Responsive design is an approach that makes websites and webshops more user-friendly on mobile devices, i.e. tablets, mobile phones—regardless of size, brand, and version.
The website’s responsive design adapts to the device on which it appears. For instance, the website looks right on smartphones and tablets, whether the device is in landscape or portrait view. When your website or webshop is accessed, its design automatically adjusts to the optimum screen size and resolution used by the individual.
Pages that are not in responsive design are difficult to navigate. Users will have to zoom in and scroll to view pictures, text, and buttons properly. All this trouble for the customer will contribute to lower conversions.