LiDAR navigation isn't optional when your home is an obstacle course

If your floor plan is basically a single open rectangle with one chair in the middle, almost any robot vacuum will navigate it fine. But if your home has furniture legs, kids’ toys, stairs, and the general clutter of daily life, the navigation system matters a lot. The Roborock Q10V uses LiDAR and SLAM to build a map of your rooms and track its position within them — it knows where it is, where it’s been, and where it still needs to go. The Dreame D20 relies on basic bump sensors and gyroscopic guesswork. It bumps into things and eventually finds its way, but it takes longer and misses spots. In a home with tight corners, narrow pathways, or any kind of clutter, the LiDAR-based system isn’t a luxury — it’s the difference between a vacuum that cleans and one that wanders.