Written by: Jin Fujisaki / Published: 2026-02-18
When you think of pool robots, you picture long power cables and hoses getting tangled up, with a human ultimately having to untangle them. But Aiper's flagship "Scuba V3 Ultra" is completely cordless. Just charge it and toss it in the water. From there, four brushless motors and tank-like treads push it across the pool floor like an armored vehicle.
What's truly astonishing is its "wall-climbing" performance. It powers its way up vertical walls, and once it reaches the waterline—where grime tends to accumulate the most—it begins moving sideways along it. The way it scrubs away the slime with its brushes seems to defy gravity. It also clears step transitions with ease, achieving cleaning with no blind spots.
| No tolerance for cloudiness. "3-micron" filtration capability
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It doesn't just pick up debris. The V3 Ultra draws in water with massive suction power (in the 4000 GPH class) and filters it through an internal dual-filter system.
It captures not only large debris like fallen leaves and insects, but also invisible algae and fine dust particles down to a minimum of 3 microns. After it finishes cleaning, the clarity of the pool water is visibly improved. It's a machine that fuses a "vacuum cleaner" with a "water purifier." Letting it swim around once a week may even reduce your consumption of expensive chemicals like chlorine.
| It "sees" obstacles. Sonar-based avoidance
image TechGoogles
The previous model used "random navigation," changing direction only after bumping into walls. The V3 Ultra, however, is equipped with "WavePath Navigation 4.0." Ultrasonic sensors and a camera detect obstacles ahead, allowing it to smoothly avoid collisions before they happen.
It maps the shape of your pool and cleans efficiently in an "S-shaped pattern" that covers every area, so no battery life is wasted. Even in large pools, no spots are left uncleaned. Through the app, you can specify cleaning zones or switch modes—for example, "focus intensively on the walls only."
| Even the water surface gets cleaned. The "Skimmer Mode"
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Until now, robots have specialized in "the floor" and "the walls." But by deploying its optional float attachment, the V3 Ultra rises to the surface and transforms into "Skimmer Mode," collecting floating leaves and insects.
The surface, the walls, and the floor. This single unit can handle all three of the pool's major cleaning zones. There's no longer any need to walk around the pool wielding a long-handled net. Under the summer sun, all you need to do is sip a cocktail in your deck chair.
| Summary: Hire a "pool boy" for 200,000 yen
image Android Authority
The price ranges from roughly 180,000 to 200,000 yen. That's expensive for a home robot, but considering the cost of hiring a professional pool service, it pays for itself within a single season.
The Aiper Scuba V3 Ultra frees you from tedious maintenance and leaves only "the joy of swimming." On a weekend morning, do you look at the shimmering water and sigh, "I have to clean it"—or do you smile and say, "Time to dive in"? It's this yellow submarine that makes the difference.
