Hands-on with Samsung's Dex, a dock for Galaxy S8 that lets users work on a desktop display, running a tweaked version of Android 7.0 with multi-window support
The road to the perfect phone-desktop hybrid is littered with the carcasses of ambitious failures — just look at Microsoft's Lumia 950 and Motorola's Atrix.
Context & Ripple Effects
The phone-becomes-your-PC idea has a body count: Motorola's Atrix tried it in 2011, and Microsoft's Windows 10 Display Dock launched just eighteen months ago with universal apps as its selling point — both stalled. Samsung's DeX is the third major attempt, betting that a tweaked Android 7.0 with real multi-window support solves what killed the predecessors.
What separates this from the Lumia 950 era is iteration cadence: the related coverage shows Samsung treating DeX as a platform, not a launch-day gimmick — later shipping a cheaper USB-C-to-HDMI adapter for the Note9 and expanding DeX to Windows and macOS hosts by 2019.
First-order effects
- Galaxy S8 buyers get a desktop mode no rival Android flagship offers, giving Samsung a hardware-plus-accessory differentiator at the exact moment flagship phones are otherwise converging on the same glass slab.
- DeX only works if apps behave on a big screen, so developers targeting Samsung now face pressure to make their Android apps multi-window-ready rather than phone-shaped.
Second-order effects
- Microsoft's Display Dock strategy is effectively answered: if DeX gains traction, Redmond's continuum pitch loses its uniqueness and Windows mobile's last plausible reason to exist narrows further.
- Dock-and-cable accessories become a competitive surface — Samsung's own move from dedicated dock to plain adapter within two years shows the margin sits in the software experience, not the puck.
Third-order effects
- If the pattern holds across the Note9, Note10, and Tab S7 coverage — where reviewers still call DeX unfinished — the structural bet is that the smartphone absorbs the entry-level PC, leaving traditional desktops to creators and enterprises.
- Persistent criticism that DeX 'still feels unfinished' even three years in suggests the binding constraint is app ecosystem behavior, not silicon — meaning whoever solves desktop-class Android apps owns the category.
The trend: Flagship smartphones are being repositioned as the primary personal computer, with Samsung iterating fastest on the dock-to-desktop model that Motorola and Microsoft abandoned.