The differences between the two include the difference in font size of individual industrial and commercial households, business recognition and brand building, and different protection of legal rights and interests.

1. Differences in trade names of individual industrial and commercial households: Individual industrial and commercial households without a trade name do not use a specific name when registering, and their business licenses generally only indicate the name of the operator. Individual industrial and commercial households with a trade name choose a special individual industrial and commercial household name (trade name) when registering with the industrial and commercial department.

2. Commercial recognition and brand building: Without a font size, because there is no unique business name, its recognition in the market is low, which is not conducive to brand image building and business expansion. Having a clear font size is conducive to establishing and maintaining a brand image and enhancing customers' awareness and trust of its services or products.

3. Different protection of legal rights and interests: Without a font size, it is difficult to register a trademark and obtain legal protection through a font size, so it may face the risk of being imitated by others in market competition. If you have a trademark, you can protect it by applying for trademark registration to prevent others from infringing, and provide legal protection for long-term stable operations and development.