Select and compare
Beatbot AquaSense 2 Pro vs. Dolphin Liberty 400 compared
Robotic Pool Cleaner
At a glance
The key numbers for both devices side by side.
Overall rating
8383Gut
8585Gut
Value for money
67Fair
84Excellent
Best price
€1,899.00
€965.00€999.00−3 %
Price advantage
—
€934.00 cheaper
Offers
3 shops
1 shop
Rank in category
Rank 12 of 45
Rank 9 of 45
Rating
Sub-ratings compared
Beatbot AquaSense 2 ProOverall rating 83Dolphin Liberty 400Overall rating 85
Beatbot AquaSense 2 ProDolphin Liberty 400
Cleaning results87/10077/100
Navigation & reliability81/10080/100
Runtime & endurance93/10081/100
Handling & maintenance75/10091/100
App & build quality83/10086/100
Cleaning results
87
77
Navigation & reliability
81
80
Runtime & endurance
93
81
Handling & maintenance
75
91
App & build quality
83
86
Specs
Specs compared
Key specs
Brand
Model
AquaSense 2 Pro
Liberty 400
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
FloorWallsWaterlineFinish
FloorWallsWaterline
Max. pool areaLargest pool area according to the manufacturer in m² – some manufacturers state only the pool length instead
360 m² (3,875 sq ft)
50 m² (538 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
In-ground pool
NavigationHow the robot moves according to the manufacturer – systematic navigation and mapping cover the pool faster and more completely
Sensor-based mapping
Systematic (gyroscope)
Battery lifeRuntime per charge in the standard program according to the manufacturer in minutes
300 min
150 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)
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
Bristles
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
20.8 m³/h
15 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 onlyFloor and wallsSurface (skimmer)Eco
Floor and wallsFloor onlyIntensive 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
TilesVinyl linerPolyesterConcreteStainless steel
Vinyl linerConcretePolyester
Program durationDuration of the standard program according to the manufacturer in minutes
150 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
3.7 l (0.98 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
150 µm
50 µm
Battery & cable
Charging timeCharging time from empty to full according to the manufacturer in minutes
270 min
360 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 cradle
Wireless charging station
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
Ultrasonic
Remote controlA remote control is included, according to the manufacturer
No
Yes
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
Surfaces and floatsRecall via app
Waits at the waterline
Dimensions & weight
WeightWeight of the robot according to the manufacturer in kg, without water and without the cart – matters when lifting it out
11 kg (24 lb)
8.1 kg (18 lb)
Water depth up toMaximum water depth the manufacturer approves the robot for, in m
3 m (9.8 ft)
3 m (9.8 ft)
Pool length up toMaximum pool length the manufacturer approves the robot for, in m
10 m (33 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)
43.6 × 26.3 × 45.1 cm (17 × 10 × 18 in)
43.7 × 40.1 × 26.9 cm (17 × 16 × 11 in)
General
Warranty
3 years
3 years
Price segment
Premium
Premium
Model year
2025
2024
In the box
Poolroboter, Ladestation, Klärmittel-Satz, Haken, Doppelfilterkorb, Schnellstartanleitung, Benutzerhandbuch
Filterkorb, 2 feine/2 ultrafeine + 2 ultrafeine Filterpaneele, Ladegerät, Greifhaken, Klicker, Laufradwerkzeug, Organizer
Prices
Offers
Verdict
Pros & cons
Der Beatbot AquaSense 2 Pro ist ein kabelloser Poolroboter auf Raupen, der Boden, Wände, Wasserlinie und Oberfläche reinigt. Er verweilt an der Wasserlinie und schrubbt sie doppelt, eine Ladung reicht für mehrere Stunden. Für große Einbaupools mit Fliesen oder Folie ist er eine sehr gute Wahl. Der Haken: Laub schiebt der Skimmer-Modus oft weg, und rund 11 kg wollen aus dem Becken gehoben werden.
Pros
- Schrubbt die Wasserlinie zweimal im N-Muster, Algenspuren verschwinden sichtbar
- Lief im Pro-Modus über 3 h und deckte mehr als 110 m² ab
- Taucht am Ende auf und pumpt das Wasser per SmartDrain ab
- Umfährt eine frei hängende Poolleiter, ohne sich zu verkeilen
- Filterkorb mit 3,7 l und Falltür-Boden in wenigen Minuten gespült
- Reinigt auch ovale und runde Becken samt Rundungen vollständig
Cons
- Skimmer-Modus drückt Blätter mit dem eigenen Wasserstrahl seitlich weg
- Rund 11 kg schwer, über hohe Beckenränder teils nur zu zweit
- Kleine oder geschwungene Stufen bleiben ungereinigt
- In Becken mit mehreren Ecken teils zwei Läufe nötig
- Sinkt nach etwa 20 min an der Oberfläche wieder ab
Der Dolphin Liberty 400 reinigt Boden, Wände und Wasserlinie ohne Kabel und wartet nach dem Lauf an der Wasserlinie auf den Klicker. In gepflegten Becken mit Folie oder rauem Beton arbeitet er verlässlich und bequem. Der Haken: weniger Sog als Kabelgeräte, ein fest verbauter Akku mit bis zu 6 h Ladezeit und Durchdrehen an glatten Fliesen.
Pros
- Reinigt Boden, Wände und Wasserlinie ohne Schwimmkabel
- Bergung per Klicker bis zu zwei Tage nach Zyklusende
- Induktives Laden per Magnetstecker ohne offene Kontakte
- Eco-Modus verteilt eine Ladung auf 3 x 40 min pro Woche
- Systematische Bahnen per Gyroskop statt Zufallsfahrt
- Filterkorb von oben entnehmbar, Paneele bis 50 µm
Cons
- Raupen drehen auf glatten Fliesen und Mosaik an Wänden durch
- Saugt und schrubbt schwächer als kabelgebundene Dolphin-Modelle
- Akku fest verbaut, bis zu 6 h Ladezeit für einen Zyklus
- Bei viel Schmutz bleiben nach einem Durchgang Reste
- Wasserlinie und Ecken teils ungleichmäßig gereinigt
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