Customization options allow users to personalize their sex dolls to better suit their preferences and enhance their experience. Among the most popular options are choices related to physical appearance, such as skin tone, hair color, eye color, and body shape. Many manufacturers offer a range of facial features, including different eye shapes, lip styles, and hairstyles, to create a unique look.

Body customization includes selecting height, bust size, waist, hips, and limb proportions, allowing for a truly personalized figure. Additionally, users can choose specific skin textures or finishes, such as matte or glossy, to enhance realism. Internal features like oral or vaginal cavities can be customized with different textures or depths to improve sensation.

Other popular options include adding realistic makeup, tattoos, or piercings, as well as choosing clothing and accessories for the doll. Some manufacturers also offer customizable or interchangeable parts, like hands or breasts, for further personalization. Advanced customization may extend to voice options or AI behavioral traits, making each doll a truly unique companion tailored to individual preferences.