Wireless DeX Setup: Connect a Galaxy Phone to a TV or Monitor

Wireless DeX requirements at a glance

What you need before connecting

First confirm that Samsung DeX appears in Quick settings or under Settings > Connected devices. A missing DeX option usually means the model or software does not support this mode; installing an APK cannot add the required system feature.

The target screen must support Miracast or a compatible screen-mirroring mode. Samsung says Wireless DeX works with 2018 and later Samsung TVs, Samsung Smart Monitors, and other Miracast receivers, but menus and performance vary by model and region.

Place the Galaxy device near the display, turn off a VPN or mobile hotspot if discovery fails, and disconnect old wireless-display sessions. For long sessions, keep the phone charged because wireless display, apps, and touchpad input can drain the battery quickly.

How to set up Wireless DeX step by step

Swipe down twice to open the full Quick settings panel and tap DeX. If the tile is hidden, open Settings, choose Connected devices, select Samsung DeX, and tap Connect wirelessly.

Wait for the receiver list, select the TV or monitor you recognize, then approve the connection on the large screen if it asks for permission. Read the phone prompt and tap Start now or Start.

The desktop should appear after a short handshake. If the screen only mirrors the phone, reopen the DeX menu and choose the desktop mode rather than Smart View screen mirroring.

Use the phone as a touchpad, keyboard, or app launcher

After DeX starts, tap the touchpad notification or the touchpad icon on the phone. One-finger movement controls the pointer, a single tap clicks, two-finger movement scrolls, and a two-finger tap can act like a secondary click.

For writing and longer sessions, pair a Bluetooth keyboard and mouse directly with the Galaxy device. This reduces friction and keeps the phone free for authentication prompts, calls, and app switching.

Wireless DeX is convenient but compression and radio interference add latency. Use a wired USB-C or HDMI connection when smooth cursor response, high-bitrate video, gaming, color accuracy, or a stable conference-room presentation is more important than cable-free setup.

Wireless DeX versus DeX for PC on Windows 11

Wireless DeX sends the desktop directly to a Miracast receiver. DeX for PC was a Windows or macOS application that showed DeX inside a computer window and used a different connection path. The similar names cause many users to follow the wrong instructions.

Samsung states that DeX for PC is not supported on devices running One UI 7 or later and recommends Link to Windows for PC integration. That change does not remove direct monitor DeX or Wireless DeX from every compatible Galaxy device.

If your goal is to use a television or smart monitor as the workspace, follow this Wireless DeX guide. If your goal is to open phone content inside Windows 11, review the Windows and One UI guides before downloading legacy software.

Fix a TV or monitor that does not appear

Put the receiver into screen-mirroring or wireless-display mode, keep both devices close, and refresh the receiver list. Restart Wi-Fi on the phone, remove old pairings, and reboot both devices before changing advanced settings.

If discovery works but the session drops, reduce congestion by moving away from crowded routers, temporarily disabling VPN or hotspot features, and closing heavy background downloads. Test another Miracast receiver to separate a phone problem from a television problem.

A Chromecast-only target may not appear because Wireless DeX expects Miracast-style wireless display support. When reliability matters, use a video-capable USB-C cable, powered hub, or HDMI adapter and follow the wired setup guide.