Dolphin robots are made by Maytronics, the long-established maker of mostly corded robotic pool cleaners, from the above-ground E10 to the cordless Liberty series.
Sorted by research score.
Maytronics' long-running corded robot cleans the floor and walls of in-ground pools in a 2-hour cycle, with a top-load fine filter and a weekly timer.
Pros
Cons
Maytronics' cordless robot for in-ground pools up to 33 ft long; cleans floor, walls and waterline in a 2.5-hour cycle and charges by induction.
Pros
Cons
Maytronics' entry-level corded robot for above-ground pools up to 30 ft long; floor-only cleaning in a 1.5-hour cycle.
Pros
Cons
Maytronics, an Israeli company, has made Dolphin robots for decades, and its corded models are still the benchmark many pool professionals recommend. A corded robot never runs out of battery mid-clean and has no battery to replace after a few seasons; the trade-off is a cable to unroll, untangle and store.
| Model | Power | Cleans | Pool size |
|---|---|---|---|
| E10 | Corded | Floor only | Above-ground, up to 30 ft long |
| Nautilus CC Plus | Corded | Floor and walls | In-ground, up to about 40 ft long |
| Liberty 400 | Cordless | Floor, walls, waterline | In-ground, up to 33 ft long |
Maytronics sells different versions in different countries (cable lengths, warranties and model numbers vary), and its US website is not available outside the US. We use Maytronics' published figures and say where a number comes from a regional page or brochure.