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Dreame L40s Pro Ultra vs. Roborock Saros Z70 compared
Robot Vacuum
At a glance
The key numbers for both devices side by side.
Overall rating
8383Gut
8383Gut
Value for money
85Excellent
74Fair
Best price
€499.00€749.00−33 %
€719.00€949.00−24 %
Price advantage
€220.00 cheaper
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Offers
2 shops
3 shops
Rank in category
Rank 19 of 78
Rank 20 of 78
Rating
Sub-ratings compared
Dreame L40s Pro UltraOverall rating 83Roborock Saros Z70Overall rating 83
Dreame L40s Pro UltraRoborock Saros Z70
Suction performance84/10080/100
Mopping performance90/10090/100
Navigation & obstacles70/10085/100
Dock & maintenance87/10088/100
App & ease of use80/10090/100
Noise & build quality70/10082/100
Suction performance
84
80
Mopping performance
90
90
Navigation & obstacles
70
85
Dock & maintenance
87
88
App & ease of use
80
90
Noise & build quality
70
82
Specs
Specs compared
Key specs
Brand
Model
L40s Pro Ultra
Saros Z70
Suction powerMaximum suction power according to the manufacturer in pascals. Manufacturer figures are only roughly comparable across brands.
19,000 Pa
22,000 Pa
NavigationMapping technology: LiDAR laser turret, camera (vSLAM) or gyroscope without a map – some robots combine LiDAR and camera.
LiDAR laser
LiDAR laserCamera (vSLAM)
Obstacle detectionTechnology for detecting objects on the floor (cables, socks, pet waste). A bumper alone counts as None.
Structured light (line laser)AI camera
AI cameraStructured light (line laser)
Mopping systemType of mopping module on the robot according to the manufacturer.
Rotating mop pads
Rotating mop pads
Dock typeDock included: an auto-empty dock only empties the dust, a mop-washing dock washes the mops, an auto-empty & wash dock does both. Docks sold separately don’t count.
Auto-empty & wash dock
Auto-empty & wash dock
Battery lifeRuntime in standard or quiet mode according to the manufacturer, not at max. setting (that’s listed under Battery & operation).
180 min
180 min
Noise levelSound pressure level in standard mode according to the manufacturer, not at the highest suction setting (that’s listed under Suction & brushes).
74 dB
61 dB
HeightTotal height including laser turret according to the manufacturer; determines whether it fits under furniture.
10.35 cm (4.1 in)
7.98 cm (3.1 in)
Suction & brushes
Suction levelsNumber of selectable suction levels in the app or on the robot.
5 levels
Carpet detection with suction boostDetects carpet and automatically increases suction power there.
Yes
Yes
Main brushType of main brush in the suction inlet, not the side brush.
Dual roller
Bristle brush
Anti-tangle brushMain brush with a comb or anti-tangle design according to the manufacturer.
Yes
Yes
Extendable side brushThe side brush actively extends along edges and into corners.
Yes
No
Filter typeHighest filter grade of the robot specified by the manufacturer.
HEPA filter
Fine dust filter
Noise level at max. settingSound pressure level at the highest suction setting according to the manufacturer. Standard mode is listed under Key specs.
74 dB
65 dB
Robot dustbinVolume of the dustbin in the robot, not in the dock.
0.3 l (0.08 gal)
0.18 l (0.05 gal)
Mopping
MoppingThe robot can mop, whatever the system. Details under Mopping.
Yes
Yes
Mop lift on carpetLift height of the mopping module over carpet according to the manufacturer in millimeters; 0 = cannot be lifted.
10.5 mm (0.41 in)
22 mm (0.87 in)
Mopping module featuresOnly check features the manufacturer lists for this model.
Liftable mopping moduleExtendable mopping moduleAuto-detaching mop padsCarpet detection when mopping
Active water supplyLiftable mopping moduleExtendable mopping moduleAuto-detaching mop padsCarpet detection when mopping
Robot water tankWater tank in the robot, not in the dock.
0.08 l (0.02 gal)
0.069 l (0.02 gal)
Mop washing in the dockHow the dock washes the mop pads; without a mop-washing dock, choose No mop washing.
Hot water
Hot water
Mop washing temperatureMaximum water temperature for mop washing according to the manufacturer; leave blank for cold water.
75 °C (167 °F)
80 °C (176 °F)
Hot-air mop dryingThe dock actively dries the pads with hot air, not just by ventilation.
Yes
Yes
Base station
Dock featuresOnly check features of the included dock.
Cold water tank refillRefillable detergent tankDirty water detection
Hot water tank refillRefillable detergent tankDirty water detection
Auto-empty dockThe dock empties the robot’s dustbin by suction, also as part of an auto-empty & wash dock.
Yes
Yes
Dock dust collectionHow the dock collects dust.
With dust bag
With dust bag
Dock dust capacityCapacity of the dust bag or collection bin in the dock.
3.2 l (0.85 gal)
2.5 l (0.66 gal)
Dock clean water tankClean water tank of the dock, not the robot.
4.5 l (1.2 gal)
4 l (1.1 gal)
Dock dirty water tankDirty water tank of the dock.
