You can mirror the screen of your phone, tablet, laptop, or desktop computer to your Amazon Fire TV Stick, displaying it on your TV. It’s easy to do this from an Android device or Windows 10 computer, but a little trickier from an iPhone or iPad.
Amazon Fire TV Stick: How to Cast Your Phone to Your Amazon Fire TV Stick Using Mirroring
Before you can mirror your mobile device or computer screen to your Fire TV, you'll need to enable the mirroring feature on your Fire TV.
Navigate to the home screen of your Fire TV by pressing the Home button on the remote.
Use the arrow keys on your remote to select settings, indicated by the gear icon on the far right of the apps you last used.