Ultimate Robot Vacuum Showdown 2025: Roomba Combo J9+ vs Roborock S9 MaxV Ultra vs Deebot X2 Omni
Roomba Combo J9+ uses a single mop pad on an auto-retract arm with Dry Rug Intelligence that lifts the pad completely off carpet to keep rugs dry, and its Clean Base dock empties into a disposable bag for about 60 days and refills the 210 ml water tank, but it does not auto-wash the mop pad. Roborock S9 MaxV Ultra (Saros 10) delivers 22,000 Pa max suction, uses VibraRise 4.0 with up to 4,000 vibrations per minute and up to 20 mm mop lift, and its Ultra dock washes and dries the mop while refilling water (battery 5,200 mAh; about