Roborock Q5 vs Roomba 694: Lidar navigation wins for mapping, but both are only good on low-pile carpets

The [Roborock Q](https://www.amazon.com/s?k=Roborock+Q&tag=wehavethat-20)5 has lidar navigation for smart mapping, while the Roomba 694 uses random bump navigation. Both have decent suction and rubber brushrolls that resist tangling, but neither handles high-pile or shag carpets well — they’re best on low to medium-pile carpets for daily dirt and pet hair.