Samsung DeX has long promised to turn a Galaxy phone into a desktop computer. Plug in a monitor, keyboard, and mouse, and the handset supposedly becomes a full workstation. On paper, that pitch remains compelling in 2026. Modern smartphones are powerful, and the line between mobile and desktop silicon keeps blurring. So why should a phone not double as a laptop? The appeal is obvious: one device, endless flexibility, and no need to carry a separate computer. But what happens when the initial novelty fades and real work begins? A detailed experiment with a Samsung Galaxy S24 Ultra suggests that DeX is still more of a desktop experience than a desktop replacement.

The user in question switched from an iPhone to a Samsung phone and wanted to work entirely from the handset. The experiment succeeded in a literal sense: the resulting article was written on the phone. Yet the constant hurdles wore the user down, and the setup was eventually abandoned for a MacBook. The problems were not one dramatic failure but a collection of small frustrations that added up.

📱 The App Problem: Touch-First Software on a Desktop

The biggest issue was apps. Most work happens in a browser, so Chrome and Samsung Internet were the first stops. Both felt incomplete compared with desktop browsers because they do not support extensions. Firefox was tried instead, since it can run extensions, but it became obvious that it was not designed for a keyboard and mouse.

That points to a larger problem: many Android apps are simply scaled-up tablet versions. They remain built around touch rather than desktop input. Right-click context menus are often missing. In a messaging app, replying to a message does not involve a simple right-click. The user has to hold down the click and then move to a reply button tucked away in a corner. It is a small example, but once Android apps are used with a keyboard and mouse, these annoyances appear constantly.

Friction Area	What Went Wrong
Browsers	Chrome and Samsung Internet lack extensions; Firefox is not optimized for keyboard and mouse
App design	Many apps are scaled-up tablet versions with touch-first controls
Context menus	Right-click support is inconsistent or absent
Messaging	Replying often requires long-press gestures instead of a context menu

Android tablet apps were not great to begin with, and while there have been attempts to improve them, the results remain disappointing. The same touch-first logic undermines DeX productivity.

🖥️ DeX Itself: Wasted Space and Scaling Woes

There are also issues inherent to DeX. Every app has a massive title bar that serves no real purpose beyond holding minimize, maximize, and close buttons. On a 27-inch monitor, that felt like a waste of space. It became worse when multiple apps were resized into smaller windows across the screen. That empty strip of pixels ate into usable space for no reason.

Resolution and scaling were another pain point. Out of the box, the user was limited to 1080p until installing the MultiStar Good Lock module to unlock higher resolutions. That worked, but scaling was still off. Everything looked far too large, and there was no option to adjust it to a comfortable level.

DeX does not support multiple monitors, and there is no way to create virtual desktops either. The result is that everything has to be crammed onto a single screen, which makes working across multiple apps frustrating and messy.

🔥 Performance, Thermals, and Artificial Limits

Raw performance is not the only question. Even on a Samsung Galaxy S24 Ultra with 12GB of RAM, DeX seemed unusually aggressive about killing apps in the background. With more than five apps open, apps often quit on their own. Receiving a call would sometimes force another app to close, and if work had not been saved, it was lost.

Thermals were another problem. Even during moderate workloads, the phone heated up noticeably. The user was sharing a screen on Google Meet with two other apps running, which were not particularly demanding. Yet the phone had to throttle down to the point that it stopped charging, and even dragging windows around became a laggy mess.

This improved noticeably when switching from 1440p back to 1080p. But by that point, the user was not willing to accept more compromises, since the previous setup had been working perfectly fine.

💻 The Portability and Power Balance

There were times when the user craved a proper laptop, especially when out and needing a balance between portability and actual power. A MacBook hits that sweet spot, offering enough performance without being cumbersome. DeX simply could not match that balance.

Accessories like the NexDock, which acts as a laptop shell for a phone, exist. But it was still only available for preorder at the time of the experiment and remains one of very few options. Even with such an accessory, it does not solve all the problems mentioned earlier.

Maybe Samsung realizes this too. That is why DeX stands for desktop experience and not desktop replacement. The phrasing is telling: it promises a taste of desktop computing, not a full substitute.

🤔 Should Anyone Still Try DeX in 2026?

Although the experience was not strong enough to make the user switch completely, that does not mean DeX is useless for everyone. Workflows vary enormously. If someone mainly revolves around a single app, working entirely from a phone could actually be more productive. For students, writers, or field workers who need a lightweight setup, DeX may still offer real value. The key question is whether the workflow depends on desktop-class apps, extensions, multitasking, and reliable thermals. If it does, DeX will likely frustrate. If it does not, the phone-as-desktop idea can still shine.

The recommendation remains to try DeX personally. It has potential as a solid desktop replacement for some people. But in 2026, the dream of plugging a phone into a monitor and leaving the laptop behind still comes with too many caveats for most demanding users. DeX is a fascinating experiment, a useful secondary mode, and occasionally a genuine productivity tool. As a full-time laptop replacement, however, it remains a compromise too far.

Recent analysis comes from GamesIndustry.biz, and it helps frame why Samsung DeX still feels like a compromise in 2026: even when smartphone hardware is strong, productivity hinges on mature desktop-grade software ecosystems, reliable multitasking behavior, and peripheral-ready UX conventions. From that lens, the DeX pain points in the experiment—extension-poor browsers, touch-first app design, and workflow friction from scaling and window management—highlight how “desktop experience” modes can lag behind what professionals expect from established laptop platforms.