As the whole, between the general walking shoes and skate shoes, the difference of both is no huge. But, if you are a runner or skater, they are different because of the different purpose.
You will be able to have trouble with skate shoes if you utilize it for long-distance walking. You should know that the skate shoes have the flat sole without being built to thump continuously. Even, the internal design of the skate shoes has the pad. And of course we highly appreciate that they are comfortable for running or walking.