Smart View on Galaxy S9: Screen Mirroring Guide

Updated 7 November 2026 · Standard formula, shown below

Smart View on the Galaxy S9 and S9+ lets you mirror your phone’s screen to a compatible TV or monitor wirelessly, showing everything from photos and videos to apps and games on a larger display. You simply swipe down twice, tap the Smart View icon, and pick your TV from the list. This guide explains how to use it, what to do when it fails, and how it compares to other connection methods.

What Is Smart View?

Smart View is Samsung’s built-in screen mirroring feature, present on the Galaxy S9 and S9+ since they run Android 8.0 (Oreo) and newer. It uses Wi-Fi Direct and Miracast technology to send your phone’s display to a TV without needing a cable or an internet connection. Unlike casting from apps like YouTube or Netflix, which send a link to the TV, Smart View duplicates your entire screen—including the home screen, settings menus, and any app you open.

It works with most smart TVs from Samsung, LG, Sony, and others that support Miracast, as well as with streaming devices like Roku, Amazon Fire TV, and Chromecast (via the Google Home app in some cases). The feature is often labeled differently on TVs—Samsung calls it Screen Mirroring, LG calls it Screen Share, and Roku calls it Display Mirroring—but the underlying protocol is the same.

How to Use Smart View on Galaxy S9 and S9+

Before you start, make sure your TV is turned on and set to the correct input source. Then follow these steps:

Swipe down from the top of the screen to open the notification panel.
Swipe down again to see the quick settings toggles.
Tap the Smart View icon (it looks like a rectangle with a Wi-Fi-like signal in the corner). If you don’t see it, swipe left on the toggles or tap the pencil icon to edit and add it.
Your phone will scan for nearby devices. Wait a few seconds.
Tap the name of your TV or streaming device from the list.
If prompted, accept the connection on the TV screen. The phone will connect and start mirroring.

To stop mirroring, swipe down and tap Smart View again, then tap the device name and choose Disconnect. You can also turn off the TV or just leave the range of the Wi-Fi Direct signal.

What You Can and Can’t Mirror

Smart View mirrors everything on your phone’s screen, so you can show:

Photos and videos stored on your device
Websites and documents
Games and apps (though performance may vary)
Your phone’s home screen and settings

However, some apps intentionally block mirroring due to copyright protections. Netflix, Disney+, and similar streaming services often display a black screen or an error message when you try to mirror them via Smart View. This is not a bug—it’s a digital rights management (DRM) restriction. For those apps, use their built-in cast button instead, which sends the video directly to the TV without mirroring the phone’s screen.

Common Problems and Fixes

If Smart View isn’t working, try these troubleshooting steps in order:

Check Wi-Fi and Bluetooth: Smart View uses Wi-Fi Direct, but it also requires Bluetooth to be on for the initial handshake. Turn both on in your phone’s settings.
Restart both devices: Turn off your phone and TV, wait 30 seconds, then turn them back on. This clears temporary glitches.
Move closer: Wi-Fi Direct works best within 10–15 feet. Walls and other electronics can interfere.
Update software: Make sure your phone is running the latest Android version and your TV has its latest firmware. Go to Settings > Software Update on the phone, and check the TV’s own settings menu.
Disable VPN or battery saver: A VPN can block local network discovery, and battery saver may limit background Wi-Fi activity. Turn both off temporarily.
Forget the TV and reconnect: On your phone, go to Settings > Connections > Wi-Fi > Advanced > Wi-Fi Direct, find the TV, and tap Forget. Then try Smart View again.

If the TV doesn’t appear at all, confirm that your TV supports Miracast. Many older TVs don’t, and some budget models omit it. In that case, you’ll need a separate streaming device like a Roku or Amazon Fire TV Stick.

Smart View vs. Other Connection Methods

Smart View is not the only way to get your Galaxy S9’s screen onto a larger display. Here’s how it compares:

Smart View (Wi-Fi Direct/Miracast): No internet needed, works with many TVs, but adds noticeable lag (100–300 ms), making it poor for fast-paced gaming. It also drains the battery quickly.
Chromecast (Google Home app): Requires a Chromecast device and Wi-Fi network. It’s better for streaming apps because the phone sends a link and the TV does the work, so the phone can be used for other tasks. But it doesn’t mirror the full screen unless you use the “Cast screen” option, which has similar lag.
HDMI cable (via adapter): The Galaxy S9 supports DisplayPort over USB-C. Using a USB-C to HDMI adapter gives a wired, zero-lag connection. It’s ideal for presentations or gaming, but you’re tethered to the TV and need a separate adapter.
Samsung DeX: This turns your phone into a desktop-like interface on a monitor or TV. It requires a DeX Station, DeX Pad, or a simple HDMI adapter. It’s not a mirror—it’s a separate mode—but it’s great for productivity.

For watching videos, Chromecast or the app’s built-in cast is usually smoother. For showing your phone’s screen in real time, Smart View is the simplest no-cable option.

Tips for a Better Mirroring Experience

To get the most out of Smart View on your Galaxy S9:

Keep your phone plugged into a charger while mirroring, as the feature drains the battery noticeably.
Close background apps to reduce lag and overheating.
Set your TV to “Game Mode” if it has one—this reduces input lag.
If you’re mirroring a presentation, switch your phone to landscape orientation before connecting.
Remember that Smart View mirrors your notifications, so enable “Do Not Disturb” to avoid showing private messages on the big screen.

Frequently Asked Questions

Why is my Smart View not finding my TV?

Your TV might not support Miracast, or it might be on a different Wi-Fi network. Smart View uses Wi-Fi Direct, so both devices don’t need to be on the same router, but they do need to be within range of each other. Also, check that your TV’s screen mirroring setting is enabled—on many Samsung TVs, it’s under Settings > General > External Device Manager > Input Device Manager > Device Connect Manager.

Can I use Smart View without Wi-Fi?

Yes. Smart View uses Wi-Fi Direct, which creates a direct connection between the phone and TV, not requiring an internet connection or a router. However, both devices must have Wi-Fi and Bluetooth turned on.

Why does Netflix show a black screen when I mirror it?

Netflix and other streaming apps use DRM protections that block screen mirroring. Instead of using Smart View, open the Netflix app on your phone, tap the cast icon in the top-right corner, and select your TV. The video will play on the TV while your phone acts as a remote.

Does Smart View work with iPhone?

No. Smart View is a Samsung-exclusive feature. iPhones use AirPlay for screen mirroring. However, some smart TVs support both AirPlay and Miracast, so you could use the TV’s built-in AirPlay feature, but not the Smart View app itself.

How do I update Smart View?

Smart View is part of the Android system and Samsung’s One UI, so it updates automatically with system updates. To check for updates, go to Settings > Software Update > Download and Install. You can also update the Smart View app separately via the Galaxy Store if a standalone update is available.

Can I mirror my Galaxy S9 to a non-Samsung TV?

Yes, as long as the TV supports Miracast. Most modern smart TVs from LG, Sony, Vizio, and others do. If your TV doesn’t, you can use a streaming device like Roku or Fire TV Stick, which support Miracast as well.

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