The 8 Best Robotic Pool Cleaners
Updated by · How we research
Eight pool robots compared, corded and cordless. The Dolphin Nautilus CC Plus leads for in-ground pools; the Dolphin Escape suits small and above-ground pools. When users buy our independently chosen editorial choices, we may earn commissions to help fund the Wiki.
Corded robots still pull harder: in one independent suction comparison of 24 models, the top three ran on cables and the best cordless unit trailed by about a quarter. Cordless robots trade that for no cable to manage, a battery to charge and a trip to the edge after each run. This guide covers in-ground and above-ground pools.
Editor's Notes
October 23, 2026, by Ezvid Wiki Editors:
The Dolphin Nautilus CC Plus takes the top spot. An independent suction comparison of 24 robots measured it level with pool robots that cost far more, and it never needs charging. The Dolphin Escape moves up for small and above-ground pools, and the Dolphin Nautilus CC Supreme stays for big pools and app control.
We couldn't find a current listing for the Dolphin Sigma or the Dolphin Oasis Z5I, so both are gone, and the Dolphin E10 has given way to the Dolphin Nautilus AG. We dropped the Zodiac Polaris Sport F9550 and Hayward SharkVac XL, both heavy, older designs with little recent evidence behind them. Cordless robots were missing entirely, so the Beatbot Sora 10, WYBOT C2, Aiper Scuba S1 and Beatbot Sora 70 are new.
The evidence for this update was a manometer reading at each robot's intake from that 24-robot comparison, PCWorld's in-pool reviews, the Dolphin safety manual and the CPSC's battery-fire recalls of older Aiper and Wybotics cordless models. Two of the best-tested robots, the Dolphin Premier and Polaris VRX iQ+, appear below as special honors.
Earlier notes
August 6, 2021, by Christopher Thomas:
The handful of tried-and-true automated pool cleaners that we recommended last time are all still great choices. There was one big change worth making, and that was the addition of the Dolphin Sigma in the top spot. It isn't meant to remove the bulkiest debris, but it does such a consistently good job that it's worth skimming the leaves from the pool first. If you want to save some money, the Dolphin E10 is a great choice, while the Zodiac Polaris Sport F9550 remains one of the top ultra-premium options.
May 29, 2020, by Christopher Thomas:
A cursory search will pull up a decent handful of robotic pool cleaners, and in fact a bit more than just the 7 we've listed here. The thing is, these tend to be pretty expensive devices, and in the interest of consumers, we've done our best to determine which are actually good investments in terms of reliable cleaning and durability. One brand has proven to be pretty consistent in the build quality of their products, which is why the Dolphin Nautilus CC Supreme and Dolphin Nautilus CC Plus took the top two spots. One is quite expensive, and the other more reasonably priced, and they both deliver great cleaning capabilities but with differing amounts of smart control. The Dolphin Oasis Z5I also offers smart mapping and Bluetooth connectivity, although its wireless functionality isn't all that helpful, and it tends to run into traction problems on uneven surfaces such as drains. The Dolphin E10 is considerably simpler and has a bit less navigation prowess, but it's pretty affordable for the category. The same can be said for the Dolphin Escape, although it's designed specifically for the smaller dimensions usually held by above-ground pools.
In terms of other brands, there are still some great options, such as the Zodiac Polaris Sport F9550. It's pretty costly but offers a great degree of suction, and its navigation is on a par with the best. The Hayward SharkVac XL also performs extremely well on floors and slopes, but it can't quite compete with high-end models on vertical walls, and those who are even slightly mobility challenged will have a hard time dealing with its significant heft.
One important point to remember when purchasing a pool robot is that not all filters are built equally. Before using one of these for the first time, make sure you've got the right attachments; a large debris filter will have a wider mesh, and for everyday use you'll almost certainly need a fine-mesh filter. It's also good to keep in mind that a cleaning robot is only part of the tool set you'll need to keep everything perfectly tidy. Proper chemical cleaning and manual tools are also important to maintaining a fun and healthy pool.
April 19, 2019, by Jeff Newburgh:
Added an upgraded version of the Dolphin Oasis Z5I due to its powerful twin motors, tangle-resistant swivel cable, and built-in Bluetooth connectivity for programming the unit from any smartphone. I thought the Zodiac Polaris Sport was a worthy addition, thanks to its rear-based water propulsion system and patented vacuuming technology, which helps to ensure superior cleaning results on stairs and in tight corners. I'm sure those things are pain points for many pool owners trying to get the deep end as clean as possible. The self-navigation capabilities of the Nu Cobalt NC74 ensures coverage of large swimming pools, while the unit's padded rollers make it well-adept at scaling walls and removing dirt from any location. Another innovative option is the Dolphin Nautilus Plus, which can use its own scanning technology to map out the best route to efficient cleaning, while its pop-up filter cartridges are super-easy to remove and replace. Although it may be limited to above-ground use, the Aquabot Pool Rover is still a worthy option due to its extra-wide wheels, reusable filter bag, and low-maintenance pump motor. The tank-style tracks on the Dolphin Escape make it a good option for traversing floors with large drains, while the lightweight frame makes it easy to transport. I thought the Hayward SharkVac XL was a good upgrade from the previous model, as this one can automatically reverse its direction if it happens to come out of the water upon cleaning on the water line. Finally, I added the Aquabot X4 for its compatibility with all pool types and the capacity to move up to 85 gallons of water per minute.
