dreame L40 Ultra Gen 2
Top PickWhat We Like
- Extending brush and mop reach corners
- Washes and hot-air dries its own mop
- Longest runtime in this set
- Mop lifts 10.5mm over rugs
Worth Noting
- Bulky dock needs clear floor space
- Premium tier against the cheaper picks
- Dock
- Self-empty, mop wash, hot-air dry
- Runtime
- 231 minutes
- Suction
- 25,000Pa
- Mop Lift
- 10.5mm
The detail that sold us on the L40 Ultra Gen 2 is the arm. Its side brush and mop both extend outward, so the machine reaches the last inch along baseboards and into corners instead of tracing a tidy circle in the middle of the room. None of the others here reach it, and that gap — the fine grey line of dust along a skirting board — is exactly what makes a robot vacuum feel like a compromise. It also carries the biggest suction figure in this group at 25,000Pa and the longest runtime at 231 minutes.
The dock does the rest. It empties the bin into a bag, washes the mop pads, dries them with hot air, and refills the water tank, so a normal week means walking past it rather than servicing it. The mop assembly lifts 10.5mm when it crosses a rug, which is the difference between mopping a kitchen and leaving a wet stripe across the living room carpet.
Navigation holds up in a lived-in house. It builds a map, uses 3DAdapt obstacle avoidance to steer around shoes and clutter rather than bulldozing them, and the carpet modes let you keep the mop off the rug entirely. Five suction levels is more choice than most homes need; we kept it in the middle for daily runs and pushed it up for the weekly pass.
What it costs you is space and money. The dock is bulky and wants clear floor in front of it, and this sits firmly in the premium tier of this group before you buy a single bag. If your rooms are mostly hard floor with a couple of rugs, that's a fair trade. If the house is wall-to-wall deep pile, put the money into an upright and let this one handle the daily dust.
Bottom line: This is the one we point most people to: it reaches the corners the others miss, cleans its own mop, and runs longer than anything else here.