Underwater Warfare: How Chinese Swimming Pool Robot Manufacturers Redrew the Global Landscape in Five Years
Five years ago, if you wanted to buy a pool cleaning robot, there were basically only three options: Israel's Dolphin, Spain's Polaris, or the United States' Hayward. The products of these three companies were generally priced between $600 and $1,500, with generous profit margins, and the market landscape was so solid that it was almost suffocating.
Change came faster than anyone expected.
In 2025, in the global shipment statistics of pool cleaning robots, the names of Chinese manufacturers have crowded densely into the top of the list. Aiper has expanded its products to the home page recommendation slots of Walmart and Amazon through a pure brand operation strategy; from its factory in Tianjin, Wan Yuan Technology has stood at the threshold of Hong Kong stock IPO as one of the top three manufacturers in the world in terms of annual shipment volume; in an office in Bao'an, Shenzhen, Soreo has managed to push the cost of a wall-climbing capable brushless motor robot down to $80 — a price less than one-third of that of competing products with the same functions.
This is not a breakout by one or two companies, but a collective charge of an entire industry. When the cleaning demand of more than 34.1 million swimming pools worldwide collides with the supply chain efficiency of Chinese manufacturing, a track that has been underestimated for 40 years is being completely rewritten.
Cracks in the Monopoly
Pool cleaning robots are not a new category. As early as 1983, Israeli company Maytronics launched the first generation of Dolphin pool cleaning robots. In the nearly 40 years that followed, this industry formed a fairly stable competitive structure: three European and American companies divided more than 70% of the market share, relying on deep channel relationships, decades of brand accumulation, and layers of encrypted patent barriers.
But the maintenance of a monopoly position depends on a key premise: slow technological iteration, so that latecomers cannot find differentiation points sufficient to break user inertia. And this premise was dismantled by two factors simultaneously in the past five years.
The first factor is the plummeting cost of lithium batteries and DC brushless motors. The core performance indicator of a pool cleaning robot — battery life — is essentially a problem of battery and motor efficiency. Ten years ago, a 5000mAh lithium battery might cost hundreds of dollars, and a high-performance brushless motor was also expensive; after 2023, China's lithium battery supply chain and motor industry have pushed the costs of these two items to rock bottom. This means that a new Chinese pool robot manufacturer can use half or even one-third of the hardware cost of established manufacturers to make products with longer battery life.
The second factor is even more fatal: patent barriers are no longer a moat. The core patents of traditional pool cleaning robots are concentrated at the mechanical structure level — such as cable retraction mechanisms, swing-arm type wall collision steering devices, etc. But the new generation of Chinese manufacturers has directly skipped these patent minefields in terms of technical routes. Ditec Technology used non-contact magnetic induction to replace mechanical wall collision and obtained its own US invention patent; Soreo brought the military-grade USBL acoustic positioning system to the civilian level, pushing the cost down to less than 100 RMB. These are not design speculations to bypass patents, but redefining products with a completely new technical path — the patent libraries of established manufacturers have suddenly changed from a deterrent weapon to a pile of outdated technical archives.
The superposition of these two changes has torn a crack in the seemingly impregnable global pool robot market. And the Chinese enterprises that rushed into this crack brought something that made established manufacturers more headache than technology: price.
Price Redefined: How Much Should This Category Actually Cost?
A question worthy of in-depth exploration: How much is a pool cleaning robot actually worth?
Almost no one has seriously asked this question in the past 40 years. Dolphin's pricing system is built on the logic of "replacing the labor cost of pool maintenance" — in Europe and America, hiring someone to clean a pool often costs hundreds of dollars at a time, and thousands of dollars a year. A robot that can be used for three or four years is sold to you for more than a thousand dollars, which is a good deal no matter how you calculate it. Hayward and Polaris's pricing strategies are essentially the same accounting method: benchmarking against labor costs, not hardware costs.
The emergence of Chinese pool robot manufacturers has completely torn apart this pricing logic.
Deng Zhuoming, the founder of Soreo, put it bluntly: "Based on the cleaning functions that can be realized now, this product should be priced between $300 and $400. This price is already the ceiling, and any higher than that, I think it's just harvesting IQ tax." Its SAT 1X is priced at $199, and the SAT 2X sells for $399. Both have wall-climbing capabilities and brushless motors, while products with the same functions on the market generally range from $500 to thousands of dollars. The key is that he is not losing money to make a splash — the unit cost is controlled at $80 to $90, and the profit margin is more generous than many American brands that sell for more than a thousand dollars.
Wan Yuan Technology took a different path. As the top three pool cleaning robot manufacturers in the world and the number one in China, it also started its business by doing ODM OEM for overseas brands. Before 2022, the revenue share of Wan Yuan's own brand was only 6.31%, and by 2025, this figure soared to 83.5%, while the gross profit margin steadily increased from 56% to 62.9%. This gross profit margin is not outrageous in the consumer electronics industry (Apple's hardware gross profit margin is between 35% and 40%), but in a niche track that has long been dominated by European and American brands, it is enough to make opponents feel uneasy — because with the same functions and a lower ex-factory price, Wan Yuan still has a gross profit margin of more than 60%, which means there is still a lot of room for price wars.
