Not a dumb question. Panasonic's model designations can be confusing.

The first letter tells you the lens the camera comes with and the second tells you the body color.

For example:

• the G7KK comes with the 14-42mm kit lens and a black body.

• the G7HK comes with the 14-140mm kit lens and a black body.

• and the G7KS comes with the 14-42mm kit lens and a silver body.

And so on. The cameras are all the same.

Hope this is helpful!