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Creating new and exciting tech products requires thinking outside of the box. At this week’s Mobile World Congress (MWC) conference in Barcelona, we got a peek at some of the research and development happening in the hopes of forging a functional gadget that people might actually want to buy one day.

While MWC is best known for its smartphone developments, we thought we’d break down the most intriguing, non-phone prototypes brought to the show for you. Since these are just concept devices, it’s possible that you’ll never see any of the following designs in real products. However, every technology described below is being demonstrated via a tangible proof of concept. And the companies involved—Samsung and Lenovo—both have histories of getting prototyped technologies into real gadgets.

Samsung’s briefcase-tablet

How many times must something repeat before it’s considered a trend? We ask because Samsung Display this week demoed the third recent take we’ve seen on integrating computing devices into suitcases.

Samsung Display’s Flexible Briefcase prototype uses an 18.1-inch OLED tablet that “can be folded into a compact briefcase for convenience,” per the company’s announcement. Samsung Display brought a proof of concept to MWC, but attendees say they haven’t been allowed to touch it.

But just looking at it, the device appears similar to LG’s StanbyMe Go (27LX5QKNA), which is a real product that people can buy. LG’s product is a 27-inch tablet that can fold out from a briefcase and be propped up within the luggage. Samsung’s prototype looks more like a metal case that opens up to reveal a foldable, completely removable tablet.

The folding screen could yield a similar experience to using a foldable laptop. However, that brings questions around how one could easily navigate the tablet via touch and why a folding, massive tablet in luggage is better than a regular one. Samsung Display is a display supplier and doesn’t make gadgets, though, so it may relegate answering those questions to someone else.

Samsung’s concept also brings to mind the Base Case, a briefcase that encapsulates two 24-inch monitors for mobile work setups. The Base Case is also not a real product currently and is seeking crowdfunding.

The laptop that bends over backward for you

There are several laptops that you can buy with a foldable screen right now. But none of them bends the way that Lenovo’s Thinkbook Flip AI concept laptop does. As Lenovo described it, the computer’s OLED panel uses two hinges for “outward folding,” enabling the display to go from 13 inches to 18.1 inches.

Enhanced flexibility is supposed to enable the screen to adapt to different workloads. In addition to the concept functioning like a regular clamshell laptop, users could extend the screen into an extra-tall display. That could be helpful for tasks like reading long documents or scrolling social feeds.

There’s also Share Mode, which enables you and someone sitting across from you to both see the laptop’s display.

Again, every concept in this article may never be sold in actual products. Still, Lenovo’s prototype is said to be fully functional with an Intel Core Ultra 7 processor, 32GB of LPDDR5X RAM, and a PCIe SSD (further spec details weren’t provided). Lenovo also has a strong record of incorporating prototypes into final products. For example, this June, Lenovo is scheduled to release the rollable-screen laptop that it showed as a proof of concept in February 2023.

Lenovo’s solar-powered gadgets

There are many complications involved in making a solar-powered laptop. For one, depending on the configuration, laptops can drain power quickly. Having a computer rely on the sun for power would lead to numerous drawbacks, like shorter battery life and dimmer screens.

In an attempt to get closer to addressing some of those problems, the Lenovo Yoga Solar PC Concept has a solar panel integrated into its cover. Lenovo claims the panel has a conversion rate of “over 24 percent.” Per Lenovo’s announcement:

This conversion rate is achieved by leveraging ‘Back Contact Cell’ technology, which moves mounting brackets and gridlines to the back of the solar cells, maximizing the active absorption. The … Dynamic Solar Tracking system constantly measures the solar panel’s current and voltage, working with the Solar-First Energy system to automatically adjust the charger’s settings to prioritize sending the harvested energy to the system, helping to ensure maximum energy savings and system stability, regardless of light intensity. Even in low-light conditions, the panel can still generate power, sustaining battery charge when the PC is idle.

We’ll take Lenovo’s claims with a grain of salt, but Lenovo does appear to be seriously researching solar-powered gadgets. The vendor claimed that its solar panel can absorb and convert enough “direct,” “optimal,” and “uninterrupted” sunlight in 20 minutes for an hour of video 1080p playback with default settings. That conversion rate could drop based on how bright the sunlight is, the angle at which sunlight is hitting the PC, geographic location, and other factors.

For certain types of users, though, solar power will not be reliably powerful enough to be their computer’s sole source of power. A final offering would have better appeal using solar power as a backup. Lenovo is also toying with that idea through its Solar Power Kit attachment proof of concept.

Lenovo designed it to provide extra power to Lenovo Yoga laptops. The solar panel can use its own kickstand or attach to whatever else is around, like a backpack or tree. It absorbs solar energy and converts it to PC power using Maximum Power Point Tracking, Lenovo said. The Kit would attach to laptops via a USB-C cable. Another option is to use the Solar Power Kit to charge a power bank.

Lenovo isn’t limiting this concept to PCs and suggested that the tech it demonstrated could be applied to other devices, like tablets and speakers.

A new take on foldable gaming handhelds

We’ve seen gaming handheld devices that can fold in half before. But the gadget that Samsung Display demoed this week brings the fold to the actual screen.

Again, Samsung Display is a display supplier, so it makes sense that its approach to a new gaming handheld focuses on the display. The prototype it brought to MWC, dubbed Flex Gaming, is smaller than a Nintendo Switch and included joysticks and areas that look fit for D-pads or buttons.

The emphasis is on the foldable display, which could make a gadget extremely portable but extra fragile. We’d also worry about the viewing experience. Foldable screens have visible creases, especially when viewed from different angles or in bright conditions. Both of those conditions are likely to come up with a gaming device meant for playing on the go.

Still, companies are eager to force folding screens into more types of devices, with the tech already expanding from phones to PCs and monitors. And although all of the concepts in this article may never evolve into real products, Samsung Display has shown repeated interest in providing unique displays for handheld gaming devices. At the 2023 CES trade show in Las Vegas, Samsung demoed a similar device with a horizontal fold, like a calendar, compared to the newer prototype’s book-like vertical fold:

It’s unclear why the fold changed from prototype to prototype, but we do know that this is a concept that Samsung Display has been playing with for at least a few years. In 2022, Samsung filed a patent application for a foldable gaming handheld that looks similar to the device shown off at MWC 2025:

Lenovo’s magnetic PC accessories

Framework has already proven how helpful modular laptops can be for longevity and durability. Being able to add new components and parts to your PC enables the system to evolve with the times and your computing needs.

Framework’s designs largely focus on easily upgrading essential computer parts, like RAM, keyboards, and ports. Lenovo’s new concepts, on the other hand, offer laptop accessories that you can live without.

Among the prototypes that Lenovo demoed this week is a small, circular display adorned with cat ears and a tail. The display shows a smiley face with an expression that changes based on what you’re doing on the connected system and “offers personalized emoji notifications,” per Lenovo. The Tiko Pro Concept is a small screen that attaches to a Lenovo Thinkbook laptop and shows widgets, like the time, a stopwatch, transcriptions, or a combination.

Likely offering greater appeal, Lenovo also demoed detachable secondary laptop screens, including a pair of 13.3 inch displays that connect to the left and right side of a Lenovo laptop’s display, plus a 10-inch option.

Lenovo demoed these attachments on a real upcoming laptop, the Thinkbook 16p Gen 6 (which is supposed to come out in June starting at 2,999 euros excluding VAT, or about $3,245).

Lenovo has been discussing using pogo pins to attach removable accessories to laptops since CES 2024. PCMag reported that the company plans to release a Magic Bay webcam with 4K resolution and speakers this year.