Budgee

·He was created by Five Elements Roboties.

·With two wheels and a little basket, he can carry things for you while you're at the shops.

Paro

·He was made by Takanori Shibata.

·He is used on patients in hospitals.

·He can learn a name and even show feelings such as surprise, happiness and sadness.

Rover

·He was created by a team at Sydney University.

·He is used to make cows move together from a field to a diary（牛奶场）.

Simon

·He was developed by the Georgia Institute of Technology.

·He can clean up offices.

·In tests, he could tell whether someone was paying attention to him or not.