Dolphin EON 120d

Maytronics has been building pool robots under the Dolphin name since 1983 and is the incumbent of the category that Chinese newcomers such as Beatbot, Aiper and WYBOT have spent the last two years attacking. The EON line is its answer, launched at CES Unveiled in Las Vegas on 4 January 2026, and the 120d is the full-featured model at 1,199 dollars; the cheaper EON 100 at 899 dollars shares the chassis but is quoted at a shorter run and does not scrub the waterline. The pitch is not runtime or self-emptying but reach. Almost every pool robot needs to be fully submerged to work, which leaves the tanning ledge, the Baja shelf and the top step to be scrubbed by hand. The EON puts its impeller low in the body and can therefore keep cleaning in about 20 centimetres of water, and a set of jets the manufacturer calls JetIQ lifts and steers the machine over stairs and around curves. Coverage claimed on the product page is the floor, the walls and waterline, steps, corners, the sun ledge and the safety ledge — in practice, the whole pool. The second argument is filtration. DebrisLock, fitted to the 120d but not to the EON 100, pushes water back through the filter while the robot is still in the pool, so a sensor that detects a clogged basket can trigger a backwash on the spot; the dislodged dirt is held in a sealed compartment instead of drifting back into the water. Maytronics claims this stretches filter cleaning from daily to weekly and saves around twenty hours of work a season, and that the ultra-fine media leaves water four times clearer than competing products. The machine weighs 11 kilograms, is rated for pools up to 15 metres long and moves 15,000 litres of water an hour through two active brushes. A cleaning cycle lasts 1.5, 2 or 2.5 hours, and the manufacturer's UltraRun figure — up to 2.5 weeks of pool cleaning on a single charge in Eco mode — refers to a series of such cycles, not to continuous work; retail listings that describe it as a four-hour battery are describing the maximum single run, not the cleaning claim. Two caveats the catalogue records rather than resolves: the launch announcement promises a three-year warranty, while the manufacturer's own American product page states one year, and that same announcement says the EON 100 has every feature of the 120d except DebrisLock, while the two product pages differ on runtime and waterline scrubbing as well. Hybrid power, letting the same robot run cordless or on a cable, was announced for late 2026.

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