What are the differences between a kami and a god from greek mythology?

Question:

Answer:

Gods or deities are supposed to have human like entities. Greek gods and deities are countable. Most of gods have unique names.
Kami doesn't need to be human-like entities. It's ubiquitous. It could be either countable or uncountable. Kami could sometime embody in human shape and human name or unique name, but it temporary, it's not essential. Kami is more like energy of nature, than humal-like entities.

Most of gods and deities in greek mythology have human-like or human-animal like icon. Most of Japanese kami has no icon.
Japanese worship some object, in which they believe kami resides; like mirrors, trees, logs, rocks, gems, swords....