Height and proportion influence not only aesthetics but comfort, usability, and safety. Designers consider ergonomic factors to ensure joints, limbs, and torsos align with natural human range of motion, reducing strain for users who interact with the doll for extended periods. Proportions that appear balanced and lifelike can enhance the overall experience by creating intuitive, natural-feeling movement and contact points.

Comfort also depends on materials, seam quality, and interior support structures. Realistic weight distribution helps the doll feel stable during repositioning and use. Accessible design features, such as adjustable height settings, handles for safe moving, and easy cleaning access, contribute to a user-friendly experience. When considering travel or storage, compact dimensions and modular components can reduce bulk without sacrificing realism or stability.

Cultural and personal preferences shape choices about height and proportion. Manufacturers may offer a range of anatomical options to reflect diverse ideals of beauty and body type, while ensuring safety margins for mechanical components. Transparent sizing information, responsive customer support, and clear maintenance guidance help users choose a product that fits their body needs, living space, and comfort expectations.