Several key features contribute to making sex dolls feel more human and lifelike. Realistic skin textures, such as silicone or TPE with detailed pores, veins, and subtle color variations, are fundamental. Flexible, jointed limbs and articulated necks enable natural poses and movements, mimicking human flexibility. The inclusion of thermal regulation technology helps the doll feel warm to the touch, closely resembling body temperature. Voice capabilities and programmable responses can add an emotional dimension, making interactions feel more genuine. Detailed facial features, including expressive eyes, realistic eyelashes, and movable jaws or lips, enhance visual authenticity. Sensory features like soft, responsive textures and even subtle vibrations can simulate human touch. Breathable skin technology and internal support structures contribute to comfort and realism during use. Customizable features such as hair, eye color, and body shape allow users to personalize their experience further. Some advanced models incorporate heating elements or sound systems to simulate breathing, heartbeat, or speech, heightening the overall realism. These features, combined with high-quality craftsmanship, create a more immersive and human-like experience, transforming a simple adult product into a convincing and emotionally engaging companion.