Device profile · Specifications & compatibility
Dreame L40s Ultra
Dreame · Robot Vacuums · Model RLL22SE
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- Dreame L40s Ultra lists Suction Power: 19000Pa; Auto Mop Washing; Battery Life: 220 minutes.
- This is a manufacturer rating, not a measured cleaning result.
- Compare the operating mode and test conditions alongside the number.
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- Recorded year
- 2025
- Recorded warranty
- 3 years
The details that shape your choice
Dreame L40s Ultra Quick Features
Start with these specifications, then check the full details and conditions below.
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From specification to decision
Dreame L40s Ultra: Capabilities And Limitations
Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.
What it offers
A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.
View Home Assistant details →Obstacle detection is listed, providing an avoidance feature to check against the objects in your rooms. Check the minimum detectable object size and the manufacturer’s exclusions.
View Obstacle Detection details →Self-emptying is listed, offering a way to transfer collected dust into a dock between cleanups. Check whether the emptying dock is included and which bags or filters it needs.
View Self Emptying details →
What to consider
Matter is listed as unsupported; check another documented integration if Matter is essential to your setup.
View Matter details →Apple Home support is listed as unavailable; do not assume the device appears directly in Apple Home.
View Apple Home details →
Still needs verification
Confirm these details if they matter to your setup.
Questions About Dreame L40s Ultra
What suction power does Dreame L40s Ultra specify?
The advertised maximum suction pressure is 19,000 Pa. This manufacturer figure does not establish real-world pickup or comparative cleaning performance. This is a manufacturer rating, not a measured cleaning result. Compare the operating mode and test conditions alongside the number.
Source: Dreame L40s Ultra manufacturer product page · Checked 2026-10-04
View Suction Power specifications →Does Dreame L40s Ultra wash its mop automatically?
Yes, according to the listed specifications. Check the required dock, included equipment and any manual cleaning or water-tank maintenance.
View Auto Mop Washing specifications →What is the battery runtime of Dreame L40s Ultra?
Battery Life: 220 minutes. Check the stated workload and conditions. A catalog runtime is not a prediction of runtime in your installation.
View Battery Life specifications →Does Dreame L40s Ultra work with Home Assistant?
Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.
View Home Assistant specifications →Explore the full picture
Dreame L40s Ultra Specifications
Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.
1 of 37 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →
Features7 fields
| Onboard Dustbin Capacity | 310ml |
|---|---|
| Self Emptying | Yes |
| Dock Dustbin Capacity | 3.2L |
| Noise Level | Not recorded |
| Real Time Tracking | Yes |
| Scheduling | Yes |
| Child Lock | Yes |
Mopping7 fields
| Mopping | Yes |
|---|---|
| Water Tank Capacity | 4.5L |
| Detergent Compatibility | Yes |
| Auto Detergent Dispenser | Yes |
| Auto Mop Washing | Yes |
| Auto Mop Drying | Yes |
| Auto Mop Lifting | Yes |
Connectivity6 fields
| 2.4 GHz Wi-Fi | Yes |
|---|---|
| 5 GHz Wi-Fi | No |
| Bluetooth | No |
| Z Wave | No |
| Zigbee | No |
| Thread | No |
Integrations6 fields
| Google Home | Yes |
|---|---|
| Alexa | Yes |
| Apple Home | No |
| SmartThings | No |
| Home Assistant | Yes |
| Matter | No |
Power3 fields
| Battery Life | 220 minutes |
|---|---|
| Charging Time | 3.5 hours |
| Auto Recharge | Yes |
Suction Performance3 fields
| Suction Power | 19000PaManufacturer sourceThe advertised maximum suction pressure is 19,000 Pa. Dreame L40s Ultra manufacturer product page →
This manufacturer figure does not establish real-world pickup or comparative cleaning performance. Document check only; not a hands-on test or verification of every regional or firmware variant. |
|---|---|
| Carpet Cleaning | Yes |
| Side Brushes | Yes |
How this device compares
Dreame L40s Ultra vs Other Similar Models
Statistical context from 159 robot vacuums in this catalog. These figures describe our recorded data, not independent measurements.
Recorded feature coverage
Auto Mop Drying: 116 of 156 known answers are Yes
Mopping: 74% among explicit Yes/No answers; 3 of 159 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Auto Mop Washing: 116 of 156 known answers are Yes
Mopping: 74% among explicit Yes/No answers; 3 of 159 devices have no resolved answer. Check the specifications for this model’s conditions.
Recorded feature coverage
Auto Mop Lifting: 118 of 155 known answers are Yes
Mopping: 76% among explicit Yes/No answers; 4 of 159 devices have no resolved answer. Check the specifications for this model’s conditions.
Brand representation in this directory
26 of 159 models are from Dreame
Counts robot vacuums listed here, not sales or market share. Catalog inclusion does not imply a recommendation.
Side-by-side specification comparison
Compare Dreame L40s Ultra vs Similar Robot Vacuums
See how Dreame L40s Ultra stacks up against other robot vacuums in this catalog. Compare specifications, compatibility and pricing.
Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.