Ionic Serve as Specific Platform

I’m using local browser (on windows) to develop an Ionic app (that I wish to have a PWA later on), but I wish that users on Android will have Android experience while iPhone users have iPhone experience when using the PWA / visit the website.

I use ionic serve to start my app, but it always loads the looks and feel of an Android app. How can I instruct it to emulate iPhone app so I can test both Android and iPhone look & feel?