Introduction
Put the Aquabot REVA next to the Dolphin Cayman and you get two robots that each do something really well. I bought both and ran them in my own pools to figure out which one gives you the best mix of cleaning, features, and value. The question was simple: which one earns its price?
The REVA won me over with its waterline cleaning and its gyroscope. Together they let it cover every part of the pool, including the spots cheaper robots skip. In my testing it handled floors and walls thoroughly and gave me genuinely hands-off cleaning that holds up against machines costing a lot more.
"The REVA cleans corner to corner and doesn't ask much of you."
Its dual-layer filtration is another reason I like it. The fine and ultra-fine layers together catch a lot of the small stuff, though it stops short of the NanoFilters you'll find on the high-end models. Between the competitive price and the app for remote control, the REVA covers a lot of pool owners nicely.
The Dolphin Cayman comes at it from the automation angle. My favorite thing about it is the programmable weekly timer, which lets you set the whole week's cleaning schedule in a few taps. No more flipping it on and off by hand, which is about as close to set-it-and-forget-it as these robots get.
The Cayman also runs the MaxBin, which gives you a roomy, simple place for all the debris to collect. Its HyperBrush scrubs with twice the muscle of a standard brush, and the Hypergrip tracks keep it planted on the pool surfaces for a solid clean. The one knock is that it doesn't reach the waterline, which is where the REVA has an edge.
"Set the timer, walk away, and the Cayman just handles the week for you."
On warranty and support, both hold up well. The Cayman gets a two-year warranty with Maytronics behind it, and their support is as good as it gets in this space. The REVA also carries a two-year warranty, so either way you're covered for the long haul without surprise costs.
So here's the deal: both the Aquabot REVA and Dolphin Cayman are worth your money, they just win in different areas. The REVA shines on waterline cleaning and filtration, while the Cayman makes the whole thing easier with automation and strong scrubbing. Which one's right comes down to your pool and your budget.
If you want the deep dives, here are my full write-ups: Aquabot REVA Review and Dolphin Cayman Review. And for a wider look, browse my best robotic pool cleaners of the year.
How We Test
When I test the Aquabot REVA, I zero in on three things: pool coverage, filtration, and the features and warranty. I keep each test tied to how you'd actually use the robot at home, not some ideal scenario. For coverage, I watch how well the REVA navigates and cleans the whole pool, walls and waterline included.
I ran the REVA's dual-layer filtration over a bunch of cycles to see how it handled both big debris and the fine stuff. It did well, keeping the water clear cycle after cycle. It doesn't have the NanoFilters you get on premium models, but for its price it holds its own.
"Two filter layers, and the fine particles didn't stand a chance."
For features and warranty, I leaned on the app and the programmable timer hard for three months. Being able to control it and get updates from inside the house made it genuinely easy to live with. And the two-year warranty means you're set for the long haul.
Then I moved to the Dolphin Cayman and tested its automation, ease of use, and cleaning. Right out of the box, the programmable weekly timer stood out. It lets the robot run on its own, so you're not flipping it on and off. Over three months I set all kinds of schedules and kept an eye on how it did.
"Program the week once, and the Cayman just runs itself."
I also dug into the Cayman's filtration, with the MaxBin as the star. It has over 50% more capacity than the previous generation, so it stored a ton of debris before it needed emptying. Rinsing it out is dead simple, which keeps the upkeep to almost nothing.
Last, I checked the Cayman's overall coverage. Its SmartNav 2.0 maps the pool so it doesn't miss spots, and the Hypergrip tracks plus HyperBrush scrubbing give you a strong clean on the floor and walls. It doesn't reach the waterline, which is worth knowing, but the rest of the pool comes out great.
Both the Aquabot REVA and Dolphin Cayman brought real strengths. The REVA leans on its gyroscope navigation and waterline cleaning, while the Cayman wins on automation and that big MaxBin debris capacity. Either way, my testing should help you pick the right one with confidence.
