I tried thoroughly investigating whether Anker's robot vacuum cleaner 'Eufy RoboVac 11S' that can be purchased for the 20,000-yen range evolved - GIGAZINE
Eufy Robovac 11S Robot Vacuum Review - Reviewed
eufy [BoostIQ] RoboVac 12, Robot Vacuum Cleaner, Suction Upgraded Based on RoboVac 11S, 1500Pa Strong Suction, Super-Thin, Quiet, Self-Charging, Cleans Hard Floors to Medium-Pile Carpets Robotic Vacuums - Newegg.com