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Dreame D20 vs. iRobot Roomba Plus 415 compared
Robot Vacuum
At a glance
The key numbers for both devices side by side.
Overall rating
5959Schwach
6262Solide
Value for money
59Okay
47Okay
Best price
€149.79
€299.00€499.00−40 %
Price advantage
€149.21 cheaper
—
Offers
3 shops
1 shop
Rank in category
Rank 69 of 78
Rank 66 of 78
Rating
Sub-ratings compared
Dreame D20Overall rating 59iRobot Roomba Plus 415Overall rating 62
Dreame D20iRobot Roomba Plus 415
Suction performance77/10066/100
Mopping performance42/10070/100
Navigation & obstacles54/10048/100
Dock & maintenance38/10072/100
App & ease of use78/10056/100
Noise & build quality66/10062/100
Suction performance
77
66
Mopping performance
42
70
Navigation & obstacles
54
48
Dock & maintenance
38
72
App & ease of use
78
56
Noise & build quality
66
62
Specs
Specs compared
Key specs
Brand
Model
D20
Roomba Plus 415
Suction powerMaximum suction power according to the manufacturer in pascals. Manufacturer figures are only roughly comparable across brands.
13,000 Pa
20,000 Pa
NavigationMapping technology: LiDAR laser turret, camera (vSLAM) or gyroscope without a map – some robots combine LiDAR and camera.
LiDAR laser
LiDAR laser
Obstacle detectionTechnology for detecting objects on the floor (cables, socks, pet waste). A bumper alone counts as None.
None (bumper only)
Structured light (line laser)
Mopping systemType of mopping module on the robot according to the manufacturer.
Passive drag mop
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.
Charging dock only
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).
285 min
300 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
HeightTotal height including laser turret according to the manufacturer; determines whether it fits under furniture.
9.69 cm (3.8 in)
8.35 cm (3.3 in)
Suction & brushes
Suction levelsNumber of selectable suction levels in the app or on the robot.
5 levels
4 levels
Carpet detection with suction boostDetects carpet and automatically increases suction power there.
Yes
Main brushType of main brush in the suction inlet, not the side brush.
Dual roller
Rubber roller
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.
No
Yes
Filter typeHighest filter grade of the robot specified by the manufacturer.
HEPA 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
Robot dustbinVolume of the dustbin in the robot, not in the dock.
0.7 l (0.18 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.
0 mm (0 in)
10 mm (0.39 in)
Mopping module featuresOnly check features the manufacturer lists for this model.
Active water supply
Liftable mopping moduleExtendable mopping moduleCarpet detection when mopping
Robot water tankWater tank in the robot, not in the dock.
0.35 l (0.09 gal)
Mop washing in the dockHow the dock washes the mop pads; without a mop-washing dock, choose No mop washing.
No mop washing
Hot water
Mop washing temperatureMaximum water temperature for mop washing according to the manufacturer; leave blank for cold water.
45 °C (113 °F)
Hot-air mop dryingThe dock actively dries the pads with hot air, not just by ventilation.
No
Yes
Base station
Dock featuresOnly check features of the included dock.
Cold water tank refill
Auto-empty dockThe dock empties the robot’s dustbin by suction, also as part of an auto-empty & wash dock.
No
Yes
Dock dust collectionHow the dock collects dust.
No auto-empty
With dust bag
Dock clean water tankClean water tank of the dock, not the robot.
3.6 l (0.95 gal)
Dock dirty water tankDirty water tank of the dock.
3.1 l (0.82 gal)
Dock dimensionsWidth × depth × height of the dock in cm according to the manufacturer.
12.6 × 13 × 9.3 cm (5 × 5.1 × 3.7 in)
33 × 33 × 48.5 cm (13 × 13 × 19 in)
Battery & operation
Battery capacityRated battery capacity according to the manufacturer.
5,200 mAh
5,200 mAh
Charging timeCharging time from empty to full according to the manufacturer.
360 min
240 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.
No
No
Savable floor mapsNumber of maps that can be saved at the same time according to the manufacturer.
3
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.
No
No
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 AlexaSiriGoogle Assistant
Amazon AlexaGoogle AssistantSiri
Dimensions & weight
Threshold heightMaximum threshold height the robot can climb according to the manufacturer.
2 cm (0.79 in)
2.5 cm (0.98 in)
DiameterMaximum width of the robot according to the spec sheet.
35 cm (14 in)
30.3 cm (12 in)
Robot weightWeight of the robot without the dock.
3.51 kg (7.7 lb)
2.9 kg (6.4 lb)
General
Warranty
2 years
Price segment
Budget
Mid-range
Model year
2025
2026
In the box
Saugroboter, Ladestation, Hauptbürste, Seitenbürste, Staubbehälter, Wassertank, Wischpad, Wischpadhalter, Anleitungen
Roboter, AutoWash-Station, 2 Paar DualClean-Wischpads, Eck- und Kantenbürste, 2 AllergenLock-Beutel
Prices
Offers
Verdict
Pros & cons
Der Dreame D20 ist ein kräftiger Sauger für Tierhaushalte mit Laser-Navigation und Doppelwalze, die Haarknäuel weitgehend verhindert. Die 285 min Laufzeit und der 0,7 l große Behälter reichen auch für große Wohnungen. Der Haken: keine Absaugstation, keine Hinderniserkennung – du leerst von Hand und räumst vorher auf, und das mitgezogene Tuch frischt nur auf statt zu wischen.
Pros
- Doppelwalze mit Anti-Haar-Technik aus teureren Dreame-Modellen
- Hohe Saugkraft von 13000 Pa laut Hersteller
- Großer Staubbehälter mit 0,7 l für seltenes Leeren
- Laser-Navigation mit Raumkarten, Sperrzonen und Zeitplänen
- Lange Laufzeit bis 285 min, auch für über 100 m²
- Sprachsteuerung per Alexa, Siri oder Google Assistant
Cons
- Nur Ladestation, der Staubbehälter wird von Hand geleert
- Passives Wischtuch entfernt keine eingetrockneten Flecken
- Wischpad hebt sich über Teppich nicht an
- Keine Hinderniserkennung, Kabel und Socken werden eingesaugt
- Lange Ladezeit von 360 min, Seitenbürste fährt nicht aus
Der iRobot Roomba Plus 415 ist ein flacher Saug-Wisch-Roboter für kleine Wohnungen mit Hartboden: Er wischt frische Flecken in einem Durchgang weg, reinigt bis an die Fußleiste und passt mit 8,35 cm unter niedrige Sofas. Der Haken: Ohne Objekterkennung verfängt er sich in Kabeln und schiebt Spielzeug vor sich her. Lohnt sich, wenn du vor dem Start kurz aufräumst.
Pros
- Wischt frische Flecken wie Grillsoße in einem Durchgang ohne Schlieren
- Reinigt Ecken und Kanten dank ausfahrender Seitenbürste und Wischpad
- Mit 8,35 cm Bauhöhe passt er unter niedrige Sofas und Betten
- Station wäscht Pads und trocknet sie mit 45 °C warmer Luft
- Kompakte Station mit 33 x 33 cm Grundfläche
- Gründliche Staubaufnahme auf Laminat und Fliesen
Cons
- Keine Objekterkennung: verfängt sich in Kabeln und schiebt Spielzeug mit
- Lange Haare wickeln sich trotz Gummiwalze um die Bürste
- Nur mittelmäßige Schmutzaufnahme auf Teppich
- Kleiner Staubbehälter im Roboter, voll saugt er kaum noch
- App-Kopplung gelingt oft erst nach langem Probieren
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