The main difference between porcelain and ceramic tile is that porcelain tile is that it is denser and less porous than ceramic tile. Porcelain tile can be used both indoors and outdoors due to its durability. Ceramic tiles are only recommended for interior walls and floors. If the area has a lot of traffic, porcelain tile should be used

Ceramic tiles are made from a natural clay.  Porcelain tiles are also made from clay, although the clay is denser and ground sand is added to the mixture. Porcelain tiles are fired at higher temperatures and for a longer time than ceramic tiles. This removes almost all of the water content.

Porcelain tiles are usually made without a glaze, making the color run throughout the whole piece, which can hide chips or damage.  Since porcelain tiles are denser, the material is more difficult to work with. Ceramic tiles are easier to install and cut.