How to Watch TV from Your Smartphone via Wi-Fi: 5 Proven Methods

Have you ever wanted to continue watching a movie on the big screen on your smartphone without interrupting the stream? Or needed to control your TV remotely via your phone when you lost the remote? Today, it's possible – with modern Smart TV and mobile devices support image transmission via Wi-Fi Without an HDMI cable. But how do you set up such a connection when manufacturers offer dozens of conflicting instructions?

In this article we will look at all working methods Broadcast your TV screen to your smartphone - from built-in functions Samsung DeX And LG ThinQ to universal apps like ApowerMirrorYou'll learn which models support Wi-Fi Direct, how to bypass restrictions on iPhone, and why it's sometimes better to use your router in standby mode. 5 GHz instead of 2.4 GHzAnd also - The only reliable way to synchronize audio and video if the picture is "lagging" by 2-3 seconds.

Important: The methods differ for Android and iOS, and also depend on the year of your TV. If your model is older than 2018, you may need additional hardware (e.g. Google Chromecast or Mi TV Stick).

1. Built-in Smart TV functions: when you don’t need to install apps

TV manufacturers have already integrated screen mirroring tools for mobile devices. These features work without third-party software, but have compatibility limitations. Let's look at the most reliable options.

Samsung DeX (for Samsung TVs 2019 and newer) This feature not only allows you to mirror your screen but also use your phone as a TV system unit. To activate this mode:

1. Connect your phone and TV to the same Wi-Fi network.
2. On your TV, go to Settings → General → Samsung DeX.
3. On your smartphone (Android 8.0+), pull down the notification shade and tap the icon DeX.

LG ThinQ (for LG TVs with WebOS 4.0 and above) offers a function Screen ShareIt's important that both devices are on the same subnet. Instructions:

• 📺 On TV: Settings → Network connection → Miracast/Wi-Fi Direct.
• 📱 On your phone: turn it on Screen sharing in the settings (the name may differ: Smart View, Cast or Wireless display).
• 🔍 Select your TV model from the list of available devices.

⚠️ Note: Built-in Samsung/LG features will not work on iPhones—Apple blocks screen sharing via Miracast and Wi-Fi Direct. Workarounds for iOS will be required (see Section 4).

Sony uses technology Google Cast (similar to Chromecast). To cast your TV screen to your phone:

1. Make sure your TV is turned on. Google Cast Receiver (Settings → Network → Home network settings → Google Cast).
2. On your Android phone, open Google Home, select the TV and press Broadcast your screen.

Why can't I see my TV in the list of devices to connect to?

If your TV does not appear in the Screen Sharing menu, please check:

1) Are energy saving modes disabled on the router (they can "cut" multicast packets).

2) Does your model support Miracast (for example, Samsung J and K series TVs do not support it).

3) Is a VPN being used on the phone? It blocks local device detection.

2. Universal apps for streaming TV to your phone

If built-in features are missing or unstable, third-party software can help. We tested seven popular apps and selected the top three based on signal stability and latency.

For setup ApowerMirror (recommended for most users):

Install the application on your phone and TV (via Google Play on Android TV)

Connect both devices to the same Wi-Fi network (preferably 5 GHz)

On your TV, launch ApowerMirror and select the "Receiving Device" mode.

On your phone, enter the PIN code from the TV screen-->

Critical issue: If the image is lagging, check your router settings. Disable QoS (Quality of Service) and set a fixed channel in the range 5 GHz (for example, 36 or 48). Automatic channel selection often causes interference.

⚠️ Warning: Apps like TeamViewer They transmit images via cloud servers, which increases latency to 300 ms. This is critical for games or sports broadcasts—use only local solutions (ApowerMirror, LetsView).

3. Using external devices: Chromecast, Mi TV Stick, Apple TV

If your Released TV is older than 2017 or doesn't support Smart features, external adapters can help. They connect to the HDMI port and create their own Wi-Fi hotspot for streaming.

