Aiper vs Dolphin Pool Cleaners: Which Should You Buy? (November 2026)
Buy the Aiper for a cordless robot that scrubs walls, waterline and floor in one run; buy the Dolphin if you want a corded design for in-ground pools. In this Aiper vs Dolphin pool cleaner comparison, the Aiper Scuba X1 wins overall for most pool owners thanks to its 9.5 score and no-cord setup.
On this page (9 sections)
Buy the Aiper for cordless cleaning that covers the waterline; buy the Dolphin if you prefer a corded robot built for in-ground pools. That is the short answer to the Aiper vs Dolphin pool cleaner question, and the Aiper Scuba X1 takes the overall win for most readers.
The Aiper models run on batteries and charge on a dock, so no cable sits in the water. The Dolphin robots in this comparison plug in and clean on a cord, with designs aimed at in-ground and above-ground pools.
We compared the specs and features of four models to sort out which brand fits which pool. Our score weighs specs, features and buyer feedback against what you're shopping for.
Here is how the Aiper vs Dolphin pool cleaner choice breaks down.
Best for cordless convenience(2026 New) AIPER Cordless Robotic Pool Cleaner
Best for large in-ground poolsDolphin Robotic Pool Vacuum for In-Ground Pools
Aiper vs Dolphin at a glance
The Aiper Scuba X1 is the best overall pick here, and the Dolphin Nautilus CC Plus is the better fit for long in-ground pools. The split comes down to cord versus battery and to which zones each robot cleans.
The table below lines up the four models on the facts that decide the choice: power source, run time, cleaning zones and score. Use it to spot the model that matches your pool before reading the detail sections.
| Product | Best for | Power | Run time | Cleaning zones | Our score |
|---|---|---|---|---|---|
| (2026 New) AIPER Cordless Robotic Pool Cleaner | cordless convenience | Battery powered | Up to 180 minutes | Floor, walls, waterline | 9.5 |
| Dolphin Robotic Pool Vacuum for In-Ground Pools | large in-ground pools | AC/DC corded | About 2 hours | Floor and walls | 8.9 |
| Dolphin Nautilus AG | above-ground pools | AC/DC corded | About 1.5 hours | Floor only | 8.6 |
| Aiper Scuba S1 | app control | Battery powered | Up to 270 minutes in Eco Mode | Floor, walls, waterline, shallow areas | 8.5 |
The Aiper Scuba X1 leads on score at 9.5. It cleans floor, walls and the waterline and reaches 2 inches above the waterline with its WaveLine 2.0 technology.
That coverage is the main reason it wins overall.
The Dolphin Nautilus CC Plus follows at 8.9. It is built for in-ground pools up to 40 feet long, climbs walls and scrubs them, and finishes a run in about 2 hours.
The cord stays in the water while it works.
The Dolphin Nautilus AG scores 8.6 and handles above-ground pools up to 33 feet. It scrubs the floor only and runs about 1.5 hours.
The Aiper Scuba S1 rounds out the group at 8.5 with app control and 4-zone cleaning.
Cordless Aiper vs corded Dolphin: which suits your pool?
Choose cordless Aiper if you want a clean pool with no cable in the water; choose corded Dolphin if a plug-in robot fits how you already run your pool. The cord question is the first real decision in the Aiper vs Dolphin pool cleaner comparison.
A cordless robot needs to be lifted out and placed on its charging dock between runs. The Aiper Scuba X1 comes with a wireless charging dock and takes about 3.5 hours for a full charge.
You trade that routine for a pool without a floating cable.
A corded robot stays plugged in while it works. The Dolphin Nautilus CC Plus uses an AC/DC power supply and runs about 2 hours per cycle.
You don't manage a battery, but the cable does trail through the water.
When the cord becomes a real problem
The cord matters most in a pool with steps, a cover or awkward corners where a cable can snag. A cordless robot skips that tangle entirely.
It also helps when you want the pool free of cables while people swim. You drop the robot in, let it run, then lift it out and store it on the dock.
If your pool is a long rectangle with clear lines and no obstacles, a corded robot is simple enough. The cord lies in open water and the robot just runs its cycle.
Which robot cleans more of the pool?
The Aiper Scuba X1 and Scuba S1 clean more zones, covering floor, walls and waterline; the Dolphin Nautilus AG cleans the floor only. More zones means fewer spots left for you to brush by hand.
The Scuba X1 covers floor, walls and waterline. It reaches 2 inches above the waterline and provides 60 seconds of sustained horizontal cleaning there.
Dual front PVC brushes tackle and polish wall stains.
