Ceramic pet bowls have a non-splash, spill-resistant curved edge. Heavier than plastic or stainless bowls so does not get pushed around. Better looking than plastic or stainless pet bowls. Width is the overall dimension.
Ceramic bowls are heavier, so do not get pushed around as much. The curved-in top edge reduces spillage and splash. Less food on the floor. Easy to heat food in, and to clean. Dishwasher safe. Dimension is width overall.