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Dreame L40s Ultra vs Dreame L50 Ultra

Key facts

Dreame L40s Ultra (Dreame; Shipping) and Dreame L50 Ultra (Dreame; Shipping) are both robot vacuums. Published figures: weight 4.1 kg (9 lb) vs 4.4 kg (10 lb); suction 19,000 Pa vs 19,500 Pa; runtime 220 min vs 200 min; robot height 97 mm (3.8 in) vs 97 mm (3.8 in); threshold climb 22 mm (0.9 in) vs 42 mm (1.7 in). Price: Dreame L40s Ultra US$1,399.99, US (official price); Dreame L50 Ultra US$1,399.99, US (official price). RankedRobot rank among robot vacuums & mops: Dreame L40s Ultra not ranked (new to the database: joins the ranking at the next monthly update (1 november 2026)), Dreame L50 Ultra =15 of 49 robot vacuums & mops (tied) (score 55.1, grade B). Disclosure: Dreame L40s Ultra has 28 sourced values (80% of tracked fields), Dreame L50 Ultra has 23 (72%).

Cite: RankedRobot, https://rankedrobot.com/compare/dreame-l40s-ultra-vs-dreame-l50-ultra/ (checked 2026-10-06) · Every figure below links to its source · Dreame L40s Ultra spec sheet · Dreame L50 Ultra spec sheet

SpecDreame L40s UltraDreame L50 Ultra
StatusShippingShipping
Price
US$1,399.99, US (official price) source
US$569.99, US (official store sale price) source
US$1,399.99, US (official price) source
Rank in categoryNot ranked=15 of 49 robot vacuums & mops (tied) · 55.1 · grade B
Launch
Announced
Not disclosedNot disclosedChecked: dreametech.com (2026-10-06)
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
Status
Body
Dimensions
Height 97 mm × Width 350 mm × Depth 350 mmManufacturerSource: dreametech.com (2026-10-06)
Length 348 mm × Width 352 mm × Height 97 mmManufacturerSource: dreametech.com (2026-10-02)
Weight
4.1 kg (9 lb)ManufacturerSource: dreametech.com (2026-10-06)
4.4 kg (10 lb)ManufacturerSource: dreametech.com (2026-10-02)
IP ratingNot tracked
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
Cleaning
Suction (as stated)
L40s Ultra:19,000 PaManufacturerSource: dreametech.com (2026-10-06)Conditions: maker in-house lab data; mode not statedMaker's figure is an "up to" value.
L40s Ultra AE:19,000 PaManufacturerSource: dreametech.com (2026-10-06)Conditions: maker in-house lab data; mode not stated
L40s Ultra CE:13,000 PaManufacturerSource: dreametech.com (2026-10-06)Conditions: not stated
19,500 PaManufacturerSource: dreametech.com (2026-10-02)Maker's figure is an "up to" value.
Navigation
Pathfinder™ Smart Navigation (LDS)ManufacturerSource: dreametech.com (2026-10-06)
Obstacle avoidance
L40s Ultra:Single-Laser 3D Structured LightManufacturerSource: dreametech.com (2026-10-06)
L40s Ultra AE:RGB AI + 3D Structured LightManufacturerSource: dreametech.com (2026-10-06)
L40s Ultra CE:Single-LaserManufacturerSource: dreametech.com (2026-10-06)
Camera ai · Structured lightManufacturerSource: dreametech.com (2026-10-02)
Mopping system
rotating_pads: dual spinning mopsManufacturerSource: dreametech.com (2026-10-06)
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
Mop lift height
10.5 mm (0.4 in)ManufacturerSource: dreametech.com (2026-10-06)
Not tracked
Robot height
97 mm (3.8 in)ManufacturerSource: dreametech.com (2026-10-06)
97 mm (3.8 in)ManufacturerSource: dreametech.com (2026-10-02)
Threshold climb
22 mm (0.9 in)ManufacturerSource: dreametech.com (2026-10-06)
42 mm (1.7 in)ManufacturerSource: dreametech.com (2026-10-02)Maker's figure is an "up to" value.
Dock
Dock features
Auto-empty · Mop washing · Hot-water mop wash · Hot-air drying · Auto refill · Detergent dispensing · Self cleanManufacturerSource: dreametech.com (2026-10-06)
Auto-empty · Mop washing · Hot-water mop wash · Auto refillManufacturerSource: dreametech.com (2026-10-02)
Mop-wash temperature
75 °C (167 °F)ManufacturerSource: dreametech.com (2026-10-06)
75 °C (167 °F)ManufacturerSource: dreametech.com (2026-10-02)Maker's figure is an "up to" value.
Dock bag
Clean-water tank
Dirty-water tank
Robot dustbin
Everyday use
Runtime
220 minManufacturerSource: dreametech.com (2026-10-06)Conditions: vacuuming mode under quiet suction (maker in-house lab test)Maker's figure is an "up to" value.
200 minManufacturerSource: dreametech.com (2026-10-02)Conditions: Quiet Mode, as stated on store pageMaker's figure is an "up to" value.
Noise
Not disclosedNot disclosedChecked: dreametech.com (2026-10-06)
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
Smart home
Not disclosedNot disclosedChecked: dreametech.com (2026-10-06)
Matter · Alexa · Siri · Google HomeManufacturerSource: dreametech.com (2026-10-02)
Warranty
Power
Battery
Not disclosedNot disclosedChecked: dreametech.com (2026-10-06)
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
RuntimeNot tracked
200 minManufacturerSource: dreametech.com (2026-10-02)Conditions: Quiet Mode, as stated on store pageMaker's figure is an "up to" value.
Charge time
Not disclosedNot disclosedChecked: dreametech.com (2026-10-06)
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
Hot-swappable battery
Not disclosedNot disclosedChecked: dreametech.com (2026-10-06)
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
Safety
CertificationsNot tracked
Not disclosedNot disclosedChecked: dreametech.com (2026-10-02)
Commercial
Regions sold

Confidence labels: Manufacturer = stated by the maker · Verified = independently confirmed · Reported = credible media or retailer, not confirmed by the maker · ⚠ Unconfirmed = leak or single source · Estimate = our calculation from official figures, method shown · Not disclosed = not published. We never guess missing figures. Add more robots to this comparison.

Quick answers

What is the difference between the Dreame L40s Ultra and the Dreame L50 Ultra?

Published figures: weight 4.1 kg (9 lb) vs 4.4 kg (10 lb); suction 19,000 Pa vs 19,500 Pa; runtime 220 min vs 200 min; robot height 97 mm (3.8 in) vs 97 mm (3.8 in); threshold climb 22 mm (0.9 in) vs 42 mm (1.7 in). Price: Dreame L40s Ultra US$1,399.99, US (official price); Dreame L50 Ultra US$1,399.99, US (official price).

Which is cheaper, the Dreame L40s Ultra or the Dreame L50 Ultra?

Price: Dreame L40s Ultra US$1,399.99, US (official price); Dreame L50 Ultra US$1,399.99, US (official price). Prices are shown exactly as published, never converted or estimated.

Which ranks higher, the Dreame L40s Ultra or the Dreame L50 Ultra?

RankedRobot rank among robot vacuums & mops: Dreame L40s Ultra not ranked (new to the database: joins the ranking at the next monthly update (1 november 2026)), Dreame L50 Ultra =15 of 49 robot vacuums & mops (tied) (score 55.1, grade B). Method: https://robot500.com/methodology/

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