Cayman
A mid-price corded Dolphin that scrubs the floor and climbs the walls, with a weekly timer. The only hands-on test so far comes from a site linked to a Dolphin dealer, so treat the praise with care.
See the alternatives below, or switch market.
The short version
The Cayman is one of Dolphin's US online-channel robots, sold through certified web dealers rather than big-box stores. It plugs into the mains, scrubs the floor and walls with one active brush over a two-hour cycle, and has a weekly timer, so it can run on a schedule without an app. Maytronics rates it for in-ground and above-ground pools up to 40 feet.
The trade-off is what's left out. Maytronics lists no waterline scrubbing, no app and no swivel on the cable, so the cable can twist over time. It comes with a fine filter, and ultra-fine filters are a separate purchase.
Our take: It's a sensible pick on paper for a simple in-ground pool if you want a timer without an app, but nobody independent has tested it yet. If you want a robot with real test results behind it, the Dolphin Nautilus CC Plus does the same floor-and-walls job and three independent testers liked it. If waterline scrubbing matters, look at the Dolphin Premier.
What we know so far
Limited evidence No independent, finished hands-on review of this robot yet. What follows comes from the maker's specifications and early coverage, and says where something is untested.
We found no independent hands-on test of the Cayman. The only real-pool review comes from The Pool Nerd, which ran it in an 8 × 20ft above-ground pool but is linked to a Dolphin dealer, so it doesn't count here. It praises the timer, the big top-loading basket and the scrubbing brush, and says it climbs walls well. Everything else on this page comes from the Maytronics (US) listing. We'll update it when an independent test appears.
The Pool Nerd, hands-on (Tested in an 8 × 20ft above-ground pool; Site linked to a Dolphin dealer)
No independent test yet
Our search found dealer pages, affiliate round-ups and The Pool Nerd, a review site linked to a Dolphin dealer. None of that is an independent test, so the basics remain unconfirmed: how thoroughly it covers a bigger in-ground pool, how it copes with steps, and how it holds up over seasons. Praise for the Nautilus CC Plus, which independent testers did use, doesn't transfer to this model automatically.
A timer without an app
The weekly timer is the Cayman's main selling point over Dolphin's cheapest robots. Maytronics (US) lists it, with no app and no remote control. The Pool Nerd set it to run on a schedule from a button on the power supply and called the timer the best part of the robot. If you want the pool cleaned while you're away, this is what you're paying for over the Escape.
Walls yes; waterline unclear
Maytronics (US) lists floor and walls, and answers no to waterline scrubbing. The Pool Nerd found it climbed well and scrubbed right up to the edge, near the waterline, in its small above-ground pool. That's one dealer-linked test in a small pool, against the maker's own listing. Don't buy it counting on a clean waterline.
Big basket, basic filter
The filter lifts out of the top, per Maytronics (US), and comes as a fine filter kit, with ultra-fine filters sold separately. The Pool Nerd found the basket large, quick to rinse and slow to fill, even after a windy day, and recommends adding the finer filters if pollen or silt bother you. There's no full-filter warning light.
Prices
Where to buy the Cayman in Australia
Not sold in Australia. Switch market above, or see the alternatives below.
Before you buy
The questions people ask about this one
Does it climb walls and clean the waterline?
It climbs walls, but Maytronics answers no to waterline scrubbing, per the specifications. The Pool Nerd, a dealer-linked site, saw it scrub up to the edge in a small above-ground pool. Nobody independent has tested it yet, so plan to brush the waterline yourself.
Will it work in an above-ground pool?
Yes. Maytronics lists it for in-ground and above-ground pools up to 40 feet, per the specifications. The Pool Nerd ran it in an 8 × 20ft above-ground pool, where the cable reached every corner.
Does it need an app?
No, and it doesn't have one. The weekly timer is set on the power supply, per the specifications. The Pool Nerd set it to clean daily, every other day or every three days, with no phone involved.
How do I clean the filter?
Lift the basket out of the top, unsnap the bottom and rinse it, per the specifications. The Pool Nerd found it quick to rinse and slow to fill. Finer filters for pollen and silt are an extra.
Compare with
Nautilus CC Plus
Three independent testers found it cleans floors and walls quickly, with filters that are easy to empty.
It sometimes sticks on steps, and testers disagree about whether it cleans the waterline.
Premier
Bob Vila rated its waterline cleaning and filters, and it offers a leaf bag among three filter options.
It has no app, and it's heavy to lift out of the water.
Scuba V3
Three testers found its camera genuinely helps this cordless robot find and clear debris on floors, walls and the waterline.
You get about 10 minutes to collect it after a run before it sinks.
Full specifications
Figures come from the manufacturer’s product page unless a source is named. A blank means nobody we trust has confirmed it.
Owner reviews
Own a Cayman?
Tell people how it’s held up: cleaning, maintenance, faults and support. Owner reviews are shown separately from expert tests and never mixed into the score.
Sources
Everything cited on this page. Expert scores are shown as the reviewer gave them.
- The Pool Nerd: Dolphin Cayman robotic pool cleaner review (2026 model) · Pool Nerd ApprovedHands-on · Tested in an 8 × 20ft above-ground pool · Site linked to a Dolphin dealer (not counted towards our two-review minimum)
- Maytronics (US): Dolphin Cayman product page (99996135-SPL)Manufacturer