Dolphin NAUTILUS EON 120d Cordless Robotic Pool Cleaner

Our take

The Dolphin NAUTILUS EON 120d Cordless Robotic Pool Cleaner is a cordless, battery-powered robotic pool cleaner from Maytronics Dolphin. It cleans the floor, walls and waterline, navigates in a pattern its maker doesn’t describe, and connects to its app over Wi-Fi. A charge lasts up to 150 minutes.

On paper it scores 6.9 out of 10 (fair) against other robotic cleaners. Its strongest areas are pool size (10.0) and cleaning coverage (9.0). Where it gives ground: warranty (4.0) and navigation (4.0). The maker doesn’t say how it navigates.

The best price we found is $1,199 at Maytronics Dolphin (US). The typical robotic cleaner we track costs $899, so this one is pricier than most. For what it does, its value score is 1.9 out of 10.

If you want mapping navigation, the cheapest we track with it is the Dreame Z1 Cordless Robotic Pool Cleaner at $349.99.

If you want surface skimming, the cheapest we track with it is the Beatbot Sora 70 Robotic Pool Cleaner at $1,199.

To spend less for nearly the same spec score, the Beatbot AquaSense 2 Robotic Pool Cleaner rates 9.0 for $799.

For about the same money, the Beatbot AquaSense Robotic Pool Cleaner scores higher (8.7) at $799.

Bottom line: a fair pick for pools with no outlet near the deck, scheduling and checking on cleans from your phone, large pools and above-ground pools.