Any content type in CMS can be assigned a default template to use to display the content on a mobile device. To create a mobile display template for a particular content type:
  1. Hover over the "Content Types" tab and choose the content type in question, then click on "Properties".
  2. At the bottom of the page where it says "Display Templates" click on "New Template".
  3. Design a new display template that is simpler, taking into account the narrower screen size, and save it.
  4. Navigate back to the "Properties" page and locate the display template you just designed. Next to the template click "Properties".
  5. Check the box next to "Use as the default display mobile template" and save.
Now whenever this content type is viewed on a mobile device, the template you have just designed will automatically be used.