4 l (1.1 gal)
3 l (0.79 gal)
Dock dimensionsWidth × depth × height of the dock in cm according to the manufacturer.
34 × 45.7 × 59.7 cm (13 × 18 × 24 in)
38.1 × 47.5 × 48.8 cm (15 × 19 × 19 in)
Battery & operation
Battery capacityRated battery capacity according to the manufacturer.
5,200 mAh
6,400 mAh
Charging timeCharging time from empty to full according to the manufacturer.
210 min
150 min
Recharge and resumeRecharges when the battery runs out and resumes cleaning where it left off.
Yes
Yes
Navigation & app
AI obstacle detectionDetects cables, socks, pet waste, etc.
Yes
Yes
No-go zones and virtual wallsRestricted areas can be set in the app; magnetic strips don’t count.
Yes
Yes
Room selection and schedulesIndividual rooms can be cleaned selectively and on a schedule.
Yes
Yes
Live camera in the appLive view from the robot’s camera in the app according to the manufacturer.
Yes
Yes
Voice controlCan be started with a voice assistant. The exact assistants are listed under Navigation & app.
Yes
Yes
Voice assistantsVoice assistants officially supported by the manufacturer.
Amazon AlexaGoogle AssistantManufacturer’s own assistant
Amazon AlexaGoogle AssistantSiriMatterManufacturer’s own assistant
Chassis & sensor extrasOnly check special features that come as standard.
Climbing assistLED lightDirt detection
Chassis liftRobotic armLED lightDirt detection
Dimensions & weight
Threshold heightMaximum threshold height the robot can climb according to the manufacturer.
4 cm (1.6 in)
4 cm (1.6 in)
DiameterMaximum width of the robot according to the spec sheet.
35 cm (14 in)
35.3 cm (14 in)
Robot weightWeight of the robot without the dock.
4.23 kg (9.3 lb)
4.9 kg (11 lb)
General
Warranty
1 years
2 years
Price segment
Mid-range
Premium
Model year
2025
2025
In the box
Roboter, Saug-Waschstation, 2 Staubbeutel, Seitenbürste, Doppelbürste, 2 Wischmodule mit Pads, Reinigungstool, Reinigungsmittel, Rampe
Roboter, Station mit Basis, Aufbewahrungsbox, Moppträger mit Wischtüchern, Einweg-Staubbeutel, Netzkabel, Handbuch
Prices
Offers
Verdict
Pros & cons
Der Dreame L40s Pro Ultra ist ein Saug-Wisch-Roboter mit Komplettstation, der auf Hartboden und Kurzflor fast restlos sauber macht. Seine Doppelwalze wickelt kaum Haare auf, Tierkot umfährt er zuverlässig – damit ist er eine starke Wahl für Tierhalter. Der Haken: Auf Hochflor bleibt viel Schmutz liegen, und an Schwellen ab 2 cm brauchst du die App als Hilfe.
Pros
- Holte in Tests 98,72 von 100 g Schmutz vom Laminat
- Doppelwalze wickelt auch lange Tierhaare kaum auf
- Entfernt Flecken samt Kaffee schlierenfrei, ausfahrbares Pad reinigt Kanten
- Station saugt ab, wäscht die Pads warm und trocknet sie
- Umfuhr in Tests beide Hundehaufen vollständig
- Ausfahrbare Seitenbürste holt Schmutz aus Ecken
Cons
- Auf Hochflor nur rund 23 von 100 g Schmutz aufgenommen
- Navigation auf Langflor ohne erkennbares Muster
- Scheiterte ohne App-Hilfe schon an 2 cm hohen Schwellen
- Station braucht rund 34 x 46 x 59 cm Stellfläche
- Nur 1 Jahr Garantie
Der Roborock Saros Z70 ist ein sehr gründlicher Saug- und Wischroboter mit starker Station, die Mopps heiß wäscht und den Roboter selbst leert. Auf Hartboden saugt er nahezu restlos, und mit 7,98 cm Bauhöhe kommt er unter viele Sofas. Der Greifarm räumt Socken und Tücher bis 300 g auf, ist aber eher Ausblick als Alltagshilfe. Hast du viel Teppich mit Tierhaaren, lässt er auffällig viele Haare liegen.
Pros
- Saugt auf Hartboden nahezu restlos, in Tests 99,88 von 100 g
- Nur 7,98 cm hoch, reinigt unter niedrigen Sofas und Betten
- Gute Wischleistung bis direkt an die Fußleiste dank ausfahrbarem Mopp
- Station wäscht Mopps mit 80 °C und trocknet mit Warmluft
- Überwindet im Test glatte Schwellen bis 3,1 cm
- Greifarm räumt Socken und Handtücher bis 300 g in die Box
Cons
- Schwache Haaraufnahme auf Teppich, in einem Test blieben 0,87 von 1 g liegen
- Greifarm langsam, erkennt nur bekannte Objekte und legt nicht immer zuverlässig ab
- Staubbehälter im Roboter fasst nur 0,18 l
- Kein fester Wasseranschluss, beide Tanks bleiben Handarbeit
- Knapper Lieferumfang ohne Reinigungsmittel, Ersatzbürsten oder Zusatzmopps
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