Best Multi‑Surface (4‑in‑1/5‑in‑1) Robot Pool Cleaners

TL;DR: The iGarden K36 delivers 5,810 GPH suction and a 220‑minute floor‑run battery, all in a 21.6‑lb chassis that’s lighter than most rivals, making it a strong all‑rounder for midsize pools.

The standout spec is its 5,810 GPH suction power, paired with a 4‑liter filter basket that uses a fine 180 µm mesh. A 220‑minute floor‑mode runtime means the unit can clean most pools in a single charge, and the Turbo 200 % mode adds extra punch for stubborn stains. The touchscreen and app control let you start, stop, or schedule cleans from your phone, while auto‑parking returns the robot to its dock without you lifting a finger.

Compared with the four other cleaners in this roundup, the K36 is noticeably lighter than the corded Poolmate Hydro 4 (28.4 lb) and the heavier Beatbot AquaSense 2 (27.0 lb). It also beats the Wybot C1’s 135‑minute battery life, offering 220 minutes on the floor, and outlasts the Zyerch Cordless model’s 150‑180‑minute run‑time. In terms of mass, the K36’s 9,795 g chassis is lighter than Wybot’s 10,480 g and Beatbot’s 12,245 g, though it is heavier than Zyerch’s 891 g unit.

Professional reviewers have praised the K36’s sleek orange‑wheel design and its “lighter chassis” for easier handling. Reviewers highlighted the 3‑D S‑shaped navigation and turbo mode for keeping the robot from getting stuck on walls or floor debris. However, the same reviewers noted occasional Bluetooth/Wi‑Fi pairing hiccups that can affect app reliability, and the gross weight of about 13.5 kg when the robot is water‑filled can make lifting it out of the pool a bit of a chore. Consumer sentiment is limited—there are no user‑generated reviews yet—so real‑world reliability remains harder to gauge.

Additional technical context shows the K36 is built for pools up to 20 × 39 ft (28,000 gal) and claims up to 95 % coverage thanks to its 3‑D navigation algorithm. The auto‑parking feature and touchscreen add convenience, while the 4‑liter filter handles fine dust and debris efficiently. The listed price of $499.99 sits well below the manufacturer’s $799.99 list, positioning it as a premium‑tier option with solid value.

Best for: Above‑ground and smaller inground pool owners who want a lightweight, app‑controlled cleaner with 5,810 GPH suction and 220‑minute battery life.

Avoid if: You have a large deep pool that needs higher flow rates, or you need guaranteed wall‑only cleaning without firmware updates.

TL;DR: The Beatbot AquaSense 2 delivers 240 minutes of cordless cleaning, covers up to 3,230 sq ft, and packs 16 sensors, but its premium $899 price may deter budget‑focused shoppers.

What really sets the AquaSense 2 apart is its 10,000 mAh battery that powers up to 240 minutes of continuous cleaning on a single charge. Combined with a 3,230 sq ft coverage rating, the unit can tackle most residential pools in a single run, eliminating the need to recharge mid‑cycle. Its 16‑sensor suite—including two ultrasonic sensors—feeds the CleverNav™ algorithm for precise navigation and obstacle avoidance, a point professional reviewers frequently praise.

When you line it up against the four other cleaners in this roundup, the AquaSense 2 costs more than any other option, but also offers the longest battery life. The iGarden K36 tops out at 220 minutes on the floor (150 minutes for a full clean), while the Wybot C1 manages about 135 minutes and the Zyerch model provides 150‑180 minutes. In terms of weight, the Beatbot sits at 27.0 pounds—heavier than the iGarden’s 21.6 pounds and the Wybot’s 23.1 pounds, yet lighter than Poolmate Hydro 4’s roughly 28.4 pounds. Its dimensions (228.6 mm H × 457.2 mm L × 431.8 mm W) place it between the bulkier iGarden and the more compact Zyerch.

User sentiment consistently highlights the convenience of cordless operation and the “single‑session full‑pool” cleaning claim. Owners appreciate the auto‑surface parking feature and the double‑pass waterline scrubbing that keeps walls spotless. However, several reviewers note the lack of surface‑cleaning capability, which can be a deal‑breaker for infinity‑edge pools or those that need top‑water debris removal.

Best for: Those prioritizing quality and willing to pay for premium performance

Avoid if: You're shopping on a tight budget — it costs $899.00

TL;DR: The Wybot C1 offers cordless 4‑in‑1 cleaning, 135‑minute runtime, and app control for pools up to 1,614 sq ft, but its 23.10 lb weight and mid‑range price may deter some buyers.

The standout specification is its 3038 GPH suction paired with an ultra‑fine 180 µm filter mesh, which professional reviewers say handles debris efficiently across large pool surfaces. A triple‑motor system powers the robot, which runs for an average 135 minutes on a single charge and can tackle floors, walls, waterlines, steps, and slopes without a cord.

