- Suction
- 19,000 Pa claimed
- Navigation
- LDS LiDAR
- Mopping
- Dual spinning mops
- Runtime
- Up to 220 min in quiet
Two quick taps and get the right robot for them, with today's price.
Dreame L40s Ultra
Strong pet hair cleaner with a full dock at a deep discount
Researched by Riley Hart · updated Oct 30, 2026
Is the Dreame L40s Ultra worth it? The best carpet and pet hair performer of the L40s range, with a hot water mop dock, now far below its $1,399.99 launch price. It costs $570 as of Oct 31, 2026, and Vacuum Chef scored it 95/100.
The best carpet and pet hair performer of the L40s range, with a hot water mop dock, now far below its $1,399.99 launch price. Vacuum Wars measured 92% sand removal and 91% pet hair pickup with no tangles. Skip it if your floors are cluttered, since it avoided only 7 of 24 objects.
Best for: pet owners with carpet on a budget. Skip if: your floor often has cables, socks or toys.
Specs
- Suction
- 19,000 Pa claimed (Dreame); Vacuum Chef measured 490 FPM carpet airflow, well above average
- Navigation
- LDS LiDAR with Pathfinder, 4 maps (Dreame); Vacuum Wars measured 0.85 m2 per minute
- Obstacle avoidance
- 3D structured light only, no camera or object count (Dreame); Vacuum Wars saw it avoid 7 of 24 objects
- Mopping
- Dual spinning mops, 10.5 mm lift, extend and auto removal (Dreame); Vacuum Wars measured 0.95 g water left and a 259 combined mop score
- Self empty
- Yes, 3.2 L dust bag, up to 100 days (Dreame)
- Dock features
- Auto empty, 167 F (75 C) hot water mop wash, hot air drying, self cleaning washboard, auto detergent and water refill, 4.5 L clean and 4.0 L dirty tanks; water hookup kit sold separately (Dreame)
- Runtime
- Up to 220 min in quiet mode from 5,200 mAh (Dreame); Vacuum Wars estimated about 1,935 sq ft per charge
- Dustbin
- 310 ml robot bin plus 3.2 L dock bag (Dreame)
3 year cost of ownership
- Robot
- $570
- Total
- $570
Bag, filter and pad prices are not listed on the product page, so no 3 year cost is given.
Status and safety
- US availability
- ● On sale
- Recalls
- ● No Dreame robot recall in the CPSC database as of Oct 31, 2026. Checked daily.
- FCC authorized
- Not checked
- Company
- ● Active
- Warranty
- ● 3 years (Dreame US store)
Price history
Tracked dailyTracking started Oct 31, 2026 at $570.
Each day adds a point. Turn on a price alert to hear about drops.
Where to buy
- Amazon
- See price →
- Dreame US store
- $570 →
Affiliate links. We may earn a commission. It never changes our score. Disclosure
Pros
- 92% carpet sand removal in Vacuum Wars testing
- 91% pet hair pickup, no tangles
- Extending side brush and mop
- Mop pads detach before carpet
- Deep discount from launch price
Cons
- Avoided only 7 of 24 obstacles
- No camera
- Loud at max, 78 dB in Vacuum Chef testing
- No built in voice assistant
- Bulky base station
What independent reviewers found
- 92% carpet sand removal, 91% pet hair pickup and 0% hair wrap with the DuoBrush, about 1,935 sq ft per charge, but only 7 of 24 obstacles avoided.
- Vacuum Wars · 3.51 Vacuum Wars stars
- Scored 95/100 in its real world cleaning tests, measured 490 FPM carpet airflow and 78 dB at max suction. Obstacle avoidance varied by floor and object.
- Vacuum Chef · 95/100
Spec history
Checked dailyNo spec changes since we started tracking on Oct 31, 2026.
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Questions buyers ask
Is it good for pet hair?
Yes. Vacuum Wars measured 91% pet hair pickup and no hair wrap with the DuoBrush.
Does it avoid obstacles well?
No. It has no camera and avoided 7 of 24 objects in Vacuum Wars testing.
Does it climb thresholds?
Dreame rates it for 0.87 in single steps and 1.57 in double layer steps.
Guides and rankings with the Dreame L40s Ultra
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