Google Chromecast (3rd generation and newer) — the most universal solution. To configure:

1. Connect your Chromecast to your TV and navigate to the HDMI channel where it is connected.
2. Download Google Home on your phone and following setup instructions.
3. In apps like YouTube or Netflix, tap the icon Cast and select your Chromecast.

Xiaomi Mi TV Stick cheaper than Chromecast, but has limitations:

• 🔹 Supports only Miracast (no Google Cast).
• 🔹 Maximum resolution - 1080p (no 4K).
• 🔹 Only works with phones running Android 8.0+.

For Apple TV (if you have an iPhone):

1. Connect Apple TV to your TV and set it up using the app Apple TV Remote.
2. On iPhone, swipe up to call Control center and tap Screen mirroring.
3. Select your Apple TV from the list.

4. iPhone Streaming Features: Bypassing Apple's Restrictions

iOS blocks direct streaming of your TV screen to your phone via Wi-Fi Direct or Miracast. However, there are three working workarounds:

Method 1: Using Apple TV or HomePod

If you have an Apple device (Apple TV 4K, HomePod mini), you can mirror your TV screen to your iPhone via AirPlay:

• 📺 Turn on the TV mode AirPlay (available on Samsung 2018+ and LG 2019+ models).
• 📱 On iPhone, open Control Center → Screen Mirroring.
• 🔄 Select a TV from the list.

Method 2: DLNA-enabled apps

A DLNA server on your TV allows you to stream media files (but not the entire screen!) to your iPhone. To do this:

1. Activate DLNA on your TV (Settings → Network → DLNA Server).
2. Install on iPhone VLC or Infuse.
3. In the application, select Local area network and find your TV.

Method 3: Cloud services (for Smart TV)

Some televisions (eg. Samsung QLED 2020+) support remote access via the manufacturer's account:

• 🔑 Register in Samsung Account on TV.
• 📱 Install SmartThings on iPhone and sign in to the same account.
• 🖥️ In the app, select Remote Access → View TV Screen.

⚠️ Note: When streaming via the cloud (SmartThings, LG ThinQ), the video will be compressed to a resolution 720p, and the latency will be 300-500 ms. This is acceptable for watching movies, but not for gaming.

5. How to eliminate audio and video lag during broadcasting

The most common problem when sharing your screen over Wi-Fi is audio and video desynchronization (lip sync). It occurs due to different transmission paths for audio and video streams. Here's how to fix it:

Reason 1: Network congestion

• 📶 Switch your router to the mode 5 GHz (in wireless network settings).
• 🔌 Disconnect all devices except your phone and TV from Wi-Fi.
• 📡 Set a fixed channel (e.g. 149 for 5 GHz) instead of automatic.

Reason 2: Codecs and resolution

Some applications (eg. TeamViewer) use high video compression by default, which increases latency. In the app settings:

• 🎛️ Set resolution 720p instead of 1080p.
• 🔊 Turn off Wi-Fi audio (use your TV speakers).
• 📽️ Turn on the option Hardware acceleration (if available).

Reason 3: Transfer Protocol

Miracast and Wi-Fi Direct have a latency of 100-200 ms, and Google Cast — up to 500 ms. If synchronization is critical (for example, for karaoke), use:

• 🔌 Wired connection: some televisions (eg. Sony Bravia X90J) support USB-C transfer (requires adapter) USB-C → HDMI).
• 📡 Specialized adapters: IOGEAR Wireless HDMI transmits a signal with a delay of less than 50 ms, but costs ~10,000 ₽.

6. Security: How to prevent your stream from being hacked

Sharing your screen over Wi-Fi creates vulnerabilities that can be exploited by attackers. For example, Miracast It is possible to intercept the broadcast video if the network is not secure.

Step 1: Setting up the router

• 🔒 Set up encryption WPA3 (or WPA2-PSK if WPA3 is not supported).
• 🚫 Turn it off WPS - This protocol is vulnerable to brute force attacks.
• 🔄 Turn on Isolation of clients (Client Isolation) so that devices on the network cannot "see" each other.

