Updated: Aug 4, 2021
Stun your next audience by showing your phone or tablet right on the screen without any pairing.
Google Chrome has a not-so-obvious menu when you render things for a predefined form factor.
Open a site in Chrome
Press Ctrl-Shift-I to get developer tools (or F12)
Press Ctrl-Shift-M to get a mobile toolbar. You should see something like this:
Click on the ellipsis dots and then click Show Device Frame
You can now choose what type of device you want to see.