Floor Robots With the Lowest Cost per Warranty Year

Price divided by warranty years is a blunt number, and it is presented as a floor rather than an estimate: a robot can outlast its warranty by years or fail the month after it ends, and warranties differ in what they cover. What it does show is how much of a robot's price its maker is prepared to stand behind. A $500 robot with a two-year warranty and a $1,500 robot with a one-year warranty are not in the same place, however their feature lists compare.

How this list is ordered: Every floor robot with a published price and warranty, ordered by price ÷ warranty years. 42 of the catalog’s robots qualify.

  1. WYBOT A1 robotic pool cleaner

    1WYBOT

    ~$170

    WYBOT A1

    The A1 is a flat-floor robot and nothing more: two hours of floor cleaning, a 180-micron foam filter and self-parking, for pools up to 1,076 sq ft whose floor slopes less than 15 degrees.

    Per warranty year
    $170 (1 yr)
    Pool fit
    ~56 ft (floor only)
    Filtration
    180 µm · sand, grit and leaves
  2. NIYA Sonar 20 robotic pool cleaner

    2NIYA

    ~$199

    NIYA Sonar 20

    NIYA is Maytronics' budget brand, and the Sonar 20 is its $199 floor robot for above-ground pools up to 26 feet.

    Per warranty year
    $199 (1 yr)
    Pool fit
    ~48 ft (floor only)
    Filtration
    No micron figure published
  3. WYBOTC1Cordless floor+wall+waterline

    3WYBOT

    ~$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.

    Per warranty year
    $200 (2 yr)
    Pool fit
    ~62 ft (floor only)
    Filtration
    180 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.

    Per warranty year
    $235 (2 yr)
    Pool fit
    ~65 ftclaims ~80 ft
    Filtration
    150 µm · sand, grit and leaves
  5. Aiper Scuba S1 robotic pool cleaner

    5Aiper

    ~$500

    Aiper Scuba S1

    Aiper's best-known cordless robot is now its entry model: 150 minutes on a full cycle, a gyroscope for straighter lines than random wandering, a 3.5-litre top-load basket and a 50-foot rating.

    Per warranty year
    $250 (2 yr)
    Pool fit
    ~49 ftclaims ~57 ft
    Filtration
    180 µm · sand, grit and leaves
  6. WYBOT C2 robotic pool cleaner

    6WYBOT

    ~$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.

    Per warranty year
    $250 (2 yr)
    Pool fit
    ~68 ft (floor only)
    Filtration
    10 µm · fine dust and algae
  7. Beatbot AquaSense 2 robotic pool cleaner

    7Beatbot

    ~$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.

    Per warranty year
    $266 (3 yr)
    Pool fit
    ~79 ft (floor only)
    Filtration
    150 µm · sand, grit and leaves
  8. WYBOT C2 Vision robotic pool cleaner

    8WYBOT

    ~$630

    WYBOT C2 Vision

    A C2 with a camera.

    Per warranty year
    $315 (2 yr)
    Pool fit
    ~68 ft (floor only)
    Filtration
    10 µm · fine dust and algae
  9. Aiper Scuba S3 robotic pool cleaner

    9Aiper

    ~$650

    Aiper Scuba S3

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

    Per warranty year
    $325 (2 yr)
    Pool fit
    ~79 ft (floor only)
    Filtration
    3 µm · fine dust and algae
  10. WYBOTB1Cordless floor+wall+waterline

    10WYBOT

    ~$335

    WYBOT B1

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

    Per warranty year
    $335 (1 yr)
    Pool fit
    ~56 ft (floor only)
    Filtration
    180 µm · sand, grit and leaves
  11. Beatbot Sora 30 robotic pool cleaner

    11Beatbot

    ~$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.

    Per warranty year
    $350 (2 yr)
    Pool fit
    ~70 ftclaims ~80 ft
    Filtration
    150 µm · sand, grit and leaves
  12. Beatbot Sora 70 robotic pool cleaner

    12Beatbot

    ~$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.

    Per warranty year
    $366 (3 yr)
    Pool fit
    ~70 ftclaims ~80 ft
    Filtration
    150 µm · sand, grit and leaves
  13. WYBOTS2Cordless floor+wall+waterline

    13WYBOT

    ~$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.

    Per warranty year
    $380 (2 yr)
    Pool fit
    ~74 ft (floor only)
    Filtration
    No micron figure published
  14. Beatbot AquaSense robotic pool cleaner

    14Beatbot

    ~$799

    Beatbot AquaSense

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

    Per warranty year
    $400 (2 yr)
    Pool fit
    ~49 ftclaims ~67 ft
    Filtration
    150 µm · sand, grit and leaves
  15. Polaris FREEDOM SC robotic pool cleaner

    15Polaris

    ~$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.

    Per warranty year
    $400 (2 yr)
    Pool fit
    ~43 ft
    Filtration
    No micron figure published
  16. AiperScuba X1Cordless floor+wall+waterline

    16Aiper

    ~$800

    Aiper Scuba X1

    Aiper's X1 scrubs horizontally up to two inches above the waterline, pulls 6,600 gallons an hour through a five-litre basket and a 3-micron MicroMesh layer, and charges on a wireless dock.

