Connecting your iPhone to a Roku TV without Wi-Fi can be a bit challenging, as both devices typically require a Wi-Fi connection to communicate with each other. However, there is a workaround that you can try if you have an iPhone with a cellular data connection.
Here are the steps to follow:
Turn on your iPhone's Personal Hotspot feature by going to "Settings," then "Personal Hotspot."
Connect your Roku TV to your iPhone's Personal Hotspot by going to the Roku's "Settings" menu, then selecting "Network" and then "Wireless."
When you see your iPhone's hotspot name listed in the available networks, select it and enter the password if prompted.
Wait for the Roku to connect to your iPhone's hotspot.
Launch the Roku app on your iPhone, and it should automatically detect the Roku TV.
Once the app connects to the Roku, you can use it to control the TV and access your favorite streaming services.
Keep in mind that connecting to your iPhone's hotspot will use up your cellular data, so be mindful of your data usage if you plan to use this method frequently. It's also important to note that the streaming quality may be affected, depending on the strength of your cellular signal.