At 23.10 lb, the C1 is lighter than the Poolmate Hydro 4 (28.45 lb) and Beatbot AquaSense 2 (27.00 lb) but heavier than the iGarden K36 (21.60 lb) and far heavier than the Zyerch Cordless Cleaner (1.97 lb). Its 135‑minute battery life is shorter than iGarden’s 220‑minute floor mode, comparable to Zyerch’s 150‑180 minute range, and notably less than Beatbot’s 240 minutes. Priced lower than Beatbot but higher than Zyerch, it lands in the middle of the price spectrum for this group.

Users consistently praise the cordless design for eliminating tangled cords and improving safety around water, while the WYBOT app earns kudos for remote scheduling and OTA firmware updates. Reviewers describe the heavy packaging weight as cumbersome to lift and move. Navigation relies on simple S‑path and N‑path patterns, which some users find less sophisticated than higher‑end models.

Beyond suction and battery, the C1 adds auto‑parking, letting the robot dock itself after a cycle, and OTA upgrades that keep the software current without manual intervention. The LED status indicator provides quick visual feedback, and the triple‑motor configuration ensures steady water pumping even on larger pool areas.

Best for: Entry-level buyers or those on a tight budget

Avoid if: You need advanced features or professional‑grade performance

TL;DR: The Poolmate Hydro 4 is a corded, app‑controlled robot that scrubs floors, walls and waterlines, offering a 50‑foot power cord and dual‑filter system for reliable mid‑range pool cleaning.

The Hydro 4’s standout spec is its 50‑foot AC‑powered cord, letting you reach the far ends of larger in‑ground or above‑ground pools without worrying about battery life. At 19.0 inches tall, 15.0 inches long and 10.0 inches wide, it houses a dual‑filter basket and a two‑pump design that boosts suction for wall‑climbing and waterline scrubbing. A smartphone app manages all of this, working over Wi‑Fi or Bluetooth, with cloud‑based remote control as an extra convenience.

Compared with the four other cleaners in this roundup, the Hydro 4 is the heaviest at about 28.4 lb, out‑weighing the iGarden K36 (21.6 lb), Wybot C1 (23.1 lb) and Beatbot AquaSense 2 (27.0 lb). It also differs by being corded, whereas the Zyerch model is cordless and relies on a battery pack. While iGarden and Wybot list Wi‑Fi or Bluetooth, the Hydro 4 uniquely combines both and adds a cloud function, a feature not mentioned for those rivals.

Users have given the unit a 3.8‑star rating across 208 reviews, noting the easy pick‑up function that climbs the wall after cleaning and the thorough waterline coverage from its lateral movement. Some reviewers, however, point out occasional hiccups with the app’s connectivity and mention that the 28.4‑lb weight makes lifting the robot onto the pool deck a bit of a chore.

Technically, the cleaner runs on 110‑volt AC power and includes a 50‑foot cord for unrestricted reach. The dual‑filter, two‑pump system delivers superior suction for tougher spots, as the manufacturer markets it. The cloud‑enabled remote control and scheduling options let you set cleaning cycles from your phone, reducing the need to manually start the robot each time.

Best for: Most users seeking a balanced, mainstream option

Avoid if: Reliability and user satisfaction are your top concerns

TL;DR: The Zyerch SAT25 offers cordless, wall‑climbing pool cleaning with up to 180 minutes of run time, a lightweight design and a top‑load filter, all at a budget‑friendly price.

The standout spec is its 150‑180 minute battery life, letting you clean most residential pools in a single charge while the robot climbs walls thanks to its built‑in sonar navigation. Its compact chassis measures 215.9 mm high, 358.1 mm long and 353.1 mm wide, and it weighs just 1.97 lb dry, making storage and handling easy.

Compared with the four other robots in this roundup, the Zyerch is dramatically lighter than the Wybot C1, Poolmate Hydro 4, iGarden K36 and Beatbot AquaSense 2, all of which tip the scales at over 20 lb. Its battery life sits between the Wybot’s 135 minutes and the iGarden’s 150‑220 minutes, and it offers a similar 4‑in‑1 cleaning approach without the added cost of Wi‑Fi or app control found on some rivals.

User feedback repeatedly praises the wall‑climbing ability and the quick‑latch, top‑load filter that makes emptying debris hygienic and fast. Professional reviewers also note the solid build with caterpillar treads and dual PVC brushes that keep floors and walls scrubbed. The most common complaints focus on the robot’s low ground clearance, which can miss debris in deeper steps, and the fact that the wet weight feels cumbersome when lifting it out of the pool.

Additional technical details include a maximum filtration size of 300 µm, caterpillar treads for traction, dual PVC brushes for thorough scrubbing, and a top‑load filter for easy debris removal. The manufacturer doesn’t list app control, auto parking, filter mesh size, suction power or OTA upgrade, so those features are not offered.

Best for: Shoppers on a tight budget who want the most for their money

Avoid if: You have limited desk space or need portability