The three ways to connect your phone to a TV

You can connect your phone to a TV using a cable plugged into a port on both devices, by casting wirelessly through an app, or by mirroring your screen without any app at all. Which method works depends on what TV and phone you own, what ports they have, and whether you want to stream video or mirror everything on your screen.

The cable method is the most reliable — it works on almost any TV and phone combination, though you may need an adapter. Wireless casting (like Chromecast or AirPlay) streams video apps directly to your TV without mirroring your whole screen. Screen mirroring copies everything you see on your phone onto the TV, which is useful for presentations or showing photos, but uses more battery and can be slower.

Start by checking what ports your TV has on the back or side — usually HDMI (a flat rectangular port), USB-C, or older models with composite video (red, white, and yellow cables). Then check what your phone has: most modern phones have USB-C, while older iPhones have Lightning ports. If the ports don't match, you'll need an adapter.

Key Takeaways

  • HDMI cables with an adapter are the most reliable method and work with nearly any TV and phone, though you may need to buy the right adapter for your phone's port type.
  • Wireless casting apps like Google Chromecast and Apple AirPlay stream video without mirroring your whole screen, which saves battery and works better for apps.
  • Screen mirroring copies everything on your phone to the TV and works on most modern phones and TVs, but drains battery faster and may have slight lag.
  • Check your TV's ports on the back or side panel before buying cables or adapters, since older TVs may only have composite video or component inputs.

Using an HDMI cable with an adapter

An HDMI cable is the most straightforward method because it sends both video and audio in one connection and works with almost every TV made in the last 15 years. The challenge is that your phone's port probably doesn't match your TV's HDMI port, so you'll need an adapter.

If your phone has USB-C (most Android phones and newer iPhones), buy a USB-C to HDMI adapter — these cost between $15 and $40 and come in two types. A passive adapter is cheaper and lighter but only works if your phone supports HDMI Alt Mode (check your phone's specs). An active adapter is more expensive but works on more phones; look for brands like Anker or Belkin. If you have an older iPhone with a Lightning port, buy a Lightning to HDMI adapter made by Apple or a third-party brand certified for Lightning.

Plug the adapter into your phone, plug the HDMI cable into the adapter, then plug the other end of the cable into an HDMI port on your TV. Switch your TV to the correct HDMI input using the remote (usually labeled HDMI 1, HDMI 2, etc.). Your phone's screen should appear on the TV within a few seconds. Audio will play through your TV's speakers unless you've connected a separate speaker or soundbar to the TV.

Casting video with Google Chromecast or Apple AirPlay

Casting sends video from an app on your phone directly to your TV without mirroring your entire screen. This means you can use your phone for other things while the video plays, and it uses less battery than screen mirroring. Google Chromecast works with Android and iPhones; Apple AirPlay works with iPhones, iPads, and Macs.

For Google Chromecast, you need a Chromecast device plugged into an HDMI port on your TV (a small stick that costs around $30 to $50). Once it's set up and connected to your home WiFi, open a video app like YouTube, Netflix, or Disney+, tap the cast icon (usually in the top right corner), and select your Chromecast device. The video will start playing on your TV while you can control it from your phone.

For Apple AirPlay, your iPhone or iPad must be on the same WiFi network as your TV. Some newer TVs have AirPlay built in; if yours doesn't, you can buy an Apple TV device (starting around $99) and plug it into an HDMI port. Open a video app, tap the AirPlay icon, and select your TV or Apple TV. AirPlay also works with some smart TVs from Samsung, LG, and Sony — check your TV's settings to see if AirPlay is available.

Screen mirroring your entire phone display

Screen mirroring copies everything on your phone — apps, web pages, photos, settings — onto your TV. This is useful for presentations, showing photos to a group, or playing games, but it drains your phone's battery faster than casting and may have a slight delay.

On Android phones, swipe down from the top of the screen twice to open Quick Settings, then look for "Cast", "Screen Cast", or "Wireless Display". Tap it and select your TV or a casting device like Chromecast. Your phone will ask for permission; allow it, and your screen will appear on the TV. The exact name and location of this setting varies by phone brand — Samsung calls it "Smart View", while other brands may call it "Cast Screen" or "Miracast".

