Cordless Robots With the Battery for a 16 × 32 In-Ground Pool

A 16 by 32 foot rectangle is one of the most common in-ground pool sizes, and at a 5 ft average depth it has about 992 square feet of floor and wall. That is the number a cordless robot's battery has to cover, not the pool's plan area on the box. Every robot below publishes a runtime long enough to do it with room left over, and the list is ordered by how much room — a robot that barely covers the pool on a new battery will not cover it in its third summer. Where the maker publishes only a floor-only runtime the verdict leaves the walls out, and the row says so.

How this list is ordered: Cordless wall-climbers the maker rates for in-ground pools, whose published runtime covers at least a 32 ft pool at 13 sq ft a minute; ordered by the pool length that runtime supports (floor-only figures after floor-and-wall ones), then by price. 23 of the catalog’s robots qualify.

  1. Beatbot Sora 30 robotic pool cleaner

    1Beatbot

    ~$699

    Beatbot Sora 30

    Moving up from the Sora 10 buys a 10,000 mAh battery, 4.5 hours on a full floor-wall-waterline cycle, four roller brushes and a slightly bigger basket.

    Pool fit
    ~70 ft
    Filtration
    150 µm · sand, grit and leaves
  2. Beatbot Sora 70 robotic pool cleaner

    2Beatbot

    ~$1,099

    Beatbot Sora 70

    The top Sora adds surface skimming (up to seven hours), a six-litre basket, a charging dock and a three-year warranty.

    Pool fit
    ~70 ft
    Filtration
    150 µm · sand, grit and leaves
  3. Beatbot AquaSense 2 Ultra robotic pool cleaner

    3Beatbot

    ~$2,299

    Beatbot AquaSense 2 Ultra

    An AI camera, two time-of-flight sensors and four ultrasonic sensors steer the AquaSense 2 Ultra, and Beatbot rates it for 4.5 hours on walls and waterline, five on the floor and ten skimming the surface.

    Pool fit
    ~70 ft
    Filtration
    150 µm · sand, grit and leaves
  4. Beatbot Sora 10 robotic pool cleaner

    4Beatbot

    ~$469

    Beatbot Sora 10

    Beatbot's entry robot for 2026 promises four hours on floor, walls and waterline from a 7,800 mAh pack, a five-litre basket and parking at the waterline, for $469.

    Pool fit
    ~65 ft
    Filtration
    150 µm · sand, grit and leaves
  5. Aiper Scuba S1 Pro robotic pool cleaner

    5Aiper

    ~$1,000

    Aiper Scuba S1 Pro

    The S1 Pro adds a 3-micron ultra-fine layer under the 180-micron basket, horizontal waterline scrubbing, the Aiper app and a 66-foot rating to the S1 recipe.

    Pool fit
    ~55 ft
    Filtration
    3 µm · fine dust and algae
  6. Dolphin Liberty 600 robotic pool cleaner

    6Dolphin

    ~$1,729

    Dolphin Liberty 600

    Maytronics' big cordless robot runs a three-hour cycle over floor, walls and waterline and is rated for pools up to 50 feet.

    Pool fit
    ~55 ft
    Filtration
    No micron figure published
  7. Beatbot AquaSense robotic pool cleaner

    7Beatbot

    ~$799

    Beatbot AquaSense

    Beatbot's first-generation AquaSense is still on sale, at the same $799 as its successor.

    Pool fit
    ~49 ft
    Filtration
    150 µm · sand, grit and leaves
  8. Dolphin Nautilus EON 100 robotic pool cleaner

    8Dolphin

    ~$899

    Dolphin Nautilus EON 100

    The EON is Maytronics' newer cordless platform, and the Nautilus EON 100 is its direct-store version: 1.5, 2 or 2.5-hour cycles, steps and sun ledges listed alongside floor and walls, a filter-full indicator and the Maytronics One app.

    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  9. Dolphin Liberty 200 robotic pool cleaner

    9Dolphin

    ~$949

    Dolphin Liberty 200

    The Liberty 200 is the entry Liberty: a 2.5-hour floor-and-wall cycle for pools up to 33 feet, with no app and no waterline pass.

    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  10. Dolphin Nautilus EON 120D robotic pool cleaner

    10Dolphin

    ~$1,199

    Dolphin Nautilus EON 120D

    Maytronics' EON 120D adds two things to the EON 100: real waterline scrubbing and a backwash filter, which rinses itself rather than needing to be hosed out by hand.