The Scuba S1 goes a step further with 4-zone cleaning: floor, walls, waterline and shallow areas above 12 inches. Its Caterpillar Treads help it climb and move across all those zones.
The Dolphin Nautilus CC Plus climbs walls and scrubs them, so floor and walls are covered. The Dolphin Nautilus AG scrubs the floor only and its cleaning does not include walls or the waterline.
Steps, ledges and shallow ends
Steps and ledges are where most robots fall short. Neither brand promises step-by-step cleaning here, so plan to brush the steps yourself or pick a robot known for step coverage.
Our guide on which robotic pool cleaner cleans steps compares models on exactly that point. It helps if your pool has wide steps or a sun shelf.
The Scuba S1's shallow-area cleaning covers water above 12 inches. That helps on a sloping entry or a shallow end, but it is not the same as cleaning the steps themselves.
Filtration and water clarity
The Aiper models filter finer debris, down to 3 microns, while the Dolphin models use top-load baskets that are easy to empty. Filter mesh size and basket access are the two practical differences.
The Scuba X1 uses multi-layer filtration with a MicroMesh Ultra-Fine Filter that captures debris as small as 3μm. That fine mesh is the reason it handles sand, silt and algae particles well.
The Scuba S1 uses dual filtration: a replaceable 3-micron ultra-fine filter plus a 180-micron standard filter. Run both and you get fine dust capture without clogging the coarse layer first.
The Dolphin Nautilus CC Plus and Nautilus AG both use a top-load filter basket. You lift the basket out from the top to empty it, which keeps filter care quick.
Sand, algae and fine dust
Fine sand and algae are the hardest debris to catch. A 3-micron filter traps particles that a coarser basket lets pass back into the water.
The Scuba X1's 6600 GPH suction with dual jets is built for exactly that load. Aiper says the dual jets help it pull fine sand, pebbles and algae faster than single-jet designs.
If your pool collects a lot of fine dust or pollen, the finer Aiper filters are the stronger match. If you mostly fight leaves and larger debris, either filter style keeps up.
Run time and charging routine
The Aiper Scuba S1 runs longest, up to 270 minutes in Eco Mode, while the Dolphin Nautilus AG finishes its cycle in about 1.5 hours. How long a robot runs decides whether one charge covers your whole pool.
The Scuba S1 offers up to 180 minutes in Auto, Floor, Wall or Scheduled modes, and up to 270 minutes in Eco Mode through the app. Eco Mode is for daily upkeep; the other modes handle deeper cleans.
The Scuba X1 runs up to 180 minutes and charges in about 3.5 hours on its wireless dock. That is enough for one full clean on most residential pools, then it goes back on the dock.
The Dolphin Nautilus CC Plus runs about 2 hours per cycle and the Nautilus AG about 1.5 hours. Both are corded, so there is no charge time and no battery to manage.
Matching run time to pool size
A longer run time matters more on a large pool. A 40-foot in-ground pool takes more passes than a small above-ground pool, so the 2-hour Dolphin cycle and the Aiper's 180 minutes both suit typical residential sizes.
For a pool that needs daily light cleaning, the Scuba S1's Eco Mode gives you the longest single run. That suits owners who want to schedule a clean and forget it.
If you would rather not think about batteries at all, the corded Dolphin models run as long as the cycle lasts. Plug in, drop it in the pool, and it works.
Setup, storage and daily use
All four robots are drop-in designs; the Aiper models add a charging dock for storage while the Dolphin models coil a cord. Setup is simple either way, and the difference is what you do between cleans.
The Scuba X1 comes with a wireless charging dock. You place the robot on the dock and it charges and stores in one spot, which keeps the pool deck tidier.
The Dolphin Nautilus CC Plus and Nautilus AG are plug-and-play. You plug in the power supply, drop the robot in the pool and switch it on.
The cord needs coiling and storing after each run.
Neither brand needs plumbing or a booster pump. These are standalone robots, so you don't tie up your pool's filtration system to run them.
Keeping the robot working well
Empty the filter after each run. Fine debris builds up fast, and a clogged filter cuts suction on any robot.
Rinse the filter with a hose rather than scrubbing it hard. Fine mesh and ultra-fine filters last longer when you clean them gently.
Our guide on how to vacuum a pool with a robotic cleaner walks through the routine from drop-in to filter care. It covers both corded and cordless robots.
Store the robot out of direct sun when it is not in the pool. The dock helps here, since the Scuba X1 stays put on its charger instead of sitting on a hot deck.
Navigation and coverage patterns
The Aiper models rely on sensors and path algorithms, while the Dolphin models use smart navigation to scan the pool. Each approach aims at full coverage with fewer missed spots.
