An express warranty is a specific promise made by a seller about the quality or performance of a product. This warranty can be communicated through written statements, advertisements, or verbal assurances. For example, if a company claims that a smartphone is waterproof for a certain depth, that statement serves as an express warranty. If the product fails to meet the promised standards, the buyer may have the right to seek remedies, such as repairs or replacements. Express warranties are legally binding, meaning that sellers must honor their claims, ensuring consumer protection and trust in the marketplace.