Why Samsung DeX is still tech’s most underrated power feature

Samsung DeX is a desktop mode feature found on flagship Samsung smartphones, which transforms the pocket-sized device into a full desktop PC. This feature is considered the best among Android manufacturers and is available on every flagship Galaxy S Series device from S21 to the latest S26 generation. DeX excels in the modern fast-paced work environment where remaining mobile without sacrificing efficiency is crucial.

Connecting to an external monitor is effortless, but the true strength of the experience lies in its software. Introduced in 2017, DeX has been continuously refined by Samsung to perfect the user experience. Today, it supports 1440p resolution, and with a tweak inside Samsung's Good Lock app, it can go up to true 4K output. DeX functions as an independent desktop interface alongside the core Android OS, allowing the phone to act as a secondary display.

This enables smooth mouse cursor and keyboard input movement between both screens. DeX also supports familiar desktop shortcuts like window snapping and customizable trackpad gestures, which are essential for multitasking on a desktop operating system. Unlike iPadOS, DeX introduced proper desktop-style window management long ago.

Running DeX while the phone's display remains off significantly extends battery life and prevents screen burn-in. Ultimately, Samsung DeX's power to carry a fully functional desktop PC right in your pocket makes it the ultimate unique selling point for mobile productivity.