Step 2: TV Settings

• 🔐 On the menu Settings → Security turn it off Remote access And Guest connection.
• 📱 For Samsung DeX or LG ThinQ Set a PIN code to connect new devices.

Step 3: Streaming Apps

In the settings ApowerMirror or similar programs:

• 🛡️ Turn on Connection request (so that the phone confirms each new connection).
• 🔗 Use Direct connection (Wi-Fi Direct) instead of transmitting through a router - this reduces the risk of traffic interception.

⚠️ Warning: If you are broadcasting sensitive content (such as banking apps or work documents), use VPN on a router (For example, OpenVPN). This encrypts all traffic on the local network, including screen sharing.

7. Alternative methods: when Wi-Fi doesn't work

If streaming over Wi-Fi is not possible (for example, due to interference or an outdated TV), consider these options:

1. USB Transfer (for Android)

Some TVs (Samsung TU8000, LG UN7300) support connecting the phone via USB with the function MHL (Mobile High-Definition Link). This requires an adapter. USB Type-C → HDMI (For example, Anker PowerExpand).

2. Using your phone's camera

If you only need to transmit a static image (for example, a photo from a TV screen):

• 📸 Take a photo of the TV screen.
• 🔍 Use the app Google Lens for text recognition.
• 📤 Send photos to another phone via Nearby Share (Android) or Airdrop (iOS).

3. Analog solutions

For older TVs (before 2015) without Smart functions:

• 📼 Connect analog TV tuner (For example, AVerMedia) to the phone via OTG.
• 📡 Use FM transmitter to transmit audio to a TV radio receiver.

Is it possible to stream TV screen to phone via 4G/5G?

Technically yes, but:

1) You will need to configure port forwarding on the router (port 554 for RTSP).

2) There will be a delay of 1-2 seconds due to internet routing.

3) Your mobile operator may block such traffic (especially on tariffs without "unlimited streaming").

Recommended only for remote viewing (e.g. CCTV cameras on TV).

FAQ: Frequently asked questions about streaming TV to your phone

Is it possible to watch TV on your phone if the TV is turned off?

No, the TV must be turned on and in active mode (not in sleep mode). The exception is if you are using DLNA server on the TV to access recorded programs (for example, on LG with Time Machine function).

Why is there no sound during the broadcast?

Reasons and solutions:

• 🔇 It's disabled in the TV settings HDMI ARC (must be included in Settings → Sound).
• 📵 The app does not support audio streaming (check your settings) ApowerMirror or LetsView).
• 🔊 On iPhone, sound can only be transmitted via AirPlay 2 (available on 2019 and newer TVs).

How to stream TV to your phone via the Internet (not a local network)?

This is possible, but requires:

1. On TV: turn on Remote access (for example, through Samsung SmartThings or LG ThinQ).
2. On the router: configure DDNS and port forwarding (usually 8080 or 554).
3. On your phone: Use the manufacturer's app (eg. SmartThings) or VLC with address rtsp://your_DDNS:554/stream.

⚠️ Risk: Open ports can become a target for hackers. Use only with enabled fail2ban on the router.

What is the maximum resolution supported for streaming?

Depends on the method:

• 📺 Wi-Fi Direct/Miracast: to 1080p@30fps (on Samsung QLED 2021+ possible 4K@24fps).
• 📱 Google Cast: to 1080p@60fps, but with a delay of 300-500 ms.
• 🔌 USB-C → HDMI: to 4K@60fps (without delay).

Is it possible to control the TV from your phone during broadcasting?

Yes, but the methods are different:

• 🎮 On Samsung And LG You can use your phone as a gamepad or remote control through SmartThings/ThinQ.
• 🖱️ In ApowerMirror There is a "Control from phone" mode (works like a touchpad).
• ❌ On Apple TV iPhone control is limited - only basic functions (pause, volume).