In this guide
Miracast is a wireless display standard from the Wi-Fi Alliance that streams video and audio from a phone, laptop, or tablet directly to a TV, monitor, or projector using Wi-Fi Direct — no router or HDMI cable required.
- Both devices support Wi-Fi Direct and Miracast
- Source device runs Android 4.2+ or Windows 8.1+
- Display has built-in Miracast or a Miracast adapter
- Devices are within Wi-Fi Direct range of each other
- Either device lacks Wi-Fi Direct support
- Miracast is disabled or unsupported in firmware
- Display doesn’t support the H.264 codec
- Strong wireless interference disrupts the connection
What Miracast Actually Does
Think of Miracast as HDMI over Wi-Fi. It creates an encrypted peer-to-peer connection between two devices using Wi-Fi Direct, so neither device needs to be on the same router or network. Once connected, it mirrors your screen in real time at up to 1080p HD using the H.264 video codec, with support for up to 5.1 surround sound.
The connection is secured with WPA2 encryption negotiated via WPS, making it a private link between just your two devices.
Which Devices Support Miracast
Miracast support is built into a wide range of devices, but it’s not universal. Here’s a quick reference:
| Setup | Works? | Need | Note |
|---|---|---|---|
| Android phone to Miracast TV | Yes | Android 4.2+ | Called “Screen Mirror” or “Cast” on most phones |
| Windows laptop to Miracast display | Yes | Windows 8.1+ | Use “Connect” from Action Center |
| iPhone to Miracast TV | No | Apple TV or AirPlay | Apple uses AirPlay, not Miracast |
| Mac to Miracast display | No | Third-party adapter | macOS does not support Miracast natively |
| Laptop to non-Miracast TV | Yes | Miracast dongle (e.g. Actiontec) | Plugs into HDMI port on TV |
If your TV doesn’t have Miracast built in, you can add it with a small adapter that plugs into any HDMI port. This is the same approach used when you need to connect a USB-C device to an HDMI display without native support.
Miracast vs. Other Wireless Display Options
Miracast is one of several wireless display protocols. Knowing the difference prevents buying the wrong adapter:
- Miracast — open standard, works across Android and Windows, peer-to-peer
- AirPlay — Apple only, requires Apple TV or AirPlay-compatible display
- Chromecast — Google standard, streams content rather than mirroring the screen natively
- WiDi (Intel Wireless Display) — older Intel standard, replaced by Miracast on modern hardware
For the full picture on how wireless and wired video output options compare, see our guide on whether USB-C supports video output.
Why Miracast Sometimes Fails
Miracast is reliable when both devices are compatible, but a few things commonly cause problems:
- Crowded 2.4 GHz or 5 GHz Wi-Fi environments can interfere with the Wi-Fi Direct signal
- Some Android skins (Samsung, Xiaomi) bury or rename the Miracast option, making it hard to find
- Corporate or enterprise devices sometimes have Wi-Fi Direct disabled by IT policy
- Outdated TV firmware may drop Miracast support after software updates
For official certification details and a list of certified devices, the Wi-Fi Alliance Miracast page is the most reliable reference.
Bottom line: Miracast is the most widely supported wireless display standard for Android and Windows devices, streaming up to 1080p directly between two devices with no router needed. It won’t work with Apple devices, and both ends must support Wi-Fi Direct — but if they do, it’s a cable-free alternative to HDMI that works straight out of the box.