Which aspect does 'user experience' (UX) primarily focus on in product design?

User experience (UX) primarily focuses on how a person feels when interacting with a product. This includes their emotions, perceptions, and overall satisfaction as they use it. UX design emphasizes creating a positive and meaningful experience for the user, taking into consideration aspects such as usability, accessibility, and the overall journey the user has with the product.

The focus on the user's feelings encompasses multiple dimensions, including the intuitiveness of the design, how well the product meets user needs, and the pleasure or discomfort that may arise during interaction. Ensuring a well-thought-out user experience can lead to greater user engagement and loyalty, making it a critical element in product design.

In contrast, while the visual appearance of the product is important, it is just one part of the overall user experience. Technical specifications pertain more to the product's functionality and performance rather than the subjective experience of the user. Lastly, environmental impact, although crucial for sustainable design, does not directly address the user’s feelings during interaction with the product, making it less relevant to the core focus of UX.