6% pricier ≈ US$380
- Obstacle avoidance AI camera vs Basic sensors (infrared / bumper)
- Dustbin (robot) 400 ml vs 300 ml
10 vacuum-only robots at a similar price that compete with the VR3520n 3v1 Real Force Laser Complete Clean Care UVC — what each does better, what it gives up and how the price compares.