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ComparisonPolaris Atlas and Maytronics Dolphin Nautilus CC Pro

Up to three

All robot pool cleaners. Every figure below is placed against the whole class, so a gap can be read against how much the class itself varies.

Where each one suits you.

The conditions each robot was assessed against, side by side. Rows marked in gold are where these machines genuinely differ.

Fit verdicts by condition for each robot
Condition Polaris Atlas Maytronics Dolphin Na…
Pool type
In-ground GoodThe 39 ft hose connects to a skimmer or 1.5 in vacuum line, the plumbing most in-ground pools already have. GoodMaytronics classifies it for in-ground pools in rectangular, round, free-form and kidney shapes.
Above-groundthey differ DependsNo above-ground-specific connection guidance was found; suction-side cleaners like this typically assume in-ground skimmer or vacuum-line plumbing. GoodMaytronics classifies the CC Pro for above-ground pools as well as in-ground pools.
Mixed setupthey differ DependsCompatibility depends on having a skimmer or 1.5 in vacuum line and adequate pump flow, not documented for every setup. GoodMaytronics lists both in-ground and above-ground pools, so a mixed setup is covered.
Pool size
Small (< 400 sqft) GoodA 39 ft hose reaches easily across a small pool from the skimmer or vacuum-line connection point. GoodRated for pools up to 50 ft long, well beyond a small pool's length.
Medium (400 – 800) GoodThe 39 ft hose and 15 in cleaning width are sized to cover a medium pool without repositioning the connection. GoodMaytronics' 50 ft length rating comfortably covers typical mid-size residential pools.
Large (> 800) DependsNo maximum pool size is published; a 39 ft hose may not reach every corner of a large pool. DependsRated to 50 ft long; pools beyond that exceed Maytronics' stated range, and no large-pool test was found.
Debris load
Fine (sand / silt)they differ GoodHALO anti-clog technology is built for the fine and stringy debris that stalls ordinary suction-side cleaners. DependsA fine filter kit is included, but no independent test of the CC Pro's fine debris pickup was found.
Leaves / large debris DependsHALO anti-clog targets fine and stringy debris; no documented capacity figure exists for handling heavy leaf loads. DependsNo independent test of heavy leaf loads was found, and there is no full-filter warning.
Algae / heavy fouling DependsNo documented evidence addresses algae or heavy fouling; this cleaner's coverage depends on run time, not sensing. DependsTwo active brushes scrub surfaces, but no independent algae test of the CC Pro was found.
Coverage you want
Floor only GoodTri-Point tracks with active scrubbing brushes are built primarily for floor coverage, driven by the pool's own pump. GoodMaytronics lists floor cleaning as part of its default 2-hour cleaning cycle.
Floor + wallsthey differ DependsFloor and wall cleaning are listed among its surfaces, but no sensors confirm the walls were actually reached each cycle. GoodMaytronics lists floor and wall cleaning, and a reviewer describes it clinging to walls.
Floor + walls + waterline DependsTile-line contact is listed among its surfaces, but with no sensors or route logic, waterline coverage is not confirmed either. DependsMaytronics claims waterline scrubbing, but no independent waterline test of the CC Pro was found.

A robot being poor for a condition is a fact about fit, not a fault. “Depends” means the record names a limit worth reading, not that the answer is unknown.

Keep going.

The full recordPolaris AtlasSpecifications, evidence, the Fit Check in full, and every tracked change.The full recordMaytronics Dolphin Nautilus CC ProSpecifications, evidence, the Fit Check in full, and every tracked change.

Robovations classifies robots; it does not rank them. Nothing on this page is a recommendation, and no manufacturer influences a classification or its placement here.