Ditec Technology's approach is more pragmatic. More than 80% of the revenue of this Taizhou factory currently comes from OEM/ODM OEM business. The EXW ex-factory price of the A-series underwater model is set at $400, and the B-series surface solar model is in the $850 range. Its price is more expensive than that of Wan Yuan and Soreo, but much cheaper than overseas brands — according to the company's own judgment, "it is at a medium level in the industry." Instead of spending a lot of money on branding, Ditec Technology chose to invest resources in category coverage, from underwater, water surface, disinfection, handheld to the planned wall-climbing models, trying to complete the full range of production lines.
The three different pricing strategies point to the same market reality: the brand premium of pool cleaning robots is being violently dismantled by the efficiency of the Chinese supply chain. When consumers can buy a wall-climbing, two-hour battery life pool cleaning robot on Amazon for $199, the pricing narrative that "a thousand dollars is not expensive" collapses on its own.
Three Technical Routes, Three Philosophies of Survival
Price wars are only the surface. What really determines who can survive is technological choice.
The technical challenges of pool cleaning robots are concentrated in three aspects: underwater positioning and navigation, energy consumption and battery life, corrosion resistance and durability. Focusing on these three issues, Chinese pool robot manufacturers have differentiated into several distinct technical routes — each reflecting the background genes of the founding team and their judgment of market opportunities.
Acoustic Positioning School: Sinking from Military to Civilian Use. Soreo took this path. Founder Deng Zhuoming has a background in robot R&D at iFLYTEK and practical experience in military underwater projects, so he has a natural technical intuition for underwater acoustic systems. The USBL (Ultra-Short Baseline) acoustic positioning solution he chose was originally used for offshore oil exploration and submarine navigation, and a single system often costs hundreds of thousands of yuan. Deng Zhuoming spent two years bringing this solution to the civilian level, with a unit cost of less than 100 yuan. The logic of the acoustic solution is very simple — there are no feature points underwater, and SLAM based on vision and inertial navigation will be blind when encountering obstacles. The propagation characteristics of sound waves underwater are far better than light. The best proof of whether this judgment is correct is: Maytronics, the parent company of Dolphin which ranks first in global market share, took the initiative to come to Soreo in 2023 to ask it to supply motors and sensors for its new brand.
Magnetic Induction School: Changing the Idea to Solve Wall Collision. The core technology of Ditec Technology is a set of magnetic collision buffer mechanisms, corresponding to US invention patent 1806563. Its idea is simple but exquisite: traditional pool robots need to rely on a mechanical swing arm to turn when they hit the pool wall, but in a corrosive environment containing chlorine and bromine, the metal spring will fail after not being used for a long time. The magnetic scheme uses non-contact magnetic field induction to detect distance changes, which neither wears nor consumes energy. It optimizes energy consumption by more than 50%, and its running time is half longer than that of competing products with the same battery capacity. No peers have followed up on this technology so far — not because they don't know it works, but because patent barriers have blocked the way.
Full-Stack Self-Development School: The Dirty Work That Brand Merchants Avoid. Wan Yuan Technology has built a full-stack R&D system covering lithium battery power supply, underwater sealing, electronic circuits, mechatronics, and AI vision. From 2023 to 2025, the company's R&D expenditure rose from 19.3 million yuan to 30.4 million yuan, with an annual compound growth rate of over 25%, which brought in a full set of technical capabilities from underwater acoustic positioning, AI vision, 3D modeling to autonomous navigation. The cost of this path is extremely high R&D investment and a long verification cycle, but the benefits are also obvious: when the category extends from underwater cleaning to water surface cleaning, disinfection, and wall climbing, the underlying technology is universal, and there is no need to start from scratch for each category.
The three technical routes have no absolute right or wrong, but they are conveying a common signal: the competition in the pool cleaning robot industry has changed from "who has a better-looking shell and who has stronger channels" to "who makes their own core components." In this regard, the self-development rate of Chinese pool robot manufacturers is comprehensively surpassing that of overseas peers — the fact that Dolphin came to Soreo to buy motors is the best footnote.
Brand Merchants and Manufacturers: Two Sides of One Industry
If we shift our focus from technology to business models, we will find that an interesting morphological differentiation is taking place in this industry.
Aiper represents the "pure brand merchant" route. It does not build factories or do underlying R&D. Its core capabilities are brand operation and channel distribution. Aiper's number of reviews on Amazon, content accumulation on social media, and exposure on Walmart and Best Buy shelves are unmatched by its peers. The advantage of this model is that it is lightweight — there is no need to bear the fixed asset depreciation and inventory risks of manufacturing, and the profits earned can be quickly reinvested in marketing to form a growth flywheel. The disadvantage is that costs are uncontrollable — core components are purchased externally, and a portion of the profit of each machine has to be distributed to upstream suppliers.
