The fastest way to screen share on a Samsung TV

Screen sharing on a Samsung TV works through SmartThings, Samsung's built-in wireless casting system, or through AirPlay if you own an Apple device. You don't need any cables or extra apps — the feature is already in your TV. The method depends on what device you're casting from: a phone, tablet, or computer.

The basic process is the same across all methods: turn on your TV, open the app or menu on your source device, select your TV from the list of available devices, and confirm the connection. Most TVs will display a PIN code on screen that you enter on your phone or computer to complete the pairing. After that first time, your devices usually remember each other.

Key Takeaways

  • Samsung TVs use SmartThings for Android phones and tablets, and AirPlay for iPhones and iPads — both are built in and require no additional apps.
  • Your TV and source device must be connected to the same Wi-Fi network before you can screen share.
  • The first time you connect, you'll enter a PIN code displayed on your TV to confirm the pairing.
  • Windows and Mac computers can screen share through SmartThings or third-party apps like Miracast, depending on your TV model and operating system.

Screen sharing from an Android phone or tablet

Open the app or content you want to share on your Android device. Swipe down from the top of the screen twice to open the full Quick Settings menu. Look for a button labeled SmartThings, Wireless Casting, Cast, or Screen Sharing — the exact name varies by phone manufacturer and Android version.

Tap that button and wait a few seconds for your TV to appear in the list. Select your TV's name. Your TV will display a PIN code on screen. Enter that code on your phone within the time limit shown. Once confirmed, your phone's screen will appear on your TV. To stop sharing, tap the casting button again and select "Disconnect."

If your TV doesn't appear in the list, make sure both devices are on the same Wi-Fi network. Restart your TV's Wi-Fi by going to Settings > Network > Wi-Fi, turning it off, waiting 10 seconds, and turning it back on. Then try the casting button again.

Screen sharing from an iPhone or iPad

Open the app or content you want to share. Swipe down from the top-right corner of the screen to open Control Center. Look for AirPlay Mirroring or Screen Mirroring and tap it. Your Samsung TV will appear in the list if it's on the same Wi-Fi network.

Select your TV's name. If your TV asks for a PIN, look at the screen and enter the code on your iPhone or iPad. Your screen will now mirror on the TV. To stop, open Control Center again, tap the AirPlay button, and select "Stop Mirroring."

If your TV doesn't show up, check that both devices are connected to the same Wi-Fi network. Restart your TV's Wi-Fi connection and try again. Some older Samsung TV models may not support AirPlay — if your TV doesn't appear after two attempts, check your TV's model number in the manual or on Samsung's website to confirm AirPlay support.

Screen sharing from a Windows computer

Windows 10 and 11 computers can cast to Samsung TVs using the built-in Cast to Device feature. Open the app or content you want to share. Press the Windows key and type "cast" to open the Cast settings. Select "Cast to a device."

Your TV will appear in the list if it's on the same Wi-Fi network. Click your TV's name. Windows will ask you to confirm the connection — your TV may also display a PIN code that you enter on your computer. Once connected, your screen will appear on the TV.

If your TV doesn't appear, make sure both devices are on the same Wi-Fi network. Some Windows computers may need to install the latest graphics driver to cast properly — check Windows Update in Settings > Update & Security. If casting still doesn't work, your TV may support Miracast instead, which you can access through the same Cast menu.

Screen sharing from a Mac computer

Mac computers can screen share to Samsung TVs through AirPlay if your TV supports it. Click the Control Center icon in the top-right corner of your screen. Select Screen Mirroring and look for your TV's name in the list.

Click your TV. If prompted, enter the PIN code shown on your TV screen. Your Mac's display will now appear on the TV. To stop mirroring, open Control Center again, click Screen Mirroring, and select "Turn Off Mirroring."

If your TV doesn't appear, confirm both devices are on the same Wi-Fi network. Restart your TV's Wi-Fi and try again. Older Samsung TV models may not support AirPlay — check your TV's manual or Samsung's support site to verify compatibility before troubleshooting further.

Troubleshooting when your TV doesn't appear

The most common reason your TV won't show up is that your source device and TV are on different Wi-Fi networks. Check your phone or computer's Wi-Fi settings and make sure it's connected to the same network as your TV. If you have a 2.4 GHz and 5 GHz network with the same name, try connecting your phone to the 2.4 GHz band — some older Samsung TVs only support that frequency.

If both devices are on the same network, restart your TV completely by unplugging it for 30 seconds, then plugging it back in. While it boots up, restart your phone or computer as well. Once both devices are fully restarted, try the casting process again.

If your TV still doesn't appear, check that screen sharing is enabled in your TV's settings. Go to Settings > General > External Device Manager and make sure Wireless Casting or SmartThings is turned on. The exact menu name varies by TV model and year — your TV's manual will show the correct path for your specific model.

What to do if the connection keeps dropping

A connection that drops repeatedly usually means your Wi-Fi signal is weak or unstable. Move your TV and source device closer to your router, or move the router away from walls and metal objects that block the signal. If you're far from the router, consider moving it to a more central location in your home.

Check whether other devices on your network are using a lot of bandwidth — streaming video, large downloads, or online gaming can interfere with screen sharing. If possible, pause those activities while you're casting. You can also try switching your TV to the 2.4 GHz Wi-Fi band if it's currently on 5 GHz, as 2.4 GHz sometimes has better range, though slower speed.

If the connection is still unstable, restart your router by unplugging it for 30 seconds. While it restarts, also restart your TV and source device. Once everything is back on, reconnect and test the screen share again.

Frequently Asked Questions

Do I need a special app to screen share on a Samsung TV?

No. SmartThings and AirPlay are built into Samsung TVs and phones — you don't need to read anything. Just use the casting button in your device's Quick Settings or Control Center. Some third-party apps like Miracast may require installation on Windows computers, but most modern Windows versions include casting built in.

Can I screen share if my TV and phone are on different Wi-Fi networks?

No. Both devices must be on the same Wi-Fi network to communicate. If you're trying to cast from a phone on a guest network, connect it to your main home network instead. Some routers allow you to see both networks — make sure you're selecting the same one your TV is using.

What if my Samsung TV is too old to support screen sharing?

Very old Samsung TVs (before 2015) may not have built-in casting. Check your TV's model number in the manual or on the back of the unit, then search Samsung's support site for your model. If your TV doesn't support it, you can buy a separate casting device like a Chromecast or Roku stick and plug it into an HDMI port instead.

Can I screen share while watching something else on my TV?

No. When you start screen sharing, it takes over the entire TV display. Whatever was on the TV before will pause or stop. Once you disconnect the screen share, your TV will return to what it was showing before.

Is screen sharing find, or can anyone on my Wi-Fi cast to my TV?

By default, anyone on your Wi-Fi network can see your TV in the casting list. However, they need to enter the PIN code that appears on your TV screen to actually connect — so a random person can't cast without your knowledge. If you want to restrict casting further, check your TV's settings for a "Wireless Casting" or "SmartThings" permission menu where you can require a PIN for all connections.