Skip to content
Robovations
Robovations™
Robot Autonomy, Classified
Saved

ComparisonPolaris 9650iQ Sport and Maytronics Dolphin EON 120d

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 9650iQ Sport Dolphin EON 120d
Pool type
In-ground GoodDesigned and documented exclusively for in-ground pools; plaster and gunite verified by manufacturer. GoodCordless design assumes permanent dock at pool edge; in-ground installation is the primary market.
Above-ground PoorManufacturer documentation restricts use to in-ground pools; above-ground vinyl liner walls risk brush abrasion. PoorCordless dock requires stable, integrated placement; above-ground pools lack power infrastructure for dock installation.
Mixed setupthey differ DependsIf your pool mix includes any above-ground vinyl liner pools, the 9650iQ Sport is not rated for those installations. GoodIn-ground preferred; above-ground not supported per current documentation.
Pool size
Small (< 400 sqft) GoodCapable in small pools but 60-foot cable generates excess slack; turning radius creates coverage gaps in tight footprints. GoodMSRP $1,199 targets larger pools; smaller pools may find similar coverage in lower-tier cordless models.
Medium (400 – 800) GoodSized and runtime-calibrated for mid-range in-ground pools; systematic path covers 15,000-25,000 gallons in a standard 2.5-hour cycle. Good12,000–25,000 gallons aligns with manufacturer documentation and DebrisLock design specifications.
Large (> 800) GoodFour-wheel drive and extended runtime handle large in-ground pools; very large pools over 40,000 gallons may require a second cleaning cycle. GoodSmart mapping supports multi-session coverage for pools over 25,000 gallons; runtime per cycle undocumented.
Debris load
Fine (sand / silt) Good70-micron fine filter canister captures algae and fine particulates that standard bag filters pass through. GoodStandard filters and backwash handle algae and fine particles; DebrisLock not primarily designed for fine debris.
Leaves / large debris GoodFilter canister capacity handles moderate leaf load; heavy leaf pools may require mid-cycle filter rinse to maintain suction. GoodDebrisLock backwash system engineered specifically for leaf and organic debris volume without filter clogging.
Algae / heavy foulingthey differ GoodScrubbing brush contact on plaster and gunite surfaces addresses algae buildup; 70-micron filtration captures loosened algae particles. DependsAlgae requires chemical treatment and brush scrubbing; Dolphin handles removal but does not address root cause.
Coverage you want
Floor only GoodThe 9650iQ Sport covers floor, walls, and waterline by design; floor-only need means paying for wall-climb capability you are not using. GoodSmart mapping documented for floor-only coverage patterns; baseline autonomy performance.
Floor + walls GoodFour-wheel drive climbs pool walls reliably on plaster and gunite; owner reports confirm wall coverage on pools with standard 90-degree wall angles. GoodEON 120d reaches walls per manufacturer specs; waterline and tanning-ledge coverage included.
Floor + walls + waterlinethey differ GoodWaterline scrubbing is a documented manufacturer specification; the 9650iQ Sport is one of the few models in its class to reach the tile band. DependsWaterline reach confirmed; full waterline scrub cadence depends on smart-map programming and documented test cycles.

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 9650iQ SportSpecifications, evidence, the Fit Check in full, and every tracked change.The full recordMaytronics Dolphin EON 120dSpecifications, 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.