
Beatbot iSkim Ultra · Maytronics Dolphin Nautilus CC Pro
All robot pool cleaners. Every measure below is plotted against the full class, so a difference can be read against how much the class itself varies.
- Beatbot iSkim Ultra
- Maytronics Dolphin Nautilus CC Pro


Maytronics Dolphin Nautilus CC Pro
- Autonomy
- IIAssisted Autonomy
- Score
- Not scored
- Readiness
- Not assessed
- Price
- $999list
Up to three
What each one does on its own.
The Autonomy Ladder is the same five rungs for every robot on the site. A rung describes the conditions a robot handles without you, not how good it is.
Where they actually differ.
The Robovations Score is nine inputs across three pillars, each weighted as shown and each scored so that more is better. A robot can lead on one and trail on another, which is the point of showing them apart. Cost of ownership and data handling are reported on each robot's own page and are never averaged into the score.
Capability
- Beatbot iSkim Ultra18
Not scored: Maytronics Dolphin Nautilus CC Pro
- Beatbot iSkim Ultra48
Not scored: Maytronics Dolphin Nautilus CC Pro
- Beatbot iSkim Ultra28
Not scored: Maytronics Dolphin Nautilus CC Pro
- Beatbot iSkim Ultra70
Not scored: Maytronics Dolphin Nautilus CC Pro
Dependability
- Beatbot iSkim Ultra73
Not scored: Maytronics Dolphin Nautilus CC Pro
- Beatbot iSkim Ultra65
Not scored: Maytronics Dolphin Nautilus CC Pro
- Beatbot iSkim Ultra58
Not scored: Maytronics Dolphin Nautilus CC Pro
Ownership burden
- Beatbot iSkim Ultra100
Not scored: Maytronics Dolphin Nautilus CC Pro
- Beatbot iSkim Ultra69
Not scored: Maytronics Dolphin Nautilus CC Pro
How far apart is a long way?
A number only means something next to the spread it sits in. Each track below is the real range across every classified robot in the class, with the median marked.
- Beatbot iSkim Ultra$999
- Maytronics Dolphin Nautilus CC Pro$999
- Beatbot iSkim Ultra8.8 lbs
- Maytronics Dolphin Nautilus CC Pro17.4 lbs
- Beatbot iSkim Ultra5.1 in
- Maytronics Dolphin Nautilus CC Pro11.4 in
Not compared, because fewer than two of these robots carry a published figure: Suction, Runtime, Charge time, Noise.
What the numbers leave out.
The trade-off
What each design gives up to be good at what it is good at.
You are paying for a machine that works one plane of the pool continuously. A 24 W solar panel keeps it running without a cable and a magnetic wireless charger covers the days the sun does not, so the trade is not weather. The trade is that it will never clean the floor.
Wi-Fi scheduling and 50 ft of range over the Nautilus CC, with no independent test yet of the CC Pro itself.
Who each one is wrong for
Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.
- Pools that need debris removed from the floor
- The iSkim Ultra works the water surface only. Debris that has already sunk is outside its job, and floor, wall, and waterline cleaning is a separate machine.
- Pools under sustained heavy leaf fall
- The basket holds 9 liters and is emptied by hand. Under continuous leaf drop it fills faster than a weekly check, and independent testing has reported surface debris left behind.
- Owners expecting a full-pool cleaner at this price
- Beatbot lists the iSkim Ultra at $999, currently $649. That buys continuous surface skimming and built-in water clarification, not floor, wall, or waterline cleaning.
- Buyers who want independent test results first
- Good Housekeeping and Bob Vila tested the Nautilus CC and CC Plus; no hands-on test of the CC Pro was found.
- Pools longer than 50 ft
- Maytronics rates the CC Pro for pools up to 50 ft in length.
- Owners who want a full-filter warning
- Maytronics' spec table lists no full filter indicator, so the top-access filter is checked by eye.
- Buyers wanting a longer warranty
- Maytronics lists a 1-year warranty for the Nautilus CC Pro.
What stays your job
The upkeep ownership hands back to you, whatever the autonomy level says.
- Weekly: Wipe the solar panel clear of pollen and dust so it keeps collecting.
- Weekly: Empty the 9 liter basket, more often during heavy leaf fall.
- Monthly: Rinse the 380 micrometer filter mesh with a hose and check the side brushes for matted hair.
- Seasonally: Store the machine indoors with the battery charged rather than empty. A lithium pack left discharged over a closed season degrades.
- Not documented: Beatbot publishes no service interval or consumable cost for the built-in water clarification function.
- After every use: Lift the robot out and empty the top-access fine filter.
- As needed: Check the anti-tangle swivel cable for twists.
- As needed: Inspect the two standard brushes and replace them when worn.
- As needed: Update schedules in the MyDolphin Plus app when pool use changes.
- Seasonally: Rinse and store the robot and power supply out of the sun when the pool closes.
How much each of these is standing on.
Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.
| Robot | Evidence status | Sources reviewed | Last assessed |
|---|---|---|---|
| Beatbot iSkim Ultra | Provisional | 5 | Sep 2026 |
| Maytronics Dolphin Nautilus CC Pro | Provisional | 4 | Sep 2026 |
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Comparing across classes is allowed — the page will switch to per-class positioning and tell you it has.