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The Dreame X40 Ultra is a self-emptying robot vacuum and mop with 12,000Pa suction, a 6,400mAh battery rated for 180 minutes, and a dock that washes the mop with 70°C hot water. Its mop lifts 10.5 mm or detaches to keep carpets dry, and a side brush extends into corners. Navigation uses 3D structured light plus an onboard camera and LED lights. At $549.99 at Walmart as of November 7, 2026, it sits well below its launch pricing and among the lowest prices seen for this model.
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Lowest price we've seen: $539.99 on Nov 7 at Dreame. Tracked across 4 stores since Nov 7.
Rated 4.1 out of 5 from 156 ratings, the X40 Ultra is generally liked for its cleaning power and self-maintaining dock. Complaints center on noise, size and occasional app or navigation quirks.
About this product: The adjustable side brush effortlessly cleans corners and furniture legs, thoroughly removing dirt. The X40 Ultra mop protects carpets from moisture by detaching or automatically raising to a height of 10.5 mm (0.41 inches). Industry-leading 12,000Pa* suction power effectively removes hair, dust, and debris for a cleaner home. The X40 Ultra detects stubborn stains and deep cleans under low furniture and in corners. Simultaneously cleans the mop and mop board with 70°C hot water to effectively eliminate stains and odors. Equipped with 3D structured light, an onboard camera, and LED lights, the X40 Ultra navigates your home intelligently around the clock. The X40 Ultra features a 6400mAh high-capacity battery for longer, more efficient cleaning performance. After charging, it automatically returns to the charging dock and resumes cleaning once fully charged. We recommend charging during off-peak hours* to save on electricity costs.
