Dolphin Advantage
Best overall — The best owner record among the corded robots whose rating belongs to one machine, and the cheapest way into corded at about $669: 4.4★ across 965 owners, with 11% of them at one or two stars at the October 26, 2026 read. It climbs walls, runs an active scrubbing brush and uses a top-load filter basket, plug-and-play on a two-hour cycle. Maytronics rates it for in-ground pools up to 33 ft, and the two pricier trims above it rate worse.
Sold in 3 versions on one listings on this listing: Advantage, Ultra, Pro — this page is the Advantage. Check the size before you add to cart.
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Specs
| Power | Corded (no battery) |
| Cleans | Floor, walls + active scrub |
| Runtime | Corded — 2 hr cycle |
| Pool size | In-ground |
| Filtration | Top-load filter basket (µm not published) |
| Rating basis | Model-specific — one listing, three trims, but each carries its own rating |
| Owner rating | 4.4★ / 965 (pooled) |
| Warranty | 2 years |
| Replacement filters | S1 platform: ultra-fine cartridges $45.49, ultra-fine basket $55.99, monoblock fine $64.99, fine basket $109.99 — the fine basket costs twice the ultra-fine. The $44.99 fine panels do not fit this model. Maytronics publishes no micron figure for any tier. |
Filtration is rated in microns (µm — millionths of a meter): the smallest particle the filter reliably traps, so a lower number is a finer filter. A human hair is ~70 µm; ultra-fine (~3–10 µm) catches the silt and dead algae that make water hazy. "µm not published" means the maker states no number — which is information in itself.
Pros
- The cheapest way into a corded Dolphin at about $669 — no battery, no charging, and it runs its full cycle every time
- Climbs walls and runs an active scrubbing brush, which is more capability than most cordless machines at this price
- Top-load filter basket rather than cartridges, which owners across the Dolphin line consistently find easier to rinse
Cons
- Rated by Maytronics for in-ground pools up to 33 ft only, with one brush and no waterline scrub, swivel or timer — for a longer pool, the Proteus DX5i is the step up
- Early failure is its weak point: four of its ten newest critical reviews are a unit that quit within weeks, including a control unit and a power supply inside five weeks (read 2026-10-26)
- Amazon sells all three Advantage trims under one listing from $669 to $999, and the step-ups are a warning rather than an upgrade path. The Advantage Ultra at $899 reads 3.7★ across 116 owners, a fifth of them one star; the Wi-Fi Advantage Pro at $999 is worse again, with nearly half of its 28 owner ratings at one star. Paying more under this name buys a shallower base and a worse record.
- Stepping up also changes the filter platform: the Ultra and Pro take S2 parts, where an ultra-fine 4-pack is $124.99 against the $45.49 this machine's S1 parts cost — about 2.7x the consumable bill
- Maytronics publishes no micron figure for its filtration, here or anywhere in the Dolphin line
- Wi-Fi and app control are not part of this model — which, given how Dolphin's apps are rated by their current owners, is arguably not a loss
A season, and then the cord. "Worked great... for 1 season"; "I have had my Dolphin Advantage for 2.5 seasons now. I love it, but the cord i[s failing]"; "not as good as the original I purchased 5 years ago — this model has a shorter [cord]". The cord is the specific, repeated weak point, and one owner flags a practical trap around it: on a 33-foot in-ground pool the reach only works if the GFCI is within about six feet of the water. The cleaning itself splits owners — several praise the suction and wall scrubbing, while two say it misses: "it doesn't get all the dirt or scrub the walls well" and "not very smart" about coverage.
10 critical cards read on page 1 of 962 ratings; cord failure or reach appears in 3 independent reviews, a one-to-two-season life in 3, and poor coverage in 2. 10/10 Verified Purchase, 0 Vine. · critical reviews read August 2026
“I just bought my 3rd advantage cleaner for several years. They clean my fiberglass pool very well! Never have to scrub sides with brush, just first step amd corners, it comes above waterline.”— Home Items, Amazon · Verified owner
FAQ
Who is the Dolphin Advantage for?
Your pool is in-ground and no longer than 33 ft, and you want the best owner record among the corded robots — 4.4★ across 965 owners — for the least money, about $669; it has one brush and no waterline scrub.
What do owners say about the Dolphin Advantage?
4.4★ across 965 owner ratings (Amazon, read 2026-10-26 · global base). What owners complain about: A season, and then the cord. "Worked great... for 1 season"; "I have had my Dolphin Advantage for 2.5 seasons now. I love it, but the cord i[s failing]"; "not as good as the original I purchased 5 years ago — this model has a shorter [cord]". The cord is the specific, repeated weak point, and one owner flags a practical trap around it: on a 33-foot in-ground pool the reach only works if the GFCI is within about six feet of the water. The cleaning itself splits owners — several praise the suction and wall scrubbing, while two say it misses: "it doesn't get all the dirt or scrub the walls well" and "not very smart" about coverage.
What is the warranty on the Dolphin Advantage?
2 years
Warranty — and what changes if you buy it on Amazon
2 years · you are buying this on Amazon
Read it yourself: Maytronics warranty document · we read it . Terms change without announcement, so treat this as a dated snapshot. How warranty works by buy path →
✓ Safety: no active recall — No CPSC recall on any Maytronics or Dolphin pool robot (saferproducts.gov queried 2026-08-13; the two 'Dolphin' hits are a 1995 baby float and a 2003 novelty lighter, unrelated products).
Size your pool first → ·All pool gear →
Data last verified: 2026-10-26. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.