On iPhones, swipe down from the top right corner to open Control Center, tap "Screen Mirroring", and select your TV or Apple TV from the list. Your iPhone screen will appear on the TV. If your TV doesn't appear in the list, make sure your iPhone and TV are on the same WiFi network and that your TV supports AirPlay or has an Apple TV connected.

What to do if your TV doesn't have HDMI

Older TVs may only have composite video ports (three cables: red, white, and yellow) or component video (red, green, and blue). These TVs can still work with your phone, but you'll need an adapter that converts from your phone's port to the video format your TV uses.

Look for a USB-C to composite video adapter or USB-C to component video adapter on Amazon or at an electronics store. These are less common than HDMI adapters and may cost $20 to $50. Plug the adapter into your phone, connect the video cables to your TV, and switch your TV to the correct input. Audio may come through a separate jack on the adapter, which you'll plug into your TV's audio input or a speaker.

If your TV is very old and has only an antenna input or no video inputs at all, connecting a phone directly isn't practical. In that case, consider buying an inexpensive streaming device like a Chromecast or Roku stick, which plug into an HDMI port if your TV has one, or using a newer TV or monitor instead.

Troubleshooting common connection problems

If your phone connects but the TV shows a black screen, try unplugging and replugging the cable, or switching to a different HDMI port on your TV. Some TVs require you to manually select the input; use your remote to find the HDMI input that matches the port you plugged into. If you're using an adapter, make sure it's fully inserted into both your phone and the cable.

If casting isn't working, check that your phone and TV are on the same WiFi network — they must be connected to the same router. Restart both devices and try again. If you're using Chromecast or AirPlay, make sure the app you're using supports casting; not all apps do, though most major video apps like YouTube, Netflix, and Hulu do.

If your screen is mirroring but there's a delay or the picture is choppy, move your phone closer to your TV or router — wireless connections work better with less distance. Close other apps running in the background on your phone to free up processing power. If the problem persists, try using an HDMI cable instead, which has no wireless lag.

If audio isn't coming through, check that your TV's volume isn't muted and that the TV's speakers are turned on. Some TVs automatically switch audio to a connected soundbar or speaker; check your TV's audio settings. If you're using a cable connection, make sure the adapter supports audio as well as video — most HDMI adapters do, but some older composite video adapters don't.

Frequently Asked Questions

Can I charge my phone while it's connected to the TV with a cable?

Not with a standard HDMI adapter — the adapter only carries video and audio, not power. If you need to charge while connected, use a USB-C to HDMI adapter that also has a USB-C port for charging, or plug your phone into a separate charger while the HDMI cable is connected. Some active adapters support "pass-through" charging; check the product description before buying.

Does casting or screen mirroring work without WiFi?

Casting and screen mirroring both require WiFi to connect your phone to the TV. If your WiFi is down, use an HDMI cable with an adapter instead. Some newer devices support direct peer-to-peer connections without a router, but this is less common and still requires both devices to support it.

What's the difference between casting and screen mirroring?

Casting sends video from an app directly to your TV — you control the app from your phone, and only the video appears on the TV. Screen mirroring copies your entire phone screen, including all apps and notifications. Casting uses less battery and lets you use your phone for other things; screen mirroring is better for presentations or showing everything on your phone.

Will my phone get hot if I leave it connected to the TV for hours?

HDMI connections generate minimal heat. Wireless casting and screen mirroring use more power and can make your phone warm, especially if you're also charging it at the same time. If your phone gets too hot, disconnect it and let it cool down. Avoid using your phone in direct sunlight while casting, as this can trap heat.

Can I connect two phones to the same TV at the same time?

With an HDMI cable, only one phone can be connected at a time. With casting or screen mirroring, most TVs and devices only accept one connection at a time, though some newer smart TVs may support switching between multiple devices quickly. If you need to show content from two phones, disconnect one and connect the other.