A brand is a product, service, or concept that is publicly distinguished from other products, services, or concepts so that it can be easily communicated and usually marketed. A brand name is the name of the distinctive product, service, or concept.
example: Branding often takes the form of a recognizable symbol to which consumers easily identify, such as a logo. Common examples include the Nike "swoosh," the golden arches of McDonald's and the apple used by Apple Computers.
A brand company produce their different product with version name.. because they develop different type of product with version.
example: redmi note 5, redmi 6 etc.