    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  11. Polaris FREEDOM robotic pool cleaner

    11Polaris

    ~$1,199

    Polaris FREEDOM

    Polaris' cordless robot cleans floor, walls and waterline in 2.5 hours or less, then climbs to the waterline on its own — or when tapped with a pole — to be lifted out.

    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  12. Polaris FREEDOM Plus robotic pool cleaner

    12Polaris

    ~$1,399

    Polaris FREEDOM Plus

    The FREEDOM Plus adds an underwater remote that steers the robot and calls it up to the waterline, Easy Lift retrieval, and a charging caddy that doubles as the transport cart.

    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  13. Dolphin Liberty 400 robotic pool cleaner

    13Dolphin

    ~$1,429

    Dolphin Liberty 400

    A cordless Dolphin that scrubs the waterline and talks to the MyDolphin Plus app.

    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  14. Polaris FREEDOM SC robotic pool cleaner

    14Polaris

    ~$799

    Polaris FREEDOM SC

    The smallest FREEDOM cleans the floor, or floor and walls, in two hours or less and charges by plugging a cord into its back at any outdoor outlet — no station, no caddy.

    Pool fit
    ~43 ft
    Filtration
    No micron figure published
  15. Aiper Scuba S3 robotic pool cleaner

    15Aiper

    ~$650

    Aiper Scuba S3

    Aiper's S3 brings the 3-micron ultra-fine layer down to $650 and parks at the waterline for retrieval.

    Pool fit (floor only)
    ~79 ft
    Filtration
    3 µm · fine dust and algae
  16. Beatbot AquaSense 2 robotic pool cleaner

    16Beatbot

    ~$799

    Beatbot AquaSense 2

    Four hours of floor cleaning on a 10,000 mAh pack, a double pass along the waterline and a wireless charging dock in the box make the AquaSense 2 Beatbot's mid-range robot.

    Pool fit (floor only)
    ~79 ft
    Filtration
    150 µm · sand, grit and leaves
  17. WYBOTS2Cordless floor+wall+waterline

    17WYBOT

    ~$760

    WYBOT S2

    WYBOT's S2 is its flagship without a dock: up to 210 minutes a charge, a three-hour quick charge, seven app modes and six path patterns, and self-parking at the wall.

    Pool fit (floor only)
    ~74 ft
    Filtration
    No micron figure published
  18. Aiper Scuba X1 Pro Max robotic pool cleaner

    18Aiper

    ~$1,700

    Aiper Scuba X1 Pro Max

    Aiper's biggest robot pumps 8,500 gallons an hour, skims the surface for up to 12 hours and claims pools up to 100 feet long.

    Pool fit (floor only)
    ~74 ft
    Filtration
    No micron figure published
  19. WYBOT C2 robotic pool cleaner

    19WYBOT

    ~$500

    WYBOT C2

    WYBOT's 2026 C2 puts a 10-micron ultra-fine filter behind its 180-micron cartridges for $500, and returns to the pool edge when it is done.

    Pool fit (floor only)
    ~68 ft
    Filtration
    10 µm · fine dust and algae
  20. WYBOT C2 Vision robotic pool cleaner

    20WYBOT

    ~$630

    WYBOT C2 Vision

    A C2 with a camera.

    Pool fit (floor only)
    ~68 ft
    Filtration
    10 µm · fine dust and algae
  21. WYBOTC1Cordless floor+wall+waterline

    21WYBOT

    ~$400

    WYBOT C1

    For $400 the C1 climbs walls, scrubs the waterline and parks near the wall when finished, with app scheduling and a choice of S or N paths.

    Pool fit (floor only)
    ~62 ft
    Filtration
    180 µm · sand, grit and leaves
  22. WYBOT S2 Solar robotic pool cleaner

    22WYBOT

    ~$1,400

    WYBOT S2 Solar

    The S2 Solar lives in the pool: it returns to a solar-charged magnetic dock when its battery drops to 20 percent, recharges, and goes back to work on its schedule.

    Pool fit (floor only)
    ~62 ft
    Filtration
    180 µm · sand, grit and leaves
  23. WYBOTB1Cordless floor+wall+waterline

    23WYBOT

    ~$335

    WYBOT B1

    A small wall-climbing robot with a quad roller brush, app control and five modes including waterline-only.

    Pool fit (floor only)
    ~56 ft
    Filtration
    180 µm · sand, grit and leaves

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