Want more options? Check out my full reviews of the best pool robots of the year. They'll give you the detail you need to buy smart.
Coverage
Comparing coverage on the Aquabot REVA and the Dolphin Cayman, each one has its own strengths. Both are trying to clean thoroughly, but how they go about it and how much of the pool they actually reach are pretty different.
The Aquabot REVA impressed me right away with how complete its coverage is. It climbs walls without any drama and scrubs the waterline with real precision. A lot of that comes down to its gyroscope, which keeps it balanced and oriented, and that's a feature you rarely see even on pricier robots.
The REVA uses planetary gears and rubber tracks for extra grip and power, so it doesn't miss spots as it moves across the surfaces. Floors, walls, waterline, it stays efficient across all of them.
"The REVA cleans corner to corner and doesn't ask much of you."
The Dolphin Cayman is aimed more at mid-range cleaning. It does the floors and walls really well, but it comes up short at the waterline. Its HyperBrush technology makes up for that some, scrubbing about twice as hard as a standard brush, so everything it does reach ends up spotless.
The Cayman's SmartNav 2.0 keeps it on a methodical path, avoiding both missed spots and pointless repeat passes. It can't do the waterline, sure, but the floor and wall cleaning is genuinely clean and efficient.
"Set the timer, walk away, and the Cayman just handles the week for you."
On the scores, the Aquabot REVA takes a perfect 10/10 for covering the waterline, walls, and floor. That makes it the one to get if you want truly all-around cleaning. The Dolphin Cayman scores strong but a notch lower at 9/10, mostly because it skips the waterline.
Both robots clean really well, but the REVA's full coverage gives it the slight edge here. The Cayman is still a strong choice depending on what your pool needs, but the REVA is the more complete cleaner.
Want the full picture? Here are my complete reviews: Aquabot REVA Review and Dolphin Cayman Review. Each one goes deep on performance, features, and value.
You can also check out my best pool robots of the year to see the other top performers and make a smart call.
Filters
Look at the filters on the Aquabot REVA and the Dolphin Cayman and you'll see two different philosophies on handling debris. The REVA runs a dual-layer filtration system that pairs a fine and an ultra-fine layer to catch a wide range of debris.
That setup lets the REVA grab big debris like leaves while still filtering out the smaller particles that cloud your water. What it doesn't have is NanoFilters, which are the ones that really lock down microscopic debris.
"Two filter layers, and the fine particles didn't stand a chance."
The Dolphin Cayman goes with the MaxBin filter basket instead. It's a lot bigger than previous generations, so it swallows large chunks of debris without needing to be emptied all the time. And unlike the REVA, the Cayman gives you optional NanoFilters for finer filtration, which is a real help in pools that fight fine particles.
Both systems have their upsides. The REVA's dual-layer setup captures a broad range of debris efficiently, and the Cayman's bigger MaxBin means you're doing maintenance less often. On raw filtration, the NanoFilter option gives the Cayman a slight edge for pools with fine particle trouble.
Which one's better really depends on your pool. If you want wide-reaching filtration that grabs big and small debris without fuss, the REVA's dual-layer filters do the job well. If you'd rather have flexibility and less frequent cleanup, the Cayman's MaxBin plus optional NanoFilters is the way.
"The MaxBin's size plus the NanoFilter option is a hard combo to beat."
Now the scores. The Aquabot REVA sits at a filter score of 8, thanks to that dual-layer system. The Dolphin Cayman edges ahead at 10, reflecting its bigger capacity and the NanoFilter option. That flexibility is what makes it so effective across different pool conditions.
On filtration, the Dolphin Cayman takes it. The larger capacity and the option to add NanoFilters mean a clean pool with barely any effort from you.
Bottom line: both the Aquabot REVA and the Dolphin Cayman have solid filter systems, but the Cayman wins on adaptability and easy maintenance with its MaxBin and NanoFilter options. That's what makes it the pick for all-around pool cleaning.
For more side-by-side detail, dig into my full reviews: Aquabot REVA Review and Dolphin Cayman Review. They'll help you land on the right robot for your pool.
