Older Canons cameras had a lovely IR remote. Worked great.
Now they use a Bluetooth remote — or you can use a complex remote app on an iPhone called Canon Connect.app.
If you do ever get your camera paired to your iPhone you’ll run into trouble when you switch phones. How do delete the old pairing?
I think you don’t - at least, not directly.
Go to Wireless Communication Settings. Then Bluetooth Function (not Wi-Fi). Their you check/clear connection info and then do Pairing again. The Wi-Fi info will then get set when you use the Cannon Connect.app to connect to the Camera’s built-in hotspot.
The trick is you start with Bluetooth, the Wi-Fi settings are stored thereafter.