Customization has become a defining trend in the development of advanced sex dolls, allowing users to create highly personalized experiences. Manufacturers now offer extensive options for physical appearance, including skin tone, body shape, height, breast size, and facial features, enabling users to design dolls that match their ideal aesthetic. Beyond looks, customization extends to hair color, eye color, and even voice preferences, often facilitated through digital interfaces or dedicated apps. Some companies allow for internal modifications, such as adjustable joints, removable parts, or additional features like built-in heating or sound systems. The trend also encompasses personality traits and behavioral customization, especially with the integration of AI, which can adapt responses and interactions to suit individual preferences. This level of personalization enhances user satisfaction and emotional connection, making each doll a unique companion. As technology advances, the scope of customization is expected to expand further, incorporating virtual reality, tactile feedback, and even scent delivery systems. This personalization trend reflects a broader movement toward individual expression and tailored experiences in adult products.