Web application test using mobile using chrome

Hi I would like to test an application and its responsiveness in different mobile devises and iPad.
We do not have a dedicated app for this.
What I need is:
1.Emulate the mobile device
2.Open Chrome
3.Test the Website to check the components work as desired

Note: I already have appium and katalon set up for this
Can someone help please

Maybe this link will help you. https://docs.katalon.com/katalon-studio/docs/running_application_mobile_browsers.html#requirements