5% cheaper ≈ US$210
- Base station Auto-empty dock vs Charging dock
- Charging time 240 min vs 360 min
- Dustbin (robot) 500 ml vs 430 ml
- Mop type Vibrating / sonic mop vs Rotating mop pads
- Suction power 10,000 Pa vs 15,000 Pa
10 robot vacuum and mop combos at a similar price that compete with the Robot Vacuum S40 Pro — what each does better, what it gives up and how the price compares.