headless browser vs real browser

Question

1) headless browser are  real browser how to choose.

Answer 1

Take a look at this.

https://testguild.com/headless-browser-testing-pros-cons/#:~:text=Headless%20Browsers%20are%20Faster%20than%20Real%20Browsers&text=But%20you%20will%20typically%20see,be%20a%20way%20to%20go.

This will give you a clear idea of when you should use a headless browser and when to use real browser.

Answer 2

I would say prefer Headless browser over real browser when you have to consider performance.

If you have to do error detection and confuse that your tests are not complete then prefer the Real browser.