Is it true that you can test a site for correct work with the retina in the Chrome device emulator?

Question

Google Chrome

Hello!
Googled on the topic of how to test a site for a retina if there is no retina at hand. As a result, many say that you can use the device emulator in chrome. In particular, they write that you just need to increase the pixel ratio to 2. I always have 2 by default. That 1 that 2 is the same. So the question is, is this true? If not, what tools do you use. Thank you.

Answer 1

Retina is just a marketing name for an IPS matrix.

Answer 2

can F12 mobile chrome - apple device