Snapshots track responsive pages by default. We are able to achieve this by tracking clicks to an elements on your page instead of the x-y location of the click. This allows us to place clicks with the correct element regardless of screen size. The screenshot of the page will always be of the desktop version of the page.
Mobile and Tablet specific snapshots are available starting on the Plus plan. The Plus plan allows three snapshots per url; one Desktop, one Tablet one one Mobile.
Also See
http://support.crazyegg.com/how-do-i-track-mobile-or-tablet-devices/