Select and compare
Dolphin E40i vs. WYBOT C2 compared
Robotic Pool Cleaner
At a glance
The key numbers for both devices side by side.
Overall rating
8282Gut
8181Gut
Value for money
74Fair
83Excellent
Best price
€1,099.00
€605.99
Price advantage
—
€493.01 cheaper
Offers
2 shops
3 shops
Rank in category
Rank 14 of 45
Rank 16 of 45
Rating
Sub-ratings compared
Dolphin E40iOverall rating 82WYBOT C2Overall rating 81
Dolphin E40iWYBOT C2
Cleaning results76/10086/100
Navigation & reliability74/10071/100
Runtime & endurance76/10075/100
Handling & maintenance68/10080/100
App & build quality76/10079/100
Cleaning results
76
86
Navigation & reliability
74
71
Runtime & endurance
76
75
Handling & maintenance
68
80
App & build quality
76
79
Specs
Specs compared
Key specs
Brand
Model
E40i
C2
Cleaning coverageAreas the robot cleans according to the manufacturer – only with walls and waterline is no dirt ring left; top models also skim leaves from the surface, pure skimmers clean only the surface
FloorWallsWaterline
FloorWallsWaterline
Max. pool areaLargest pool area according to the manufacturer in m² – some manufacturers state only the pool length instead
200 m² (2,153 sq ft)
Power supplyBattery or floating cable according to the manufacturer – battery robots don’t get tangled, corded robots run without a break
Cable
Battery (cordless)
Suitable forPool types the manufacturer approves the robot for
In-ground pool
Above-ground poolIn-ground pool
NavigationHow the robot moves according to the manufacturer – systematic navigation and mapping cover the pool faster and more completely
Systematic (gyroscope)
Systematic (gyroscope)
Battery lifeRuntime per charge in the standard program according to the manufacturer in minutes
180 min
Cleaning
ChassisHow the robot moves according to the manufacturer – tracks climb walls and steps and roll over liner folds, wheels and rollers get stuck on edges more easily; propellers drive floating skimmers
Tracks (rubber)
Brush typeType of main brushes according to the manufacturer – PVC, nylon and plastic brushes count as bristles, PVA is the absorbent foam roller that also grips smooth tiles; a "combined brush" usually means bristles plus PVA
Rubber roller
Saltwater compatibleThe manufacturer explicitly approves the robot for saltwater pools – if not stated, the field stays empty
Yes
Flow rateVolume of water the pump draws through the filter per hour according to the manufacturer, in m³/h – a higher flow rate also picks up heavy debris
15 m³/h
14 m³/h
Cleaning programsCleaning programmes according to the manufacturer – "Smart", "Auto" or "Standard" is the full clean of floor and walls, "Quick" or "Turbo" the quick programme, "Enhanced" or "Ultra" the intensive programme; a quick programme is enough for the daily round
Floor onlyWalls onlyFloor and wallsWaterlineIntensive programmeEco
Suitable pool surfacesPool surfaces the manufacturer approves the robot for – "pebble" and pebble plaster count as concrete, "vinyl" and "liner" as liner, fibreglass and GRP as polyester
TilesConcreteVinyl linerPolyester
Program durationDuration of the standard program according to the manufacturer in minutes
120 min
120 min
Filter & maintenance
Filter typeType of debris container according to the manufacturer
Filter basket
Filter basket
Filter capacityFilter capacity according to the manufacturer in liters
3 l (0.79 gal)
Full filter indicatorSignals a full filter on the robot or in the app, according to the manufacturer
No
Filter finenessFineness of the finest included filter according to the manufacturer in microns – the smaller the number, the finer the filter, but it clogs faster
50 µm
10 µm
Battery & cable
Charging timeCharging time from empty to full according to the manufacturer in minutes
180 min
ChargingHow the battery is charged according to the manufacturer – with a plug on the device the socket must be dry; a dock sometimes also rinses the filter but then needs a water connection
Charging cable on the device
Cable lengthLength of the floating cable according to the manufacturer in m – it must reach from the power adapter to the farthest corner
