Quick answer
- Connect the phone and the Samsung TV to the same Wi-Fi.
- Start mirroring from a remote app with mirroring with sound, or from Smart View on a Samsung Galaxy phone.
- For photos and videos, casting gives better quality than mirroring.
- No sound? Check the TV volume, the phone's media volume and disconnect Bluetooth headphones.
To screen mirror Android to a Samsung TV, connect both to the same Wi-Fi network and start mirroring from your phone: with Smart View on Samsung Galaxy phones, or with a remote app that includes mirroring on any Android phone. You don't need a Chromecast or an HDMI cable, and the sound plays through the TV.
Below you will find both methods step by step, when to cast instead of mirror, and how to fix the two classic problems: no sound and lag.
What you need
- A Samsung Smart TV and an Android phone on the same home Wi-Fi.
- Strong Wi-Fi in the room: mirroring sends live video, so signal quality matters.
- No extra hardware: you can mirror your phone to a Samsung TV without Chromecast, cables or adapters.
- For sound through the TV with Samsung TV Remote: Android 10 or newer. On Android 9 it mirrors the picture only.
Mirror vs cast: which one do you need?
The cast vs mirror question comes down to what you want on the TV: your whole phone screen, or just one photo or video.

| Screen mirroring | Casting | |
|---|---|---|
| What the TV shows | Everything on your phone screen | Only the selected photo or video |
| Phone while it runs | Must stay on that screen | Free to use for other things |
| Quality | Depends on Wi-Fi, can lag | Usually sharper and smoother |
| Best for | Apps, slides, websites, games | Photos and home videos |
For photo slideshows and home videos, see how to cast photos and videos to a Samsung TV.
How to screen mirror Android to a Samsung TV
Option 1: with Samsung TV Remote (with sound)
- Connect your phone and TV to the same Wi-Fi and open Samsung TV Remote. Pick your TV if it is the first time.
- Tap the cast icon (Show on TV) at the top right of the remote screen.
- Choose Screen mirroring, then confirm Android's screen-sharing prompt. Allow audio recording if Android asks: the app needs it to send the sound of apps.
- Your phone screen and its sound now play on the TV, about 1–3 seconds behind the phone. The TV volume follows your phone's media volume.
- Stop from the cast icon or from the notification.

This is the same app you use as a remote, so the screen mirroring with sound feature sits next to the volume buttons you need while mirroring. It uses the TV's own media player, so nothing has to be installed on the TV. Android also keeps playing the sound on the phone, so turn the phone's own speaker down if the echo bothers you.
Option 2: with your phone's built-in screen cast
Samsung Galaxy phones have Smart View built in: swipe down twice to open the quick settings, tap Smart View and choose your TV. Allow the connection on the TV the first time. Smart View uses the TV's Screen Mirroring source and usually has less delay, which helps with games.
Other Android phones often show a "Cast" or "Screen cast" button in quick settings, but on many models it only works with Chromecast and Google TV devices, which Samsung TVs are not. If your TV doesn't appear there, use a mirroring app as in option 1.
Samsung TV screen mirroring: no sound?

- Raise the TV volume and make sure the TV is not muted.
- Raise the phone's media volume (not the ringtone volume) while mirroring.
- Disconnect Bluetooth headphones or speakers from the phone: they can take over the audio.
- Check the TV's sound output. If a soundbar is connected, make sure it is on and selected.
- Restart mirroring. Stop it, wait a few seconds and start again.
- Check the Android version. Sending app sound needs Android 10 or newer, and the audio permission must be allowed.
- Protected apps stay silent. Netflix, banking apps and other apps that block screen capture show black and send no sound. Open those apps on the TV instead.
Fix screen mirroring lag on a Samsung TV
Some delay is normal. With a mirroring app such as the Samsung TV Remote app, the TV's player buffers the stream, so the picture runs about 1–3 seconds behind the phone; the TV model decides most of it. That suits photos, slides, videos and browsing, but not fast games. Stuttering or a blurry picture is different: it means the Wi-Fi is struggling.

- Use the 5 GHz band if your router has one, and keep the phone near the TV and router.
- Pause big downloads and streaming on other devices.
- Close heavy apps on the phone and turn off battery saver while mirroring.
- For videos, cast instead of mirror: the TV plays the file directly and it runs smoother.
- For games, use Smart View on a Galaxy phone or a USB-C to HDMI cable: app-based mirroring is too slow for fast action.
If the TV doesn't show up at all, follow our fixes for a Samsung TV not showing up on your phone.
Privacy tips while mirroring
Mirroring shows everything, including notifications. Before you start, turn on Do Not Disturb, close messaging and banking apps, and stop mirroring as soon as you are done. When you only want to show pictures, casting keeps the rest of your phone private. And to use your phone as a Samsung TV remote again, just stop mirroring.
Conclusion
You can screen mirror Android to a Samsung TV in a few taps: same Wi-Fi, start mirroring, done. Galaxy phones have Smart View built in, and on other Android phones a remote app with mirroring does the job, with sound and without a Chromecast. Use mirroring for apps and slides, and casting for photos and videos.
Frequently asked questions
Do I need a Chromecast to mirror to a Samsung TV?
No. Samsung Smart TVs can receive a phone screen over Wi-Fi without extra hardware. Galaxy phones can use Smart View, and other Android phones can use a mirroring app such as the Samsung TV Remote app. A Chromecast is only needed for Google Cast, which Samsung TVs don't support natively.
Can I mirror Netflix to my Samsung TV?
Usually not. Netflix and many other streaming apps block screen mirroring to protect their content, so the TV shows a black screen or no video. Open the Netflix app on the TV instead. A remote app's Netflix shortcut opens it in one tap and the phone keyboard helps you search.
Does mirroring use mobile data?
No. Mirroring sends the picture from your phone to the TV over your home Wi-Fi. It only uses internet data if what you show on the phone is streaming from the internet, such as a website or an online video.
Why is the TV picture a few seconds behind my phone?
App-based mirroring sends your screen as a live video stream that the TV's own media player buffers before it plays. With Samsung TV Remote that adds about 1 to 3 seconds, depending mostly on the TV model. It does not matter for photos, slides or videos, but it makes fast games hard to play.
Can I mirror without Wi-Fi?
Not with a remote app. The phone and the TV must be on the same home Wi-Fi network. Without Wi-Fi, the alternative is a wired connection with a USB-C to HDMI adapter, if your phone supports video output over USB-C.