All snapshots will track mobile and tablet devices by default. The default screenshot of the snapshot will be of the desktop version of the page.
Users of the Plus and Pro plan have the ability to create mobile/tablet specific snapshots. Mobile tracking options can be found under “Show Advanced Options” when creating a new snapshot.
Mobile snapshots can also be compared to desktop versions of the same page.
Simply click “Compare Mobile vs Desktop”.
Reminder: Only one snapshot can track any device type at a time. Three snapshots can be created, one for each device type but two snapshots can not track the same device type for the same url.