Know which device is used by user on a website

I have a website and I need to know which device is used by my users.

Is there a way to know which device is used by a user on a website?

I know some website like webkay.robinlinus can demonstrate all a browser knows about a user.

The best will be to have the device (iPhone/Android) and the type of iPhone (8/XR,etc..) would be perfect.

Thank you for your advices