11% cheaper ≈ US$1,150
- Mop type Vibrating / sonic mop vs Mop pad
- Base station All-in-one dock (empty + wash) vs Auto-empty dock
- Battery capacity 5,200 mAh vs 4,500 mAh
- Charging time 360 min vs 180 min
- Height 96 mm vs 87 mm
10 robot vacuum and mop combos at a similar price that compete with the Roomba Combo j9+ — what each does better, what it gives up and how the price compares.