Feature Set
Comparing the Aquabot REVA and the Dolphin Cayman, the feature sets are where they part ways. The REVA comes with a gyroscope for better navigation, waterline cleaning, and app connectivity so you can run it from your phone. That combination makes it a standout on tech and ease of use.
The Dolphin Cayman puts its chips on automation and convenience. Its programmable weekly timer is the headline feature, letting you set a full week's cleaning schedule in advance. That automation cuts way down on the effort of keeping the pool clean, and it's about as user-friendly as these robots get.
"Program the week once, and the Cayman just runs itself."
Both robots use their tech to clean smarter. The REVA's app lets you control and schedule cleanings from anywhere, which is great if you like running things from your phone. The Cayman's automation, like that programmable timer, is built for busy people who just want it handled without thinking about it.
On the standout features, the REVA's gyroscope and waterline cleaning are tough to beat. They let it clean every part of the pool, including the waterline that so many robots ignore, and that gives the REVA a real edge in reach.
The Dolphin Cayman's strength is filtration, led by the MaxBin. Its roomy design collects big debris and cuts how often you empty the basket. The optional NanoFilters add finer filtration, which makes it flexible across different pool conditions.
"The MaxBin's size plus the NanoFilter option is a hard combo to beat."
On the feature scores, the Aquabot REVA lands a 9, reflecting its advanced tech and all-around cleaning. The Dolphin Cayman edges just ahead at 9.4, on the strength of its easy automation and flexible filtration. Each one brings a different set of strengths, so the right pick really comes down to what you value.
Conclusion
Wrapping up the Aquabot REVA versus Dolphin Cayman matchup, both robots bring a lot to the table, just for different kinds of pool owners. The REVA scores 9/10, earned on its full waterline cleaning, its efficient dual-layer filtration, and its app connectivity.
The Dolphin Cayman lands at 9.4/10, thanks to its cleaning power, the MaxBin filter system, and the automation from that programmable timer. That mix makes it a serious contender.
Head to head, the Dolphin Cayman comes out on top, mostly on its automation and overall cleaning efficiency. That said, if waterline cleaning is a dealbreaker for your pool, the Aquabot REVA is still a great choice.
If you'd rather look at other options, the Dolphin Quantum and Dolphin Premier are both excellent, with advanced features and strong cleaning. For the full rundown, see my detailed breakdowns in the best robotic pool cleaners of the year.
Either way, both of these are excellent robots. The right one really comes down to your pool and what matters to you. For the full detail, take a closer look at my reviews of the Aquabot REVA and the Dolphin Cayman.
Alternate Robots
Still shopping for the right robotic pool cleaner? There are a few other strong options I'd want you to see. The one that keeps performing for me is the Dolphin Premier. Its Multi-Media filtration is the draw, giving you three filter choices: an oversized leaf bag, a standard cartridge, and NanoFilters. That flexibility lets it handle basically anything that lands in your pool. Add the dual scrubbing brushes and waterline cleaning, and it keeps the whole pool clean top to bottom.
"If you want one robot that adapts to any debris, the Premier is it."
Another one worth a look is the Dolphin Quantum. It runs the PowerJet 3D mobility system, which pushes the robot into every part of the pool, including the hard-to-reach waterline. The Quantum has the bigger XXL MaxBin filter and ships with both standard fine and NanoFilters, so it handles a lot of debris and filters it fine.
Last, the Dolphin Sigma deserves a mention. It's built on a commercial-grade platform with three high-powered motors and a gyroscope, which gives it precise navigation and serious cleaning power. It also has app connectivity for controlling and scheduling from anywhere, which makes it easy to live with. The Sigma includes both standard and NanoFilters for complete filtration.
If you're still torn, the Dolphin Premier is the one I'd point to first, mostly for that versatile Multi-Media filtration. It adapts to just about any cleaning situation and keeps the water clear. For more reviews and comparisons, dig into my picks for the best pool robots of the year.