Advancements in robotics and materials science have significantly enhanced the realism of modern sex dolls. Contemporary models feature sophisticated mechanisms that mimic human movements with remarkable precision. Servo motors and joint articulations enable natural-looking gestures such as head turns, limb movements, and even subtle shifts in posture. These movements are often synchronized with internal sensors that respond to touch, allowing the doll to react dynamically during interaction. The integration of flexible silicone or TPE (thermoplastic elastomer) materials further enhances realism by providing lifelike skin texture and elasticity, making movements more authentic and visually convincing. Some high-end models incorporate internal heating systems to simulate body warmth, adding another layer of realism. The combination of these technologies results in a more immersive experience, blurring the line between simulation and reality. As research continues, future developments may include even more fluid and spontaneous movements, incorporating artificial intelligence to enable the doll to adapt and respond in real-time, making interactions feel more genuine and emotionally engaging. These realistic movements not only improve user satisfaction but also push the boundaries of what is technologically possible in the realm of adult companionship devices.