The Matryoshka doll was the design metaphor for Lenovo's R1/S1 smart home camera, bringing the feeling of handicrafts into a digital product. The camera can be hidden in its body when not in use, in order to protect the user's privacy. The TF card slot is hidden under the head. This camera can be used with a variety of accessories so that it can be installed anywhere in the home. The integrated design makes it look natural for the camera to turn in any direction. The signature design language is of great significance to the future development of the product line-up.