The difference between Under Armour and Under Armour is that their names come from different sources, and their trademarks and brand identities are different.

1. Origin of the name: UnderArmour is the official name of the brand, while "UnderArmour" is a misnomer in the Chinese market due to similar pronunciation and spelling.

2. Trademark and brand identity: The real Under Armor brand has a specific trademark and brand identity, while "Ander Armor" is just an imitation or misleading of the brand.

3. Under Armor products are all made of nylon and polyester. The design style is relatively simple. It started in college football, so it has a high status in the minds of young people. In the United States, when you mention UnderArmour, you will inevitably think of high-end and professional sports equipment. UnderArmour has gradually become synonymous with "Professional". It is considered a top brand in sports equipment. Tights are its most famous product.