A look at Samsung's updated DeX feature, which offers a desktop-like computing mode for its smartphones and has been expanded to work with Windows and macOS PCs
Dan Seifert / The Verge :
Context & Ripple Effects
DeX has been shedding hardware since launch: what began in 2017 as a dedicated dock for the Galaxy S8 was reduced to a USB-C-to-HDMI adapter for the Note9, and today's update removes even that dependency by letting a Galaxy phone drive a desktop-like mode from an existing Windows or macOS PC. The lineage runs back further — Microsoft tried the same phone-becomes-a-PC pitch with its Display Dock for Windows 10 mobile in 2015.
The significance is distribution: DeX no longer requires Samsung-branded accessories or a spare monitor, so the addressable base is every Galaxy owner who already owns a computer. The software itself remains the open question — a later Galaxy Tab S7 review found DeX still feeling unfinished for productivity work.
First-order effects
- Galaxy owners with Windows or macOS machines can now run DeX without buying a dock or adapter, and the feature reaches more devices quickly — the S10 picked up DeX for PC through a routine software update rather than new hardware.
Second-order effects
- Samsung is effectively competing with the PC industry using its customers' own computers: a Galaxy phone plugged into a MacBook or Windows laptop substitutes for a desktop session, reviving the phone-as-PC thesis Microsoft first pitched with the Display Dock.
Third-order effects
- If the pattern holds, the dock disappears entirely and the battleground shifts to the desktop-mode software layer — where reviews show DeX still lags — deciding whether smartphones and tablets can genuinely replace entry-level PCs.
The trend: Phone-to-desktop convergence is moving from proprietary docks toward cross-platform software that turns any existing computer into a terminal for a handset.