Dreame X40 Ultra Complete Robot Vacuums - Review and opinions

Key features

Edge and Corner Reach

The liftable, extendable side brush is the kind of detail that matters once a robot starts running along baseboards, chair legs, and tight corners.

It is a practical advantage for homes where dust collects in places a round robot usually misses, and it helps the machine feel more complete in everyday use.

Carpet Protection

The removable mop and 10.5 mm lift keep the wet side of cleaning from ruining carpet runs.

That is a meaningful buying point for mixed-floor homes, because it reduces the chance of damp rugs and awkward cleanup after a mopping session.

Self-Maintaining Dock

The dock handles dust emptying, water refilling, mop washing, and drying, with hot-water cleaning for the mop and washboard.

This is the feature that turns the X40 Ultra Complete from a regular robot into a low-touch floor-care system, but it also creates a larger, more complex base to live with.

User experience

In a home with hard floors that collect daily dust and kitchen spillover, the X40 Ultra Complete makes its case fast because it combines vacuuming and mopping without turning every run into a chore. The 12,000Pa suction and the liftable side brush give it the kind of reach that matters around furniture legs, wall edges, and corners, while the removable mop keeps carpet care from turning into a wet-floor problem. That combination is the real attraction: one robot can cover the routine sweep and the damp cleanup without forcing you to babysit every room.

On mixed flooring, the practical question is whether the mop behavior gets in the way of carpet use, and this model is built around avoiding that friction. The mop can lift to 10.5 mm, and the app lets you set no-go zones around rugs, which makes it easier to trust in homes where hard floors and carpet overlap. That matters more than a headline suction number alone, because a robot that cleans well but drags moisture where it does not belong quickly becomes annoying. Here, the trade-off is clear: you are paying for smarter floor transitions, not just raw pickup power.

The dock is where the convenience story either wins or loses, and this one is fully loaded. It washes the mop and washboard with 158°F hot water, refills water automatically, empties dust, and dries itself, which cuts down on the gross part of owning a mop robot. The upside is obvious for busy households and pet owners; the downside is that the dock is doing a lot, so the system makes the most sense when you are willing to give it space and live with a more involved maintenance station than a simple emptying base.

Features like 3D structured light, a built-in camera, and LED lighting make the X40 Ultra Complete more than a brute-force cleaner. In a daily-run home, that usually translates into steadier navigation around furniture and fewer interruptions when the floor layout changes a little from day to day. The app control also matters here, because the real benefit is not just remote start, but being able to tune room-by-room cleaning, wetness, and pet zones without turning setup into a project. If your house is straightforward and you only want a basic sweep, the extra intelligence is less valuable; if your layout is busy, it earns its keep.