘simple.’ It aims to lower the price of the product and provide an easy user experience, similar to the existing Flip.”

The Flip Liple also has a 6.7-inch screen that folds the same way a current Galaxy Z Flip does. However, part of the screen folds over the top frame, allowing you to look at the top of the phone to see the time, notifications, the weather, and other information. It’s not quite as exciting as the In&Out Flip, but it’s still another way Samsung is thinking about how it can change how foldables work.

Will the In&Out Flip or the Flip Liple ever come to market in a phone you can buy? Maybe. Maybe not. Even if we don’t see phones like these launch in the immediate future, I still find it encouraging to see how Samsung is playing with flip phone design. Especially coming off a year where the Galaxy Z Flip 5 and Galaxy Z Fold 5 were such iterative updates, it’s reassuring to know that there’s still a lot of creativity happening with Samsung’s folding phones.

The Samsung Galaxy Z Flip 6 and Z Fold 6 almost certainly won’t incorporate this technology. But there’s a chance the Flip 7, Flip 8, or Flip 9 could. I think that’s an exciting thing to look forward to. I’m glad folding phones are already so consistent, but I also don’t want them to stop being weird. And I’m glad Samsung apparently doesn’t want that to stop, either.

Joe Maring
Joe Maring has been the Section Editor of Digital Trends' Mobile team since June 2022. He leads a team of 13 writers and…
I’d trade the Pixel 11 Pro’s temperature sensor for HiLight every single time
I don’t miss the Pixel’s temperature sensor. I need HiLight more
Electronics, Mobile Phone, Phone

During the recent Pixel 11 announcement, Google showcased its new HiLight feature. We had our initial skepticism about it, but what caught my eye more was the temperature sensor being replaced. This was a feature barely anyone remembers (or uses), though it was something unique to the Pixels at the time.

The hardware eventually became capable of measuring body temperature, and I can appreciate the engineering behind squeezing something like this into a smartphone's body. Even then, I rarely had a reason to reach for it in day-to-day use. While I wasn't immediately drawn to the concept behind its replacement, I don't mind making this trade at all.

Read more
I played around with the Pixel 11 Pro Fold. I think Google finally saw the right focus points
The Pixel Fold’s smallest upgrades make the biggest difference
Electronics, Phone, Mobile Phone

Google has a new foldable ready to hit the shelves, and it's quite a compelling package with some alarms going off. I spent some time with the phone earlier today, and after collecting my thoughts, I can’t quite figure out whether I should be excited about it or disregard it in favor of rivals like the Samsung Galaxy Z Fold 8 pair. 

The conundrum is warranted. It’s a $1,899 phone after all, and that’s the base price. But based on my limited time with the phone, it comes out as an overwhelmingly more practical device, especially for buyers based in the US. But let’s set aside the comparisons for the latter part of the debate.

Read more
Samsung may be going in for the full iOS-esque Liquid Glass look in OneUI 9.5
Well, well, well, Samsung could very much adopt the full Liquid Glass look instead of the mild-baked version we see currently.
Samsung Galaxy S26 showing the storage menu on One UI 8.5

Samsung appears to be preparing a major visual overhaul for One UI, with early leaks suggesting One UI 9.5 could adopt a more glass-like design with shinier edges, transparency, and greater visual depth.

The reported changes surfaced shortly after Samsung began rolling out One UI 9 Beta 5 for the Galaxy S26 series. According to Android Central, tipster Fahad Ali shared leaked screenshots of the upcoming interface on X, offering an early look at Samsung's apparent design direction.

Read more