17 m (56 ft)
Anti-twist systemA swivel in the cable prevents the floating cable from twisting, according to the manufacturer
Yes
No
Controls
Obstacle detectionHow the robot detects walls, steps and obstacles according to the manufacturer – with ultrasound, laser or camera before it bumps into them; "ultrasonic radar" and "sonar" are ultrasound, 3D ToF and point laser are laser/ToF
Contact (wall and bump)
Remote controlA remote control is included, according to the manufacturer
No
No
ScheduleCleaning can be repeated on a schedule, according to the manufacturer
Yes
Yes
App controlCan be controlled via app, not just by remote, according to the manufacturer
Yes
Yes
RetrievalHow the robot is ready for removal after cleaning according to the manufacturer – without a retrieval aid it stays on the bottom and has to be fished out with a hook
Parks at the pool edge
Dimensions & weight
WeightWeight of the robot according to the manufacturer in kg, without water and without the cart – matters when lifting it out
7.9 kg (17 lb)
7.9 kg (17 lb)
Water depth up toMaximum water depth the manufacturer approves the robot for, in m
5 m (16 ft)
Pool length up toMaximum pool length the manufacturer approves the robot for, in m
12 m (39 ft)
Transport cart includedA cart for storing and moving the robot is included, according to the manufacturer
Yes
No
DimensionsExternal dimensions according to the manufacturer in cm (W × D × H)
40.23 × 44.38 × 29.02 cm (16 × 17 × 11 in)
36 × 36 × 24 cm (14 × 14 × 9.4 in)
General
Warranty
3 years
2 years
Price segment
Premium
Budget
Model year
2026
In the box
Poolroboter, Netzteil mit WLAN, Anschlusskabel, mehrschichtiger Filtereinsatz, Anleitung, Transportwagen laut Herstellerunterlagen (nicht in jedem Angebot)
Poolroboter, Netzteil, Bergehaken, 2 Schwimmblöcke, Filterkorb + Ultrafeinfilter, Bedienungsanleitung
Prices
Offers
Verdict
Pros & cons
Der Dolphin E40i ist ein Kabelroboter für Einbaubecken bis 12 m, der Boden, Wände und Wasserlinie gründlich und in geplanten Bahnen reinigt. Sein Mehrwert ist der Wochenplan per App, der aber stabiles WLAN am Becken voraussetzt. Treppen bleiben Handarbeit, eine Filteranzeige fehlt, und vollgesogen wird das Gerät beim Herausheben schwer. Ohne App-Nutzung reicht dir ein Modell darunter.
Pros
- Reinigt Boden, Wände und Wasserlinie gründlich in einem Lauf
- Startet per App-Wochenplan selbstständig zu festen Zeiten
- Systematische Bahnen mit Gyroskop decken die Fläche gleichmäßig ab
- Filterkorb lässt sich von oben entnehmen, ohne das Gerät zu drehen
- Drehgelenk am 17 bis 18 m langen Kabel verhindert Verdrillen
- Start auch ohne Smartphone direkt am Netzteil möglich
Cons
- Treppen und Stufen reinigt er nicht
- App-Einrichtung und Verbindungsaufbau brauchen Geduld, WLAN am Becken nötig
- Keine Anzeige für den vollen Filter
- Vollgesogen beim Herausheben schwer, bei 7,5 bis 7,9 kg Leergewicht
- Festsitzender Algenbelag an Folienwänden bleibt teils haften
WYBOT C281
Der WYBOT C2 ist ein kabelloser Raupen-Roboter, der Boden, Wände und Wasserlinie gründlich reinigt, auch auf Folie. Für Becken um 25 m² taugt er gut, der 10-µm-Feinfilter holt Sand und Algenreste. Der Haken: real rund zwei Stunden Akku, im Vollpool-Modus verliert er die Ordnung, und der Zeitplan verteilt nur eine Ladung auf mehrere Tage.
Pros
- Reinigt Boden, Wände und Wasserlinie in einem Lauf, auch auf Folie
- Gummiwalze schrubbt die Wasserlinie ab, kein Schmutzrand bleibt
- Beiliegender 10-µm-Feinfilter holt feinen Sand und Algenreste
- Tastet sich an Düsen, Skimmer und Licht heran, ohne hängen zu bleiben
- Parkt nach dem Lauf meist am Beckenrand, 7,9 kg leicht
- Im Betrieb kaum zu hören, Filterkorb leicht zu leeren
Cons
- Akku hält real rund 120 min, nur Öko-Boden schafft 180 min
- Zeitplan teilt eine Ladung auf bis zu vier Tage, nur Boden
- Im Vollpool-Modus kein festes Muster, in Rundbecken bleiben Zonen schmutzig
- Feinfilter setzt sich in schmutzigem Wasser schnell zu
- Fest verbauter Akku verlor in einzelnen Fällen früh Kapazität
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