The fastest way: HDMI cable or USB-C adapter
The simplest connection is a wired one. If your Samsung Galaxy tablet has a USB-C port (most modern models do), you can plug a USB-C to HDMI adapter directly into the tablet, then run an HDMI cable from the adapter to your TV. The picture appears on your TV within seconds, and there is no setup or pairing to do.
Older Samsung tablets with Micro USB ports need a Micro USB to HDMI adapter instead. Both adapters cost between $15 and $40 and work when ready—no apps, no passwords, no waiting for a connection to establish. Your TV must have an available HDMI port, and you may need to switch the TV input to that HDMI channel using the remote.
The wired method is also the most reliable for video calls, gaming, or watching video without lag. If your tablet supports DeX mode (Samsung's desktop interface, available on most Galaxy Tab S models and newer), the TV will show a full desktop layout with a taskbar and resizable windows rather than just a mirrored tablet screen.
Key Takeaways
- A USB-C to HDMI adapter plugged directly into your tablet is the fastest and most reliable connection method, with no setup required.
- Wireless casting through Miracast or Samsung SmartThings works without cables but requires both devices to be on the same Wi-Fi network and may have slight video delay.
- Your TV must support the wireless standard you choose—most modern TVs support Miracast, but older models may not.
- If your tablet supports DeX mode, a wired connection will show a full desktop interface on your TV instead of just a mirrored screen.
- Bluetooth connects audio only, not video, and is useful for pairing wireless speakers or soundbars to play tablet audio through better speakers.
Wireless casting with Miracast
If you do not want to use cables, you can cast your tablet screen wirelessly using Miracast, a standard that most modern Samsung tablets and TVs support. Both devices must be connected to the same Wi-Fi network. On your tablet, open Settings, go to Display, and look for Screen Mirroring or Wireless Display. Tap it, and your tablet will search for nearby devices.
When your TV appears in the list, tap it to connect. The first time you pair them, your TV may ask you to confirm the connection. After that, the pairing is remembered, and future connections are faster. The tablet screen will appear on your TV within a few seconds, though there is usually a slight delay (one to two seconds) compared to a wired connection.
Miracast works for video, photos, and apps, but the delay makes it less suitable for gaming or video calls where timing matters. If your TV is older and does not support Miracast, check your TV manual or settings to see if it supports another wireless standard like Chromecast or AirPlay—though AirPlay is less common on Android tablets.
Samsung SmartThings for newer tablets and TVs
If both your tablet and TV are Samsung devices made in the last few years, you can use the SmartThings app to cast between them. SmartThings is Samsung's ecosystem app, and it often offers a more stable connection than generic Miracast. Open SmartThings on your tablet, tap the plus icon to add a device, select your TV from the list, and follow the prompts to pair them.
Once paired, you can cast your screen by opening SmartThings again, selecting your TV, and tapping the screen mirroring option. SmartThings also lets you control your TV volume and input from the tablet, which can be convenient. The connection quality is usually similar to Miracast, with the same one- to two-second delay.
SmartThings requires both devices to be on the same Wi-Fi network and to have the SmartThings app installed. If you have not used SmartThings before, you may need to create a Samsung account, though you can skip this step if you only want to cast to a TV on your local network.
Connecting audio only with Bluetooth
If you want to play tablet audio through your TV's speakers or through a soundbar connected to your TV, you can pair the tablet to the TV using Bluetooth. Open Settings on your tablet, go to Bluetooth, and turn it on. Your tablet will search for nearby Bluetooth devices. When your TV appears, tap it to pair.
Bluetooth carries audio only, not video, so your tablet screen will not appear on the TV. This method is useful if you want to play music, podcasts, or video audio through better speakers than your tablet has, but you are watching the video on the tablet itself. Once paired, the connection is automatic the next time both devices are in range and Bluetooth is turned on.
Some TVs do not broadcast themselves as Bluetooth speakers—check your TV manual to see if it supports Bluetooth audio output. If it does not, you can pair a Bluetooth soundbar or speaker to your tablet instead and place it near your TV.
What to do if your TV does not recognize the connection
If you are using a wired adapter and the TV shows no picture, first check that you have selected the correct HDMI input on the TV. Use your TV remote to cycle through inputs until you see the tablet screen. If the TV still shows nothing, try unplugging the adapter and plugging it back in, or restarting your tablet.
For wireless casting, make sure both devices are on the same Wi-Fi network. If they are on different networks (for example, if your TV is on a guest network), they cannot see each other. Restart both devices and try again. If your TV is very old, it may not support Miracast at all—check the TV manual or settings to see what wireless standards it supports.
If you are using a USB-C adapter and the tablet gets very hot, the adapter may be drawing too much power. Unplug it and let the tablet cool for a few minutes. If the problem continues, the adapter may be faulty and should be replaced.
Choosing between wired and wireless
Use a wired connection if you are watching video, playing games, or making video calls—the picture is sharper, there is no delay, and the connection never drops. Wired is also better if your Wi-Fi is slow or crowded. The trade-off is that you have a cable attached to your tablet.
Use wireless casting if you want to move the tablet around the room, show photos or presentations, or cast occasionally without setting up cables. Wireless is less reliable if your Wi-Fi is weak or if many devices are connected to the network. If you cast often, a wired connection will be less frustrating in the long run.
If your tablet supports DeX mode and you want a desktop experience on your TV, use a wired connection—DeX works best with a stable, low-latency link. Wireless casting will show a mirrored tablet screen, not the full DeX interface.
Frequently Asked Questions
Do I need to buy an expensive adapter?
No. A basic USB-C to HDMI adapter costs $15 to $25 and works just as well as a $50 brand-name version. Look for one with good reviews on Amazon or at an electronics store. Make sure it is USB-C to HDMI, not USB-C to DisplayPort, unless your TV has a DisplayPort input (most do not).
Can I charge my tablet while it is connected to the TV?
With a wired HDMI adapter, not usually—the adapter uses the USB-C port, so you cannot plug in a charger at the same time. Some tablets support USB-C hubs that have both HDMI and a charging port, but these are more expensive. With wireless casting, you can charge the tablet normally while it casts.
Why is the picture blurry or pixelated on my TV?
If you are using a wired connection, try a different HDMI cable—a damaged or low-quality cable can cause picture problems. If you are casting wirelessly, move the tablet closer to the router or TV, or reduce the number of other devices on your Wi-Fi network. Wireless casting uses more bandwidth than you might expect.
Can I use my tablet as a remote control for the TV?
Yes, if your TV is a Samsung model and you have the SmartThings app installed. SmartThings includes a remote control interface that lets you change channels, adjust volume, and switch inputs from your tablet. Some third-party remote apps also work with certain TV brands, but SmartThings is the most reliable option for Samsung devices.
What if my tablet screen goes black after I connect it to the TV?
This usually means the tablet is in a power-saving mode or the screen has locked. Press the power button on the tablet to wake it up. If you are using wireless casting, the connection may have dropped—disconnect and reconnect. If you are using a wired adapter, unplug it and plug it back in.