TOKYO -- The Roomba robot vacuum is seeking to stage a comeback with a new lineup that boasts highly sensitive sensors to ensure thorough cleaning as upstart Chinese competitors expand global share.
Manufacturer iRobot unveils new models to safeguard share in Japan

iRobot is releasing six new Roomba models in Japan on April 18. (Photo by Norika Taguchi)
TOKYO -- The Roomba robot vacuum is seeking to stage a comeback with a new lineup that boasts highly sensitive sensors to ensure thorough cleaning as upstart Chinese competitors expand global share.