Samsung One UI 9.5 Leak Reveals Native App Mirroring for Galaxy Books
Leaked internal builds suggest Samsung is developing a first-party tool to control Galaxy phones from laptops, mirroring a key Apple ecosystem feature.
Samsung is preparing to tighten the integration between its mobile and desktop hardware with a new native mirroring tool. Leaked internal data suggests the upcoming One UI 9.5 update will introduce "App Mirroring," allowing users to operate their Galaxy phones directly from a linked Galaxy Book laptop.
The discovery stems from screenshots posted to X by leaker Fahad Ali Javed. According to reports from Mashable and Android Authority, the feature was spotted in an internal Samsung test build identified as CZH9. This functionality would enable Galaxy phone users to not only receive notifications on their laptops but to fully control their mobile devices through the Galaxy Book interface.
The Ecosystem Shift
For years, Samsung has relied heavily on "Link to Windows," a collaboration with Microsoft that provides similar cross-device capabilities via the Phone Link app. While effective, that solution relies on a third-party bridge to connect Android hardware to a Windows environment. The leaked CZH9 build indicates a move toward a first-party, native solution designed specifically for the Galaxy ecosystem.
This development is widely viewed as a direct response to Apple's iPhone Mirroring for Mac. By creating a seamless, proprietary link between the phone and the laptop, Samsung aims to replicate the "walled garden" experience where hardware and software are tuned for each other without requiring external middleware.
Why It Matters
If implemented, native app mirroring would significantly reduce friction for power users who operate within the Samsung ecosystem. By removing the dependency on third-party software for core device interaction, Samsung can offer a more stable, lower-latency experience that feels like a single unified system rather than two connected devices.
Furthermore, this move strengthens the value proposition of buying into the full Galaxy suite. When a Galaxy Book provides a superior control experience for a Galaxy phone compared to a standard Windows laptop, it creates a stronger incentive for consumers to remain loyal to Samsung hardware across all categories.
What's Next
Samsung has not officially confirmed the existence of App Mirroring or the release timeline for One UI 9.5. While the build ID CZH9 provides a concrete trail, it remains unclear if the feature will be available to all Galaxy devices or restricted to the latest flagship series. Industry observers will be watching for official beta releases to see if the feature survives the transition from internal testing to public deployment.