Dreame L40 Ultra: Specs, Features, Pros & Cons

Editor’s note

The L40 Ultra is Dreame's mid-flagship, and it carries most of the expensive features at a noticeably lower price.

Automatic mop removal is the headline: the dock detaches the pads before the machine goes to vacuum carpet, so the carpet stays dry — the cleanest solution to the mixed-floor problem, and normally reserved for the tier above. Add automatic detergent dosing, pad washing at 65°C, dirt detection that re-mops a dirty patch, and an extending edge arm for corners, and the feature list reads like a flagship's.

Suction is 11,000 Pa through a TriCut anti-tangle rubber brush, with a 10.5 mm mop lift and 194 minutes from a 5,200 mAh battery. The pads are removable, the filter washable, and the bin holds 300 ml.

Two compromises mark where the money was saved. Navigation is a fixed LDS LiDAR turret, with a camera and structured light for obstacles and an LED light Dreame says lets it navigate in the dark. And at 103.8 mm it is among the taller machines here, so low furniture is out — measure before ordering.

Threshold clearance is 22 mm, so raised door saddles will still stop it, and no HEPA filter is listed.

Buy it if you want automatic mop removal and a self-servicing dock without paying flagship money, at a mid-range price. Buy the X50 Ultra if you need the climbing and the hotter wash.