Samsung's experimental tri-fold smartphone barely lasted three months on the market before being pulled from shelves, yet the company appears undeterred from pursuing unconventional form factors. New intelligence from Korean sources suggests the tech giant is doubling down on alternative designs with plans for both a refined tri-fold successor and an entirely different slideable device over the next two years.
The timing raises questions about Samsung's strategy. Why invest in a second-generation tri-fold after such a brief first attempt? The answer likely lies in what the company learned from that initial release rather than what it sold.
What Went Wrong With the First Tri-Fold
The original Galaxy Z TriFold represented Samsung's most ambitious folding design to date—a device that unfolded into three panels for tablet-like screen real estate. Launched in Korea last December and reaching US consumers in January, it disappeared from the market by mid-March. Samsung reportedly cited manufacturing complexity as a key factor in the discontinuation.
That complexity manifested in multiple ways. Tri-fold devices require two separate hinge mechanisms that must work in perfect coordination. The display needs to fold in opposite directions without creating weak points. And the entire assembly must remain thin enough to be pocketable while housing the necessary battery capacity and components.
The brief sales window suggests Samsung encountered either production bottlenecks that made the device economically unviable at scale, or discovered reliability issues that warranted pulling the product before warranty claims mounted. Either scenario would explain why a next-generation model might prioritize durability and manufacturability over thinness.
The Second-Generation Approach
According to the leak from Korean blog Naver, Samsung is currently testing feasibility for a lighter but potentially thicker tri-fold model targeting a mid-2027 release. The trade-off makes engineering sense. Adding millimeters of thickness provides more internal volume for reinforced hinge mechanisms, larger battery cells, and improved thermal management—all areas where the first generation likely struggled.
A lighter device despite increased thickness would require significant materials innovation. Samsung could achieve this through aluminum alloy substitutions, carbon fiber reinforcements in stress areas, or more efficient component miniaturization. The company's display division has been working on thinner ultra-thin glass (UTG) layers, which could shave grams while maintaining durability.
The 2027 timeline is telling. It gives Samsung's engineers roughly 15 months to solve the problems that plagued the first model—a reasonable development cycle for refining an existing design rather than starting from scratch. It also positions the device to compete with any tri-fold attempts from Chinese manufacturers, who have been more aggressive in experimenting with unconventional form factors.
Market Positioning Questions
The bigger question is who buys a tri-fold phone. At launch, the original model commanded a premium price for a use case that remained unclear. Folding phones have found their audience among users who want tablet functionality in a pocket-sized device. Tri-folds push that concept further, but the additional screen real estate comes with compromises in portability and durability that may only appeal to a narrow segment.
Samsung may be viewing this as a halo product—a technological showcase that demonstrates capability rather than a volume driver. Apple has long used this strategy with products like the Mac Pro, which generates minimal revenue but reinforces the brand's innovation credentials. A refined tri-fold could serve a similar purpose while Samsung collects data on how users actually interact with three-panel devices.
The Slideable Alternative
Perhaps more intriguing is Samsung's reported work on a slideable phone that extends to approximately 7 inches without motorization. The company has demonstrated this concept at both CES 2025 and Mobile World Congress, showing a device where users manually pull the display to expand the screen area.
Slideable designs solve several problems that plague foldables. There's no crease in the display since the screen never actually folds. The mechanism is simpler with fewer moving parts. And the device can maintain a more traditional phone form factor when collapsed, avoiding the thickness issues that make current foldables bulkier than standard smartphones.
The manual operation is a deliberate choice. Motorized sliding mechanisms add weight, consume battery power, and introduce additional failure points. By requiring users to physically extend the display, Samsung keeps the design simpler and more reliable. The trade-off is a less premium feel compared to the automated elegance of something like the old LG Wing.
Technical Hurdles Remain
The leak suggests a retail version would be thinner with better stability than the proof-of-concept units shown at trade shows. Stability is the critical challenge. The extended portion of the display needs structural support to prevent flexing, yet that support mechanism must retract completely when the phone is in compact mode. Samsung's solution likely involves a telescoping rail system similar to what Oppo demonstrated in its X 2021 rollable concept, though that device never reached production.
Display durability presents another concern. The portion of the screen that slides in and out will experience repeated friction and stress. Samsung's UTG technology helps, but the company will need additional protective coatings and possibly a self-healing layer to prevent scratches from accumulating over thousands of extension cycles.
Why Samsung Keeps Experimenting
The smartphone market has largely stagnated in terms of form factor innovation. Aside from foldables, phones in 2026 look remarkably similar to phones from 2020. Samsung's willingness to commercialize experimental designs—even briefly—serves multiple strategic purposes.
First, it keeps the company's engineering teams sharp. Developing complex mechanical systems requires expertise that atrophies without real-world application. By bringing these devices to market, Samsung ensures its engineers are solving actual production challenges rather than theoretical ones.
Second, it maintains pressure on competitors. Chinese manufacturers like Huawei, Xiaomi, and Oppo have been more aggressive with alternative form factors in their home market. Samsung's experiments signal that it won't cede the innovation narrative, even if these devices represent a tiny fraction of sales.
Third, these products generate valuable data. How do users actually interact with expandable screens? What features do they use? Where do devices fail in real-world conditions? This information feeds back into Samsung's mainstream product development, potentially influencing future Galaxy S or Z series designs.
The 2027-2028 Window
Both devices targeting late 2027 or 2028 releases suggests Samsung is taking a measured approach rather than rushing to market. The company learned from the tri-fold's premature launch that being first matters less than being right. A slideable phone that actually works reliably will generate more positive attention than a concept device that gets discontinued after one quarter.
The timing also aligns with expected advances in display technology and battery density. Samsung Display is developing more efficient OLED panels that consume less power while delivering higher brightness. Battery manufacturers are moving toward silicon-anode cells that offer 20-30% more capacity in the same volume. These improvements could make the difference between a slideable phone that barely lasts a day and one that matches conventional smartphone endurance.
Whether either device finds commercial success matters less than what Samsung learns from the attempt. The company's dominance in foldables came from years of iteration and refinement. These experimental form factors represent the early stages of that same process, exploring what comes after the folding phone becomes commonplace.