Select and compare
Dolphin Nautilus EON 100 vs. Ecovacs Ultramarine P1 compared
Robotic Pool Cleaner
At a glance
The key numbers for both devices side by side.
Overall rating
8181Gut
8181Gut
Value for money
76Fair
86Excellent
Best price
€899.00
€399.00€599.00−33 %
Price advantage
—
€500.00 cheaper
Offers
1 shop
2 shops
Rank in category
Rank 17 of 45
Rank 15 of 45
Rating
Sub-ratings compared
Dolphin Nautilus EON 100Overall rating 81Ecovacs Ultramarine P1Overall rating 81
Dolphin Nautilus EON 100Ecovacs Ultramarine P1
Cleaning results84/10087/100
Navigation & reliability76/10070/100
Runtime & endurance90/10080/100
Handling & maintenance66/10081/100
App & build quality78/10087/100
Cleaning results
84
87
Navigation & reliability
76
70
Runtime & endurance
90
80
Handling & maintenance
66
81
App & build quality
78
87
Specs
Specs compared
Key specs
Brand
Model
Nautilus EON 100
Ultramarine P1
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
FloorWalls
Max. pool areaLargest pool area according to the manufacturer in m² – some manufacturers state only the pool length instead
180 m² (1,938 sq ft)
Power supplyBattery or floating cable according to the manufacturer – battery robots don’t get tangled, corded robots run without a break
Battery (cordless)
Battery (cordless)
Suitable forPool types the manufacturer approves the robot for
Above-ground poolIn-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
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)
Tracks (rubber)
Saltwater compatibleThe manufacturer explicitly approves the robot for saltwater pools – if not stated, the field stays empty
Yes
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
18 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 and wallsFloor onlyWaterlineIntensive programme
Floor onlyWalls onlyFloor and wallsEco
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
Vinyl linerConcreteStainless steelTilesMosaic tilePolyester
ConcreteVinyl linerPolyesterTiles
Program durationDuration of the standard program according to the manufacturer in minutes
120 min
90 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
4 l (1.1 gal)
Full filter indicatorSignals a full filter on the robot or in the app, according to the manufacturer
Yes
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
70 µm
3 µm
Battery & cable
Charging timeCharging time from empty to full according to the manufacturer in minutes
270 min
240 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
Charging cable on the device
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)
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
No retrieval aid (hook needed)
Dimensions & weight
WeightWeight of the robot according to the manufacturer in kg, without water and without the cart – matters when lifting it out
10 kg (22 lb)
10 kg (22 lb)
Water depth up toMaximum water depth the manufacturer approves the robot for, in m
3 m (9.8 ft)
Pool length up toMaximum pool length the manufacturer approves the robot for, in m
15 m (49 ft)
Transport cart includedA cart for storing and moving the robot is included, according to the manufacturer
No
DimensionsExternal dimensions according to the manufacturer in cm (W × D × H)
41.1 × 44.9 × 28.3 cm (16 × 18 × 11 in)
46.6 × 39.3 × 23.8 cm (18 × 15 × 9.4 in)
General
Warranty
2 years
Price segment
Premium
Mid-range
Model year
2026
In the box
Poolroboter, Ladegerät, Monoblock-Filterkorb, Greifhaken (Clicker optional)
Poolroboter, Netzteil, Rückholhaken, Ersatz-Walzenbürsten, Kletterringe, Doppelfilter (180 µm + 3 µm)
Prices
Offers
Verdict
Pros & cons
Der Dolphin Nautilus EON 100 ist ein kabelloser Raupen-Roboter, der Boden, Wände, Wasserlinie und sogar Stufen und Sonnenbänke ab 20 cm reinigt und sich dabei nie festfährt. Er fährt allerdings ohne erkennbares Muster und erkennt keinen Schmutz. Der Haken liegt beim Bergen: Ohne zugekauften Clicker wartet er am Boden, und der 70-µm-Filter lässt Feinstaub durch.
Pros
- Reinigt Stufen, Sicherheitsstufe und Sonnenbänke ab 20 cm Wassertiefe
- Fuhr sich im Test kein einziges Mal fest, auch nicht in Ecken
- Schrubbt die Wasserlinie lange mit aktiven Bürsten, statt nur anzustoßen
- Akku hielt mit drei Viertel Ladung 2 h 49 min durch
- Korb hält Laub, Insekten und sogar Hundehaare zurück
- Filter-voll-Anzeige per LED und App
Cons
- Ohne extra bezahlten Clicker bleibt er zum Bergen am Boden
- 70-µm-Filter lässt feinen Schwebstaub durch, Feinfilter nicht beigelegt
- Kommt mit römischen Treppen und 45°-Schrägen nicht zurecht
- Fährt kreuz und quer, langsam und ohne Schmutzerkennung
- Stufen fährt er nur einmal ab, statt sie gründlich zu schrubben
Der Ecovacs Ultramarine P1 ist ein kabelloser Raupenroboter für Boden und Wände, der den Boden zuverlässig gründlich reinigt – Laub, Sand und sogar kleine Kiesel landen im Filter. Feinfilter mit 3 µm und Bergehaken liegen bei. Der Haken: Ecken, Stufen und hängende Leitern überfordern ihn, und die Wasserlinie erreicht er nicht überall. Für einfache Becken mit ebenem Boden passt er gut.
Pros
- Holt Laub, Sand, Ästchen bis 3 cm und kleine Kiesel zuverlässig vom Boden
- Doppelfilter mit 3-µm-Feinfilter fängt auch feinen Sand und Schwebstoffe
- Filterkorb mit 4 l läuft in einem normalen Lauf nicht voll
- Zeitplan mit Dauer und Modus startet den Roboter selbstständig
- Kabellos, nichts verheddert sich an Leiter oder Pumpe
- Robustes Gehäuse, Ersatzteile wie Raupen und Filter einzeln erhältlich
Cons
- Bleibt an hängenden Leitern, flachen Abläufen und oberster Treppenstufe hängen
- Ecken, Übergänge und umlaufende Wandstufen bleiben teils ungereinigt
- Wasserlinie nur auf manchen Bahnen erreicht, kippt mitunter beim Klettern
- Nachladen dauert fast 4 h, Ladung reicht in manchen Becken nur knapp
- Bleibt nach dem Lauf am Boden liegen, Bergen nur mit Haken
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