Wan Yuan Technology took the transformation route of "from manufacturer to brand merchant." It spent 20 years growing from a small OEM factory to one of the top three manufacturers in the world, and then took three years to increase the revenue share of its own brand from 6% to 83%. The cost was that sales expenses skyrocketed from less than 20 million yuan in 2022 to 300 million yuan in 2025 — Amazon advertising fees, e-commerce platform commissions, and brand promotion expenses are all eating into the profits of the manufacturing side. The result is that revenue has doubled (812 million yuan in 2025), but net profit is not as good as it was three years ago.
Ditec Technology chose a progressive route of "supporting the brand with OEM business." In the next five years, it will continue to focus on OEM/ODM OEM business, gradually accumulating industry awareness through B2B channels such as exhibitions, 1688, and Alibaba International, and will not rush to build a reputation among end consumers. This "restraint" appears alternative in the current entrepreneurial narrative of "if you don't burn money, you will be out," but it corresponds to a set of quite healthy data: a customer repurchase rate of more than 70%, a capacity utilization rate of 50% to 60%, and the most critical point — no losses.
Soreo is another existence: the founder clearly stated that he "disdains doing marketing," and a team of more than 40 people has almost all resources invested in technology R&D and supply chain optimization, and then with extreme low prices — retail prices of $199 to $399 corresponding to a cost of less than $90 — it has reached the fourth place in the category in Amazon's natural traffic. Its logic is closer to the underlying belief of the manufacturing industry: as long as the product is good enough and cheap enough, channels will come to you on their own.
The coexistence of these four models shows that the pool cleaning robot track is far from reaching a stage where the landscape is solidified. Who can laugh last depends on an unanswered question: in this industry, is the brand barrier deeper or the manufacturing barrier thicker?
Above the Water Surface and Below the Water Surface
If we only look at underwater cleaning robots, the competition is already quite crowded — Wan Yuan, Soreo, Ditec Technology, Aiper are all shipping products, and the price range is fully covered from $199 to thousands of dollars. But water surface cleaning is a completely different battlefield.
The technical logic of underwater cleaning and water surface cleaning is completely different. Underwater robots need to solve positioning (how to know where you are underwater), corrosion resistance (how to avoid crashing in water containing chlorine and bromine), and energy consumption (how to make a single charge cover a larger cleaning area). Water surface robots face another set of problems: all-weather continuous operation (floating objects on the water surface are generated every moment), anti-interference (wind, water flow, rain), and cleaning accuracy (pollen, oil stains, and fine dust, these "fine floating objects" on the water surface, are far more difficult to deal with than the leaves and sediment at the bottom of the pool).
The largest player in the global water surface cleaning robot market is Betta — it has obvious first-mover advantages, its product stability has been verified by the market for several years, and online sales cover offline channels. However, Betta's products also have several problems that users have repeatedly complained about: hard plastic wheels will leave black marks on the white pool wall, the garbage basket has a small capacity and cannot suck large leaves, and there is no infrared sensor, making it easy to "get lost" in a borderless swimming pool.
These pain points are the entry points for latecomers. Ditec Technology's B-series water surface model is priced at an EXW ex-factory price of $850, which is 10% to 20% cheaper than Betta. At the same time, it has made targeted improvements such as TPR environmentally friendly material guide wheels (no marks left), an enlarged garbage basket version (can suck large leaves such as maple leaves), and infrared sensor probes (adapt to borderless swimming pools). At the core technology level, the self-developed 3000-hour waterproof motor and full ceramic bearings give it the confidence to say that "stability has caught up with or even surpassed Betta since 2026."
Another technical direction for water surface cleaning robots is intelligence — temperature detection, pH value detection, and mobile phone visualization. Ditec Technology's new B-series models are already moving in this direction. The logic is simple: a machine that floats on the water surface every day, if it can also tell you the water temperature and whether the pH value of the water quality is normal, its value will change from a "cleaning tool" to a "pool health steward." The room for added value in this may be greater than the cleaning function itself.
The intensity of competition in the water surface track is currently much lower than that in the underwater track — Betta is the only dominant major player, and not many Chinese pool robot manufacturers are seriously making water surface models. But precisely because of this, it may be the best battlefield for overtaking on a curve. Ditec Technology positions water surface cleaning as a "future priority" and "growth engine," and the logic is here — to secure a position when there are not many opponents, and accumulate sufficient shipment volume and customer data when competition intensifies.
The Next Game
The changes that the pool cleaning robot industry is going through are highly similar to the history of the sweeping robot industry ten years ago.
Before 2014, the global sweeping robot market was dominated by iRobot, with products priced between $400 and $900, and profit margins were extremely high. Then Chinese manufacturers such as Ecovacs, Roborock, and Xiaomi entered the market, using self-developed lidar SLAM solutions, lower prices, and faster iteration speeds, pushing iRobot's market share from more than 60% to less than 30% within five