Like all robotic vacuums, the Chuwi V7s has cliff detection that keeps it from falling off a ledge or trying to drive down the stairs. One thing that not every robotic vacuum has is IR wall detection. The V7s can sense objects and walls as it approaches them, coming right up to them but turning before it actually touches them. I remember watching my old Roomba drive around running into everything in the house like an idiot. I always thought there had to be a better a way to sense obstacles than by just running into them. Chuwi’s got it figured out with an array of IR sensors on the V7s that make sure it doesn’t run into all of your walls and table legs, leaving them mark-free.