LG Rollable Smartphone Teardown Reveals Innovative Internals

A teardown video has revealed the internal mechanisms of the LG Rollable smartphone, a device that was nearly launched in 2021 before LG exited the smartphone market. The footage provides a detailed look at the sliding technology that would have allowed the screen to expand and contract, offering a glimpse into a hardware direction that differed significantly from the folding screens currently dominating the market.

The device represents a point of innovation that predates current foldable trends. According to reporting from Notebookcheck, the LG Rollable was developed to a stage where it was almost ready for release five years ago, yet it remained unreleased due to the company’s strategic decision to stop producing mobile phones.

Technical Innovation and Design

The teardown highlights the innovative internals required to facilitate a rollable display. Unlike foldable phones, which rely on a hinge and a screen that creases at a specific fold point, the LG Rollable utilized a sliding mechanism to extend the display area.

This approach sought to solve common issues associated with foldable displays, such as the visible crease and the mechanical stress placed on a single folding point. By rolling the screen, the device could potentially offer a larger screen real estate without the bulk of a traditional foldable when collapsed.

Competitive Context

The capabilities of the LG Rollable are being compared to the current state of the industry. Analysis of the teardown suggests that the technology LG had developed by 2021 was more innovative than many of the developments seen in the foldable segment in recent years.

Some assessments indicate that even the foldable devices released by Samsung in 2026 pale in comparison to the sliding technology LG had nearly brought to market years prior. This suggests that the industry’s reliance on folding hinges may have been a more conservative path than the rollable alternative LG pursued.

The Impact of LG’s Market Exit

The emergence of this teardown underscores the potential shift in the smartphone landscape had LG remained in the business. The company’s exit prevented the first commercial rollable smartphone from reaching consumers as early as 2021.

The rollable form factor would have introduced a new category of device, moving beyond the binary choice of a standard slab phone or a folding tablet-hybrid. Instead, it offered a dynamic screen size that could adapt to the user’s needs without the structural compromises of a hinge.

The recent visibility of these internals, including a video published on April 3, 2026, serves as a technical retrospective on a lost trajectory for mobile hardware innovation.