9% cheaper ≈ US$320
- Mop type Roller mop vs Rotating mop pads
- Suction power 18,000 Pa vs 13,000 Pa
- Runtime 290 min vs 230 min
- Mop lift height 10 mm vs 10.5 mm
- Dustbin (robot) 220 ml vs 320 ml
10 robot vacuum and mop combos at a similar price that compete with the D20 Ultra — what each does better, what it gives up and how the price compares.