If aesthetics are subjective, then "weight" is an objective physical barrier. Traditional life size sex dolls, often weighing 70-80 kilograms, pose significant challenges for users in terms of cleaning, storage, and interaction. The flat chested sex doll , with their slender limbs and smaller torsos...

At the annual international conferences on sex technology, full body sex dolls serve as a standard experimental platform, allowing researchers from different fields to conduct comparative studies using the same baseline. This collaboration has given rise to the emerging discipline of "sex engineerin...