Dolphin~$2,999
Dolphin Sigma
Corded waterline · 150 min cycle
- Pool fit
- No cable length published
- Filtration
- No micron figure published
- Retrieval
- You fish out 24.6 lb
- 3-year warranty
- App control
- $2,999
Cleans: Floor, walls, waterline
Corded waterline~$2,499Dolphin
Dolphin Premier
The Premier is the old-school flagship: a three-hour cycle, a bottom-access multi-layer filter, a full-filter indicator and a three-year warranty, with no app at all. At $2,499 it costs more than most of the app-driven robots in this catalog.
Approx. price
~$2,499
snapshot, not a live price
No cable length published
No micron figure published
You fish out 20.3 lb
the maker lists no self-parking, so it comes out from wherever the cycle ended, full of water
180 min cycle
Best for: Owners who want a three-year Dolphin and have no use for an app
Specifications
- Approx. price
- ~$2,499
- Type
- Corded waterline
- Power
- Corded
- Cleans
- Floor, walls, waterline
- Maker's pool claim
- 50 ft
- Default cycle
- 180 min
- Filter
- Multi-layer filter bag, plus a fine filter kit in the box
- Weight
- 20.3 lb
- Retrieval
- You fish out 20.3 lb
- Pool types
- in-ground
- Warranty
- 3 years
- Cost per swim season
- $833 floor
A specification not listed here is one Dolphin does not publish for this model. It is left blank rather than estimated or borrowed from a sibling.
Features
- Three-hour default cycle
- Bottom-access multi-layer filter
- Full-filter indicator
- Waterline scrubbing
- Three-year warranty
What it does well
- Three years of cover, one of only two corded Dolphins here with that term
- Filter-full light, which the $2,999 Sigma lacks
- Longest default cycle of any corded Dolphin here, at three hours
- Multi-layer filter plus a fine kit in the box
What it gives up
- No app or remote at $2,499, when the $899 CC Pro has an app timer
- Filter opens from the bottom, so the robot has to be turned over to empty it
- $2,499 — the Explorer E50 has app control and a top-loading filter for about half
- In-ground only, while the cheaper E50 and S300 also take above-ground pools
The two lists above come from the maker’s own specifications and this site’s arithmetic on them, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.
What owners say
Reports on Maytronics' old-school flagship span generations and run both ways: one Premier ran 12 years before its motor gave out and another still works at nine (2026), while one died at three years (2025) and another's motor failed six months past the warranty (2026).
On cleaning, one owner with the nano filters cleared a pool of red dust in a few runs, and two say it reaches the waterline and steps, one of them with a 2024 model. Others are less pleased: one new pool still looked dirty after dust storms (2025), and in 2026 one buyer saw it run straight lines and miss parts of the pool while another's never cleans one corner.
It lists at $2,499 with a three-year warranty, no app and an in-ground rating, and one owner's only wish is a remote (2023). It suits a pool with heavy leaf fall, though one owner who fits the leaf bag in the fall finds it a chore to clean, and acorns too big for the opening jam it (2024).
What owners like
- With the nano filters fitted, one owner's Premier removed a pool full of red dust after a dust storm over a few runs and filter cleans, and brushing the walls and floor now turns up nothing (2025).
- Owners rate its leaf bag for heavy jobs: one recommends it for the oversized bag, and another likes that it keeps picking up oak leaves all winter (2024).
- Older units have lasted: one owner's Premier still works well after nine years in a freeform pebble pool, with $25 of new tracks and grip wheels, and another's ran 12 years before the motor gave out (2026).
- It cleans floors, walls, the waterline and steps in two owners' accounts, one of them with a 2024 model, and an owner with a curved pool found it the only one of three robots tried that cleaned the whole pool (2026).
Common complaints
- Coverage disappoints some 2026 buyers: one found it only went back and forth in straight lines and missed parts of the pool, got no help from Maytronics and was returning it; another's never cleans one corner wherever it starts.
- After southwest dust storms, one owner's new pool still looked dirty after a run with the ultra-fine filter, a Hayward TracVac picked up what it missed, and the advice given was to brush and let the pool filter work (2025).
- Reliability is uneven: one owner shipped it back for warranty work three times in about 16 months at about $100 a trip (2025), and another's motor failed six months past the warranty, with a new one costing $500 (2026).
- Raised drain covers can trap it: two 2026 owners report it getting stuck or caught on a bottom drain, one every time it runs and one even with the pump off.
Questions owners ask about the Dolphin Premier
Is the Dolphin Premier good for dust?
One owner with the nano filters says it cleared a pool full of red dust after a dust storm, over a few runs and filter cleans. Another, on a new pool after southwest dust storms, still saw dirt after running it with the ultra-fine filter and was advised to brush and let the pool filter work (both 2025).
What wears out on a Premier?
One owner replaced the tracks and grip wheels for $25 in the robot's ninth year. Motors have gone too: one after 12 years, revived with an open-box part, and one six months past the warranty, where a new motor costs $500 (all three reports 2026).
Premier or Nautilus?
One Nautilus CC Plus owner tried a Premier, found it fine but not a huge improvement, and planned to return it (2026), while a CC Supreme owner wishes they had bought the Premier for its large leaf bag (2024). The Premier lists at $2,499 with no app.
Others in the same part of the catalog
Dolphin~$1,499
Dolphin S300
Corded waterline · 120 min cycle
- Pool fit
- No cable length published
- Filtration
- No micron figure published
- Retrieval
- You fish out 18.5 lb
- Caddy included
- 2-year warranty
- Waterline scrub
Cleans: Floor, walls, waterline
Dolphin~$1,329
Dolphin Explorer E50
Corded waterline · 120 min cycle
- Pool fit
- No cable length published
- Filtration
- No micron figure published
- Retrieval
- You fish out 19.2 lb
- 2-year warranty
- Filter-full alert
- 3 cycle lengths
Cleans: Floor, walls, waterline