Select and compare
Aiper Scuba S3 vs. BWT COSMY 200 compared
Robotic Pool Cleaner
At a glance
The key numbers for both devices side by side.
Overall rating
7676Gut
7777Gut
Value for money
69Fair
76Fair
Best price
€649.00€749.00−13 %
€549.00
Price advantage
—
€100.00 cheaper
Offers
1 shop
1 shop
Rank in category
Rank 20 of 45
Rank 19 of 45
Rating
Sub-ratings compared
Aiper Scuba S3Overall rating 76BWT COSMY 200Overall rating 77
Aiper Scuba S3BWT COSMY 200
Cleaning results82/10080/100
Navigation & reliability71/10072/100
Runtime & endurance70/10076/100
Handling & maintenance83/10080/100
App & build quality68/10066/100
Cleaning results
82
80
Navigation & reliability
71
72
Runtime & endurance
70
76
Handling & maintenance
83
80
App & build quality
68
66
Specs
Specs compared
Key specs
Model
Scuba S3
COSMY 200
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
150 m² (1,615 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)
Cable
Suitable forPool types the manufacturer approves the robot for
In-ground pool
In-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
Bristles
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
18 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 onlyWalls onlyFloor and wallsWaterlineEco
Floor onlyFloor and walls
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
ConcretePolyesterVinyl linerTiles
ConcreteTilesVinyl linerPolyester
Program durationDuration of the standard program according to the manufacturer in minutes
180 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
3.5 l (0.92 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
3 µm
150 µm
Battery & cable
Charging timeCharging time from empty to full according to the manufacturer in minutes
300 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
16 m (52 ft)
Anti-twist systemA swivel in the cable prevents the floating cable from twisting, according to the manufacturer
Yes
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)Laser/ToF
Remote controlA remote control is included, according to the manufacturer
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
Waits at the waterline
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
8.13 kg (18 lb)
5.7 kg (13 lb)
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)
38 × 44.4 × 21.8 cm (15 × 17 × 8.6 in)
36.5 × 39.5 × 20 cm (14 × 16 × 7.9 in)
General
Warranty
2 years
2 years
Price segment
Premium
Model year
2026
2024
In the box
Poolroboter, Ultrafeinfilter-Einsatz, Bergungshaken
Poolroboter, Netzteil, Schwimmkabel; Transportwagen optional
Prices
Offers
Verdict
Pros & cons
Der Aiper Scuba S3 ist ein leichter Akku-Roboter, der Boden, Wände und Wasserlinie gründlich reinigt und grüne Algenränder am Rand löst. Er passt in rechteckige oder leicht geschwungene Einbaupools mit Sand und Feinschmutz. Der Haken: Stufen und Sitzbänke bleiben Handarbeit, und der Akku hält realistisch nur 90 bis 120 min. Bergen, Korb spülen und Laden gehören bei dir fast täglich dazu.
Pros
- Reinigt Boden und Wände gründlich von Sand, Erde und Blättern
- Schrubbt die Wasserlinie mit JetAssist und löst grüne Algenränder
- Mit 8,13 kg leicht, Wasser läuft beim Herausheben schnell ab
- 3-µm-Feineinsatz hält Pollen, Feinsand und Algenreste zurück
- Haftet sicher an Fliesen und gewölbten Wänden bis zum Rand
- Fährt sich kaum fest und dreht am Strandeinstieg um
Cons
- Stufen, Sitzbänke und Innenecken bleiben teils ungeputzt
- Akku reinigt real nur 90 bis 120 statt 180 min
- Parken an der Wasserlinie klappt nicht immer, dann Haken nötig
- Filterkorb bei viel Laub schon während des Laufs voll
- Laden nur per Steckerkabel bei trockener Buchse, rund 4 bis 5 h
Der BWT COSMY 200 ist ein leichter Kabelroboter für Einbaubecken bis 10 m, der Boden, Wände und Wasserlinie gründlich und in geordneten Bahnen reinigt. Mit 5,7 kg und Schnellablauf hebst du ihn ohne Kraftakt aus dem Becken. Der Haken: Der Filterkorb hält erst Schmutz ab 150 µm zurück, ein Feinfilter ist nicht erhältlich, Pollen und Staub bleiben der Filteranlage überlassen.
Pros
- Schrubbt an der Wasserlinie, statt nur kurz anzustoßen
- Fährt per Gyroskop geordnete Bahnen, auch Ecken und Nischen
- Mit 5,7 kg leicht, Schnellablauf lässt beim Anheben Wasser ab
- Filterkorb per Knopfdruck von oben entnehmbar, mit Voll-Anzeige
- Intervall-Zeitplan alle 48, 72 oder 96 h über die App
- Ersatzteile wie Ketten, Bürsten und Kabel einzeln lieferbar
Cons
- Filter hält nur Schmutz ab 150 µm, kein Feinfilter erhältlich
- App nur per Bluetooth in Reichweite des Netzteils
- Kein Zeitplan mit festen Wochentagen, nur Intervall
- Stufen und Treppen schafft er nicht verlässlich
- Bleibt nach dem Lauf am Boden, in tiefen Becken Haken nötig
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