Do robot vacuums work on shag carpets?

No, most will get stuck or struggle badly. Deep pile shag wraps around wheels and brushes, and the soft surface confuses cliff sensors. Even high-end models like the [Roborock S](https://www.amazon.com/s?k=Roborock+S&tag=wehavethat-20)8 or iRobot j9+ can have trouble. You’re better off with a manual vacuum or setting a no-go zone.