Special Honors
Dolphin Premier Maytronics' corded Dolphin Premier posted the strongest intake suction in ActuallyUsed's 24-robot comparison and comes with fine and ultra-fine filters as standard. It's sold through pool dealers and Maytronics' own store. maytronics.us
Polaris VRX iQ+ PCWorld rated this corded, app-controlled Polaris robot its best corded pick, with the best cleaning of any robot it reviewed. Polaris sells it through pool retailers and its own dealer network. polarispool.com
Corded Or Cordless
The trade-off is a long floating cable and a heavy, waterlogged robot to haul out.
A corded robot runs off a low-voltage power supply that sits beside the pool, so it can run a full two-hour cycle as often as you like and has no battery to fade. The trade-off is a long floating cable and a heavy, waterlogged robot to haul out. In ActuallyUsed's suction comparison of 24 robots, measured with a manometer at each intake, the top three were corded, and the strongest cordless model trailed by about 27 percent.
Cordless robots skip the cable and weigh less, and runtimes now range from about 90 minutes to five hours. You do have to charge them after each run and fish them out when they surface or park at the waterline. PCWorld notes that battery packs usually can't be swapped by the owner and that apps lose their connection underwater. Lithium batteries have also caused recalls: the CPSC lists Wybotics' Osprey 700 Max and S1 and Aiper's Seagull Pro for overheating. Charge with the supplied charger only, away from the water, and not overnight while unattended.
Match The Robot To Your Pool
Start with the pool's length. Makers rate robots for pools up to about 33, 40 or 50 feet, and a corded robot's cable has to reach the far end plus the distance to the power supply, which the Dolphin manual puts at least 12 feet from the edge. A robot rated too small leaves the far end dirty or runs out of cable.
Then decide what needs cleaning. Floor-only robots, like the Dolphin Escape and Nautilus AG, suit above-ground pools and owners who brush the walls anyway; The Pool Nerd found the Escape cleaned a small in-ground pool's floor as well as pricier models. Wall climbers cost more, and only some scrub the waterline, where oils and scum collect. Tanning ledges and sun shelves need a robot that handles shallow water, usually a foot deep or more. PoolPad ranks a weekly timer among the most useful features, since it means the robot runs without anyone remembering. Fine filters that trap particles of a few microns help with dust and pollen but clog faster, so they suit pools that are already fairly clean.
Safe Setup And Everyday Care
Maytronics' Dolphin safety instructions apply sensibly to any corded robot: plug the power supply into a GFCI-protected outlet, never use an extension cord, keep the supply at least 12 feet from the pool and a few inches off the ground, and unplug it before you touch the robot. Keep children away while it runs, and don't swim with it in the water.
No robot replaces all the work. PCWorld found the robots it reviewed removed roughly 80 to 95 percent of test debris in a run, so stubborn algae and corners still need a brush now and then. Rinse the filter or basket after every cycle, since a clogged filter cuts suction fast. Store the robot in the shade, out of direct sun, which ages plastic, cables and batteries. Coil a corded robot's cable loosely and let it untwist; most Dolphins have a swivel that helps, but kinks still build up over a season.
How we researched this
We compared 18 pool robots, corded and cordless, read the makers' specifications for the eight finalists and Maytronics' Dolphin safety manual, weighed an independent intake-suction comparison of 24 robots, PCWorld's in-pool reviews and The Pool Nerd's small-pool test, analyzed owner feedback patterns, and checked every brand against CPSC recall notices. Updated October 23, 2026 by Ezvid Wiki Editors.
Sources (11)
- ActuallyUsed: best robotic pool cleaners
- PCWorld: best robot pool cleaners
- PCWorld: Beatbot Sora 10 review
- PCWorld: Beatbot Sora 70 review
- PCWorld: Dolphin Nautilus CC Supreme review
- The Pool Nerd: best robotic pool cleaners for small pools
- PoolPad: best pool robots
- Maytronics: Dolphin user instructions
- CPSC: Wybotics robotic pool vacuum recall
- CPSC: Aiper Seagull Pro recall
- CPSC: Aiper Elite Pro recall
Frequently asked questions
Are robotic pool cleaners worth it?
For most pool owners, yes. A robot handles the routine vacuuming and, on most models, the wall scrubbing, and it uses little electricity. You still empty its filter after each run and brush stubborn algae by hand.
Is Dolphin or Polaris better?
Both make strong corded robots. In independent tests, the Dolphin Premier topped ActuallyUsed's suction readings and the Polaris VRX iQ+ was PCWorld's best corded pick. Dolphin has the wider range of lower-priced models, including floor-only robots for above-ground pools.
Do robotic pool cleaners work in above-ground pools?
Yes, if the maker rates them for it. Floor-only models such as the Dolphin Escape and Dolphin Nautilus AG are built for above-ground pools, and some cordless robots like the Beatbot Sora 10 are rated for both kinds.
How long does a cleaning cycle take?
Corded robots usually run a cycle of about 1.5 to 2.5 hours and can repeat as often as you like. Cordless robots run from about 90 minutes to five hours per charge, then need several hours to recharge.
Can I swim while the robot is running?
No. Dolphin's safety instructions say to keep people, especially children, out of the pool while the robot runs, and to unplug the power supply before handling it.
How long do pool robots last?
Makers don't publish a lifespan, and warranties run one to three years. With rinsed filters and shaded storage, robots typically last several years; on cordless models the battery usually fades first.
