Sex dolls utilize various heating methods to deliver different levels of realism and safety. The most common type involves internal electric heating elements embedded within the doll’s body, providing consistent and controllable warmth. Some models use resistive heating wires or mats that evenly distribute heat across the surface. Others incorporate non-electric methods, such as chemical or microwave heating packs, though these are less common due to safety concerns. Advanced dolls may feature smart heating systems with sensors and microprocessors, allowing precise temperature regulation and automatic adjustments for safety. Some manufacturers also use conductive heating, where heat is transferred through the material itself, mimicking natural skin warmth. Each type offers unique benefits and considerations regarding safety, ease of use, and realism. Choosing the right heating method depends on user preferences, budget, and desired experience level. As technology progresses, innovations continue to refine these systems, making heated dolls safer, more realistic, and more customizable.