Name: Dreame L40 Ultra Gen 2
Brand: Dreame
Price: 569.98 USD

A low-cost full self-cleaning dock with edge-reaching brush and mops, for homes with mostly hard floors and few clutter hazards.

Price checked October 26, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Self-cleaning dock that empties the bin, washes the mops in hot water and dries them for under $600
Side brush and mop pads swing out to reach along walls and into corners
Mops lift 10.5 mm on carpet, so rugs stay dry
Runs up to about 3.8 hours on a charge in its quietest vacuum mode
3-year warranty

Cons

Line-laser obstacle avoidance without a camera can miss small objects such as cables and socks
Climbs thresholds of only 0.8 in
Automatic detergent dosing needs an extra module
Can’t leave its mop pads at the dock, so it relies on the 10.5 mm lift over thick rugs

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.

Cleaning not yet tested; estimated from 12 tested Dreame robots and the median of the 70 tested robots73
Value $57070
Dock Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying94
Navigation LiDAR + 3D light85
Mopping Dual spinning pads, lifts 10.5 mm, extends to edges76

Specifications

Vacuum
Claimed suction	25,000 Pa
Main brush	Rubber brush (TriCut brush optional)
Dustbin	250 mL
Extending side brush	Yes
Mopping
Mop	Dual spinning pads, lifts 10.5 mm, extends to edges
Mop lift	10.5 mm
Leaves mop at dock	No
Extending mop	Yes
Dock
Dock	Washes mop + empties
Self-empties	Yes
Dust bag	3.2 L
Washes mop	Yes
Hot-water wash	Yes
Hot-air drying	Yes
Detergent dosing	No
Clean water tank	4.5 L
Navigation & app
Navigation	LiDAR + 3D light
Obstacle avoidance	3D structured light (3DAdapt)
Climbs thresholds	20 mm
Matter	Yes
Voice assistants	Alexa, Siri, Google Home
Build
Height	3.8 in (97 mm)
Retracting LiDAR	No
Battery	5,200 mAh
Run time	Up to 3 h 51 min
Weight	8.8 lb (4 kg)
Warranty	3 years
Released	2025-12

For homes that mop several kinds of floor and want a separate pad for each room without swapping them by hand.

$849

A well-equipped roller-mop robot for pet homes on a mid-range budget, with dual cleaning solutions and a camera for checking in on pets.

$663.45

A budget self-cleaning robot for small, mostly hard-floor homes. Carpet-heavy homes need more suction than its 11,000 Pa.

$499.99