In this context one must remember to use the Audience reports which provide insight into the demographics of your audiences.
How to see Audience report?
- Go to Audience > Demographics. your mix of new and return users and the level of engagement of your users.
- Go to Audience > Behavior. the browsers and networks being used to access your site/app.
- Go to Audience > Technology. the mobile devices being used to access your site/app. Go to Audience > Mobile.