The fastest way depends on what you own
You can connect a phone to a TV in three main ways: with a cable plugged into the TV's HDMI port, by casting wirelessly if both devices support it, or through an adapter that converts your phone's connector to HDMI. The method that works for you depends on whether your TV has an HDMI port (nearly all modern TVs do), what kind of phone you have, and whether you want a permanent cable or wireless connection.
The cable method is the most reliable — it works immediately and doesn't depend on your WiFi. Wireless casting is faster to set up once and works from anywhere in the room, but requires both devices to support the same standard. An adapter sits between these two: it's wireless in spirit but uses a physical connection to the TV.
Key Takeaways
- HDMI cables with the right adapter for your phone are the most reliable method and work with any TV that has an HDMI port.
- Wireless casting (Chromecast, AirPlay, or Miracast) requires both your phone and TV to support the same standard, but lets you move around freely.
- Streaming devices like Google Chromecast or Amazon Fire Stick add casting to any TV with an HDMI port if your TV doesn't have it built in.
- Once connected, your phone's screen mirrors to the TV, or apps like YouTube and Netflix send video directly without mirroring your entire phone.
Connecting with an HDMI cable and adapter
This is the most straightforward method if your TV has an HDMI port (a rectangular slot, usually on the back or side). You need a cable that connects your phone's charging port to an HDMI connector. For iPhones, buy a Lightning to HDMI adapter or cable. For Android phones with USB-C, buy a USB-C to HDMI adapter. For older Android phones with Micro-USB, buy a Micro-USB to HDMI adapter. These cost between $15 and $40 and work immediately without setup.
Plug one end into your phone's charging port and the other into any available HDMI port on your TV. Turn on the TV and switch to the HDMI input using your remote — you'll see a button labeled HDMI or Input. Your phone's screen should appear on the TV within seconds. If it doesn't, try unplugging and replugging the adapter, or restart your phone.
One limitation: your phone will charge slowly or not at all while connected this way, because the adapter uses the charging port. If you need to charge while connected, look for an adapter that has a separate charging port built in — these cost more but solve the problem.
Casting wirelessly from an iPhone
iPhones use a standard called AirPlay to send video to compatible TVs and devices. If your TV is a newer model from Samsung, LG, Sony, or Vizio, it likely has AirPlay built in. Check your TV's manual or settings menu for "AirPlay" to confirm. If your TV doesn't have it, you can add it by plugging in an Apple TV device (a small box that connects to HDMI) or an AirPlay-compatible streaming device.
To cast from your iPhone, swipe down from the top-right corner to open Control Center. Tap "Screen Mirroring" and select your TV from the list. Your entire iPhone screen will appear on the TV. If you want to send just video from apps like YouTube or Apple TV instead of mirroring your whole screen, open the app, tap the AirPlay icon (usually in the upper corner), and select your TV — this uses less battery and lets you use your phone for other things while video plays.
If your TV doesn't appear in the list, make sure your iPhone and TV are on the same WiFi network. If they are and it still doesn't show up, restart your iPhone and try again. AirPlay works best when your phone and TV are in the same room and within 30 feet of your WiFi router.
Casting wirelessly from an Android phone
Android phones use a standard called Miracast or Google Cast, depending on the phone and TV. Most newer Android phones and TVs support one of these. Check your TV's manual or settings for "Cast" or "Miracast" to see if it's built in. If not, you can add casting by plugging a Google Chromecast device (a small stick that costs about $30) into your TV's HDMI port.
To cast from an Android phone, swipe down twice from the top to open Quick Settings. Look for a button labeled "Cast," "Screen Cast," or "Wireless Display." Tap it and select your TV from the list. Your phone's screen will appear on the TV. Like AirPlay, many apps (YouTube, Netflix, Google Play) have their own cast button inside the app — use that instead of screen mirroring if you want to save battery and use your phone while video plays.
If your TV doesn't appear, make sure your phone and TV are on the same WiFi network and that your TV's cast feature is turned on. Restart your phone if the TV still doesn't show up. Some Android phones call this feature "Smart View" or "Screen Mirroring" instead of Cast — check your phone's settings menu under Display or Connected Devices if you can't find it in Quick Settings.
Adding casting to an older TV
If your TV doesn't have casting built in but has an HDMI port, you can add it with a streaming device. A Google Chromecast (works with Android and iPhone) costs about $30 and plugs into any HDMI port. An Amazon Fire Stick (also about $30) works similarly. Both devices connect to your WiFi and let you cast from your phone using the same steps described above.
Plug the device into an HDMI port on your TV, switch to that HDMI input, and follow the on-screen setup — you'll connect it to your WiFi and sign in with a Google or Amazon account. Once set up, you can cast to it from any phone on the same network. These devices also let you use apps like Netflix and YouTube directly on your TV without casting from your phone, which is often faster and easier.
Troubleshooting when nothing appears on the TV
If you've plugged in a cable or cast wirelessly and your phone's screen still isn't showing on the TV, start with these steps. First, make sure you've switched the TV to the correct HDMI input — use your remote to cycle through inputs until you see your phone's screen or a "no signal" message. Second, restart both your phone and TV by turning them off for 10 seconds and back on. Third, if you're using a cable, try a different HDMI port on the TV — sometimes one port doesn't work.
For wireless casting, confirm that your phone and TV are on the same WiFi network. If your phone is on a 5GHz network and your TV only supports 2.4GHz, they won't see each other — check your router's settings or ask your internet provider which band you're on. If you're still stuck, unpair the devices completely (forget the TV from your phone's settings, or reset the casting device) and set them up again from scratch.
What happens after you connect
Once your phone is connected to the TV, you can watch video, browse photos, or use any app on the big screen. If you're using a cable, your phone will stay connected as long as the cable is plugged in. If you're casting wirelessly, your phone will stay connected as long as it's on the same WiFi network and you don't move too far away — if you leave the house, the connection will drop.
Most apps let you control what's playing from your phone even while it's on the TV. For example, you can pause a YouTube video on your TV using your phone, or adjust the volume. If you're mirroring your entire phone screen, anything you do on your phone appears on the TV, so be careful about notifications or messages that might pop up.
Frequently Asked Questions
Can I connect my phone to a TV that doesn't have HDMI?
Older TVs with only composite (red, white, yellow) or component (red, green, blue) ports can't connect directly to a modern phone. Your best option is to buy a streaming device like Google Chromecast or Amazon Fire Stick, which plugs into HDMI — but this requires your TV to have at least one HDMI port. If your TV has no HDMI at all, you would need to replace it or use a separate monitor.
Will my phone charge while connected with a cable?
Most HDMI adapters draw power from your phone's charging port, so your phone won't charge and may drain battery faster. Some premium adapters include a separate charging port, but they cost $40 to $80. Wireless casting doesn't use the charging port, so your phone can charge normally while casting.
Why does my phone get hot when connected to the TV?
Sending video to a TV uses a lot of power and can make your phone warm, especially with a cable connection. This is normal. If your phone gets uncomfortably hot, disconnect it and let it cool down. Wireless casting generates less heat than cable connections.
Can I use my phone as a remote while the TV is mirroring?
Yes, but anything you do on your phone will show on the TV. If you want to use your phone privately while video plays on the TV, use app-specific casting (like the YouTube or Netflix cast button) instead of screen mirroring. This sends only the video to the TV and lets you use your phone for other things.
What if my TV and phone are on different WiFi networks?
Wireless casting requires both devices on the same network. If your phone is on your home WiFi and your TV is on a guest network, they won't see each other. Switch your phone to the same network as your TV, or ask your internet provider or router manual how to put both on the same band.