This article explains how to connect your iPhone to a TV so you can play or share content from your phone to the TV using screen mirroring. Methods include AirPlay, pairing your phone and TV with a digital AV adapter, or using a mirroring app.
How to Mirror Your iPhone Screen to Samsung TV – Complete Guide
You can connect your iPhone to Samsung TVs that support Airplay 2, including models from 2018 and later.
Make sure both the iPhone and the TV are connected to the same Wi-Fi connection.
Make sure you have enabled Airplay on your iPhone.