Cast With Chromecast
If you have a Chromecast dongle or a TV with built-in Chromecast support, your best bet is to use this method. You can send content from your phone to the TV using the streaming icon on the bottom of our video players. Just make sure your device is on the same Wi-Fi network as your Chromecast/smart TV. Then tap the cast icon in the app, and choose the compatible device to which you’d like to cast to. Google’s own support page for Chromecast can be found here
Android Screen Mirroring
Screen mirroring is another option. Note that while Android has supported screen mirroring since version 5.0 Lollipop, some phones are better optimized to use it than others.
There are two ways to do this. On some Android phones, you can pull down the settings shade and find a Cast button with the same icon you’d find inside your apps. Tap this and it will share your entire screen.
If not, install the Google Home app. Navigate to Account > Mirror device > Cast Screen/Audio (above) to cast your display to a compatible device.
Samsung Galaxy Smart View
Samsung’s Galaxy phones, have something called Smart View, which allows you to connect and share to and from your mobile device. More information can be found here.
Connect With an Adapter or Cable
If you don’t have a Chromecast-compatible device—or if your phone isn’t optimized for it—you can use an HDMI adapter or cable to connect your phone to your TV and mirror what’s on your screen.
You have a few different options here, and which one you choose will depend on the type of display you’re connecting to, how long, and most importantly whether or not you’ll need to charge your phone while doing it.
USB-C to HDMI Converter
If you need to charge your phone while you mirror it, then you’ll want a converter like this one, which plugs into the USB-C port, then gives you an HDMI port, as well as another USB-C outlet. You can plug in a charger and an HDMI cable and mirror your phone as long as you need. A few examples can be found here
Micro USB to HDMI Adapter
If you have an older Micro USB-style port, you’ll need a different adapter, like this one. With this method, your phone will need to support a different protocol called MHL (here’s a list of phones that support MHL). If you have a supported phone, hook it up to the adapter, then attach an HDMI cable and connect it to a TV.