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Turns crisply in kidney/freeform pools and scrubs along the tile waterline.
myDolphin™ Plus Wi-Fi App
Remote scheduling, cycle modes, and manual spot-steering.
Top-Access Dual Filtration
Captures rough leaves and ultra-fine dust in an easy-rinse top basket.
Dual Active Brushes
Scrubs algae and sunscreen rings off all pool surfaces.
Smart Pool Scanning
Covers complex inground layouts up to 50 ft systematically.
Tangle-Resistant Cable
Long corded reach with continuous low-voltage power.
Our Take
Who the Dolphin Explorer E40 Is Really For
Best For
Awkward pool shapes, thanks to Dual Drive
The Bottom Line
Sits right between the Explorer E30 Wi-Fi and E50—offering connected waterline scrubbing and nimble dual-drive handling for awkward pool shapes.
The Explorer E40 fills the gap between the E30 and E50 in Maytronics' range. Its distinguishing feature is Dual Drive — independently driven tracks that let it pivot rather than arc, which is what gets a robot into tight corners and around obstacles.
Dual Drive and why shape matters
A single-drive robot turns in an arc. On a rectangle that's fine; on a kidney, a freeform or anything with a swim-out, arcing means repeatedly missing the same inside corners. Dual Drive lets the E40 pivot on the spot, so it can address awkward geometry directly.
Waterline
Constant wall grip gives the brush proper contact time across the tile band — the same mechanism as on the DX5i and Advantage Ultra.
Worth knowing before you buy
Review volume is low and the average is middling. We stock the Explorer E30 Wi-Fi and E50, which bracket this model on price with far more evidence behind them. If your pool's shape is genuinely the problem, the E40 is worth a look; otherwise start with what we carry.
Specifications come from the manufacturer or Amazon listing.
Side-by-side comparison
How the Dolphin Explorer E40 Stacks Up
This model next to the three ProLine™, Max-Series™ and Clear™ robots closest to its price. Use the dropdowns to put any robot in a column: every Dolphin line, the Clear™ Series, and the other brands we carry.