The Scuba S1 uses 11 high-precision sensors and dual-path algorithms. Its WavePath pattern is designed to cover the pool with minimal overlap, and adaptive navigation adjusts to the pool layout in real time.
The Scuba X1 improves its cleaning paths through over-the-air updates. Aiper says these updates improve adaptability and path planning over time, so the robot can get better at covering your pool.
The Dolphin Nautilus CC Plus and Nautilus AG both use smart navigation. The robot scans the pool to work out an efficient path, so coverage adapts to the pool's shape and surface.
What navigation means for odd pool shapes
An L-shaped pool or one with a beach entry challenges any robot. Sensor-driven navigation helps, but no robot guarantees every corner.
If your pool has a complex shape, look for adaptive navigation and a climbing system that handles your surfaces. The Scuba S1's treads and sensors are built for that kind of layout.
A simple rectangle is easier. Any of these four robots can cover a standard rectangular pool, so navigation matters less than filtration and zones there.
Price tier and value
The Aiper Scuba X1 sits at the top of this group in features and score, while the Dolphin Nautilus AG is the simplest and least expensive style of robot here. Price tier is a rough guide only, since prices change.
Cordless robots with docks and waterline cleaning tend to cost more than basic floor-only corded robots. The Scuba X1 carries the most features in this comparison and the highest score.
The Dolphin Nautilus AG is a floor-only corded robot for above-ground pools. It does less, so it costs less, and it suits a small above-ground pool on a tighter budget.
If you want to spend less on a robot, our list of robotic pool cleaners under 500 covers models that keep the cost down. It helps you see what you give up at each tier.
Warranty and support
Aiper backs the Scuba X1 and Scuba S1 with a 2-year warranty. Aiper also says the Scuba S1 is used by over 500,000 pool owners worldwide and comes with customer support.
Dolphin's warranty is listed as limited for both the Nautilus CC Plus and Nautilus AG. Check the terms for your model, since coverage can vary by retailer and region.
Aiper vs Dolphin: which should you buy?
Buy the Aiper Scuba X1 if you want the best overall robot here: cordless, waterline-cleaning and highest-scored. Buy a Dolphin if you prefer a corded design for a specific pool type.
Here is the decision rule for the Aiper vs Dolphin pool cleaner choice:
- Pick the Aiper Scuba X1 for cordless cleaning of floor, walls and waterline in most residential pools. The wireless dock and 6600 GPH suction make it the top pick overall.
- Pick the Dolphin Nautilus CC Plus for a long in-ground pool up to 40 feet where you want a corded robot that climbs and scrubs walls.
- Pick the Dolphin Nautilus AG for an above-ground pool up to 33 feet where floor cleaning is all you need.
- Pick the Aiper Scuba S1 if app control, scheduled cleans and Eco Mode matter more to you than the top score.
The Aiper vs Dolphin pool cleaner decision comes down to how much you value a cord-free pool against a simple plug-in robot. For most readers, the cordless Aiper Scuba X1 is the stronger buy.
If you are still weighing cordless brands, our comparison of Aiper pool cleaner vs WYBOT pool cleaner looks at another option before you decide. It helps you see how Aiper stacks up against a second cordless brand.
Frequently asked questions
Is Aiper better than Dolphin?
It depends on your pool and your priorities. The Aiper Scuba X1 is cordless, cleans the waterline and scores highest here, while Dolphin models are corded designs for in-ground and above-ground pools.
Cordless freedom versus corded simplicity is the main split.
Do Aiper pool cleaners really work without a cord?
Yes. The Aiper Scuba X1 and Scuba S1 run on rechargeable batteries and charge on a dock, so no cable sits in the water during a clean.
You do need to lift the robot out and place it on the dock to recharge between runs.
Can the Dolphin Nautilus AG clean pool walls?
No. The Dolphin Nautilus AG scrubs the floor only and its cleaning is limited to that zone.
If you need wall cleaning from a Dolphin, choose the Nautilus CC Plus, which climbs and scrubs walls in in-ground pools.
How long does an Aiper pool cleaner run on one charge?
The Aiper Scuba S1 runs up to 270 minutes in Eco Mode and up to 180 minutes in its other modes. The Scuba X1 runs up to 180 minutes.
Charge times differ too: the Scuba X1 needs about 3.5 hours for a full charge.
Which pool cleaner is better for an above-ground pool?
The Dolphin Nautilus AG is built for above-ground pools up to 33 feet long and scrubs the floor. For wall and waterline cleaning in an above-ground pool, a cordless Aiper model gives you more coverage per run.
