Modern UX is a reimagining
The Modern UX has been designed from the ground up to be more intuitive,
powerful, and convenient for today's end users, and whether they connect
to SharePoint on a traditional PC or a handheld mobile device,
the content and performance will be the same.
Modernize your SharePoint sites
The Modern experience in SharePoint is designed to be compelling, flexible, and more performant. Modern makes it easier for anyone to create beautiful, dynamic sites and pages that are mobile ready. Whereas previous versions of SharePoint are more of a platform where power users and developers create sites for their users, Modern SharePoint is more of an app than a sandbox.