The list of supported browsers is available here: https://developers.google.com/maps/documentation/javascript/browsersupport.

The summary is recent and popular/common browsers are supported.

Most features will work on Tablets, PCs (and Macs), as well as smart phones.

The features that do not work on smart phones are:

• filtering (besides the search box)
• data exporting (pdf, image, and excel)
• information below the map
• text based directions
• radius filter
• searching on mobile devices has to be explicitly enabled

The features that do not work on tablets are:

• data exporting (pdf, image, and excel)
• information below the map