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 the TV, by casting wirelessly through a device like a Chromecast or Roku, or by using your TV's built-in wireless features if it has them. Which method works depends on what TV you own, what phone you have, and whether you want a permanent cable or wireless convenience.
The cable method is the most reliable — it works the same way every time and doesn't depend on your WiFi. Wireless casting is easier if you move your phone around or want to share the screen without fumbling with cables. Built-in TV features (like AirPlay on newer Samsung TVs or Miracast on some Android TVs) skip the extra device but only work if your TV has them.
Key Takeaways
- A wired connection using USB-C, HDMI, or Lightning cables is the most stable option and works even if your WiFi is down.
- Wireless casting through Chromecast, Roku, or Apple TV requires both your phone and the casting device to be on the same WiFi network.
- Some newer TVs have wireless mirroring built in without needing a separate device, but this feature varies by brand and model year.
- HDMI adapters for phones are inexpensive and work with almost any TV, but you may need a different adapter depending on your phone's charging port.
Connecting with a cable: HDMI adapters and USB options
The simplest wired method is an HDMI adapter. If your phone has a USB-C port (most Android phones made after 2018, and all iPhones from iPhone 15 onward), you can buy a USB-C to HDMI adapter for $15 to $30. Plug the adapter into your phone's charging port, plug an HDMI cable into the adapter, and plug the other end of the HDMI cable into any HDMI port on your TV. Your phone's screen appears on the TV almost when ready.
If you have an older iPhone (iPhone 14 or earlier), you need a Lightning to HDMI adapter instead, which costs about the same. Older Android phones with micro-USB ports need a micro-USB to HDMI adapter. The TV should recognize the connection automatically — if it doesn't, use the TV remote to switch to the HDMI input that matches the port you plugged into (usually labeled HDMI 1, HDMI 2, etc.).
One limitation: while your phone is connected by cable, you usually cannot charge it at the same time unless you buy a more expensive adapter with a separate charging port. The cable also limits how far you can sit from the TV.
Wireless casting with Chromecast, Roku, or Apple TV
If your TV has a Chromecast built in (Google TVs, some Sony and LG models), you can cast from any Android phone or iPhone without buying anything extra. Open any app — YouTube, Netflix, Chrome, or even your photos — and look for a cast icon (usually a rectangle with WiFi waves in the corner). Tap it, select your TV from the list, and the content appears on the big screen. Your phone becomes a remote control.
If your TV doesn't have Chromecast built in, you can plug a Chromecast device (a small stick or box) into an HDMI port and a power outlet. The setup takes about five minutes: connect the Chromecast to your WiFi using the Google Home app, and then cast the same way. A Chromecast device costs $30 to $50.
Roku works the same way — if your TV is a Roku TV, the casting feature is already there. If not, a Roku Streaming Stick plugs into HDMI and costs $30 to $80 depending on the model. Apple TV is the most expensive option at $100 to $200, but it works with both iPhones and Android phones, and it does more than just mirroring (it's also a full streaming device).
All wireless casting requires your phone and the TV device to be on the same WiFi network. If your WiFi is slow or unstable, the picture may lag or drop. Casting also drains your phone's battery faster than a wired connection.
Built-in wireless features on newer TVs
Some newer TVs have wireless mirroring without needing a separate device. Samsung TVs made after 2020 support AirPlay (for iPhones) and SmartThings (for Android phones). LG TVs support AirPlay and Miracast. Sony TVs support Miracast. To use these features, go to your phone's settings, find the screen mirroring or AirPlay option, and select your TV from the list.
The advantage is simplicity — no extra device to buy or set up. The disadvantage is that this feature varies by TV brand, model, and year. Check your TV's manual or the manufacturer's website to see if yours supports it. Even if it does, the feature sometimes works inconsistently or requires you to restart both devices.
Comparing the three methods
| Method | Cost | Setup Time | Reliability | Best For |
|---|---|---|---|---|
| HDMI cable and adapter | $15–$30 | 1 minute | Very high — works every time | Presentations, gaming, situations where WiFi is unreliable |
| Chromecast or Roku device | $30–$80 | 5 minutes | High — occasional lag on slow WiFi | Streaming video, casual use, moving between rooms |
| Built-in TV wireless (AirPlay, Miracast) | $0 | 2 minutes | Medium — inconsistent on some TVs | Quick mirroring if your TV supports it |
What to do if the connection doesn't work
If you plug in a cable and nothing appears on the TV, first check that you're using the correct HDMI port. Use the TV remote to cycle through the inputs until you see your phone's screen. If you still see nothing, try a different HDMI cable or adapter — the one you're using may be faulty.
If you're casting wirelessly and your phone doesn't see the TV in the list, make sure both devices are on the same WiFi network. Restart your phone and the casting device (unplug it for 10 seconds, then plug it back in). If the picture lags or freezes, move closer to your WiFi router or switch to a less crowded WiFi channel using your router's settings.
For built-in TV wireless features, check your TV's manual to confirm the feature is turned on in the settings menu. Some TVs disable it by default. If it still doesn't work, restart both your phone and TV.
Security and privacy when connecting your phone to a TV
When you connect your phone to a TV, everything on your screen is visible to anyone in the room. This matters if you're showing banking apps, messages, or photos you don't want others to see. With a cable connection, only the HDMI port is involved — no WiFi or internet connection needed. With wireless casting, your phone and TV communicate over your home WiFi, which is encrypted if you have a password on your network.
If you're using a public WiFi network (at a hotel, coffee shop, or office), avoid casting sensitive content. Stick to a cable connection instead. When you're done using any casting device, sign out of your accounts (Netflix, YouTube, etc.) so the next person who uses the TV doesn't have access to your subscriptions.
Frequently Asked Questions
Can I charge my phone while it's connected to the TV with a cable?
Not with a standard HDMI adapter. Your phone's charging port is occupied by the adapter. You can buy a USB-C hub with both HDMI and charging ports, but these cost $40 to $80 and are bulkier. For most people, wireless casting is easier if you need to charge at the same time.
Do I need WiFi to use a cable connection?
No. A wired HDMI connection works without WiFi or internet. This makes it the most reliable option if your WiFi is down or unreliable. Wireless casting requires WiFi.
What if my TV is very old and doesn't have HDMI?
Older TVs with only composite (red, white, yellow) cables or VGA ports can still work with adapters, but they're harder to find and less reliable. Your best option is to buy an inexpensive Chromecast or Roku device, which plugs into HDMI. If your TV has no HDMI at all, consider whether it's time to upgrade.
Can I use my phone as a remote while casting?
Yes, with most casting devices. When you cast to Chromecast or Roku, your phone becomes a remote — you can pause, play, adjust volume, and navigate menus. With a cable connection, your phone screen is just mirrored, so you control it the same way you normally would.
Is wireless casting find on my home WiFi?
Yes, if your WiFi network has a password. The connection is encrypted. However, anyone on your WiFi network could potentially see what you're casting if they're technically skilled. For sensitive content, a wired cable connection is more private because it doesn't use WiFi at all.