    Per warranty year
    $400 (2 yr)
    Pool fit
    ~55 ftclaims ~66 ft
    Filtration
    3 µm · fine dust and algae
  17. Aiper Scuba V3 robotic pool cleaner

    17Aiper

    ~$850

    Aiper Scuba V3

    The V3 is Aiper's AI robot: it plans its path on board and returns to its dock to charge when it finishes, sending a notification rather than waiting to be fished out.

    Per warranty year
    $425 (2 yr)
    Pool fit
    ~55 ft
    Filtration
    No micron figure published
  18. Dolphin Active 15 robotic pool cleaner

    18Dolphin

    ~$899

    Dolphin Active 15

    Built for pools up to 33 feet, the Active 15 pairs a two-year warranty with a weekly timer but no app.

    Per warranty year
    $450 (2 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  19. Dolphin Liberty 200 robotic pool cleaner

    19Dolphin

    ~$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.

    Per warranty year
    $475 (2 yr)
    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  20. Dolphin Liberty 400 robotic pool cleaner

    20Dolphin

    ~$1,429

    Dolphin Liberty 400

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

    Per warranty year
    $476 (3 yr)
    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  21. Aiper Scuba S1 Pro robotic pool cleaner

    21Aiper

    ~$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.

    Per warranty year
    $500 (2 yr)
    Pool fit
    ~55 ftclaims ~66 ft
    Filtration
    3 µm · fine dust and algae
  22. Aiper Scuba X1 Pro Max robotic pool cleaner

    22Aiper

    ~$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.

    Per warranty year
    $567 (3 yr)
    Pool fit
    ~74 ft (floor only)claims ~100 ft
    Filtration
    No micron figure published
  23. Dolphin Nautilus AG robotic pool cleaner

    23Dolphin

    ~$568

    Dolphin Nautilus AG

    A floor-only corded Dolphin built for above-ground pools up to 30 feet.

    Per warranty year
    $568 (1 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  24. Dolphin Liberty 600 robotic pool cleaner

    24Dolphin

    ~$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.

    Per warranty year
    $576 (3 yr)
    Pool fit
    ~55 ft
    Filtration
    No micron figure published
  25. Polaris FREEDOM robotic pool cleaner

    25Polaris

    ~$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.

    Per warranty year
    $600 (2 yr)
    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  26. Dolphin Nautilus CC robotic pool cleaner

    26Dolphin

    ~$649

    Dolphin Nautilus CC

    Maytronics' entry corded robot: one two-hour cycle over the floor and walls of a pool up to 33 feet, with nothing to set up beyond plugging in the power supply.

    Per warranty year
    $649 (1 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  27. Dolphin Explorer E50 robotic pool cleaner

    27Dolphin

    ~$1,329

    Dolphin Explorer E50

    Where the Nautilus line tops out at one year of cover, the Explorer E50 carries two.

    Per warranty year
    $665 (2 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  28. Aiper Scuba V3 Ultra robotic pool cleaner

    28Aiper

    ~$2,000

    Aiper Scuba V3 Ultra

    Two cameras give the V3 Ultra stereo depth, which Aiper says lets it recognize more than 20 kinds of debris and obstacles and slow down near debris instead of scattering it.

    Per warranty year
    $667 (3 yr)
    Pool fit
    No runtime published
    Filtration
    No micron figure published
  29. Polaris FREEDOM Plus robotic pool cleaner

    29Polaris

    ~$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.

    Per warranty year
    $700 (2 yr)
    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  30. WYBOT S2 Solar robotic pool cleaner

    30WYBOT

    ~$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.

    Per warranty year
    $700 (2 yr)
    Pool fit
    ~62 ft (floor only)claims ~80 ft
    Filtration
    180 µm · sand, grit and leaves
  31. Dolphin Nautilus CC Plus Wi-Fi robotic pool cleaner

    31Dolphin

    ~$749

    Dolphin Nautilus CC Plus Wi-Fi

    The long-running CC Plus, now with Wi-Fi and the MyDolphin Plus app for weekly scheduling.

    Per warranty year
    $749 (1 yr)
    Pool fit
    No cable length published
    Filtration
    70 µm · silt and pollen
  32. Dolphin S300 robotic pool cleaner

    32Dolphin

    ~$1,499

    Dolphin S300

    Sold mostly through pool dealers, the S300 is also on Maytronics' own store, and it is one of the few Dolphins whose spec block lists a caddy in the box.

    Per warranty year
    $750 (2 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  33. Beatbot AquaSense 2 Ultra robotic pool cleaner

    33Beatbot

    ~$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.

    Per warranty year
    $766 (3 yr)
    Pool fit
    ~70 ftclaims ~83 ft
    Filtration
    150 µm · sand, grit and leaves
  34. WYBOT S2 Solar Vision robotic pool cleaner

    34WYBOT

    ~$1,600

    WYBOT S2 Solar Vision

    Adding a camera to the S2 Solar gives an AI Vision floor mode that goes straight for visible debris instead of sweeping the whole floor, which WYBOT claims is 20 times faster.

    Per warranty year
    $800 (2 yr)
    Pool fit
    ~62 ft (floor only)claims ~80 ft
    Filtration
    180 µm · sand, grit and leaves
  35. Dolphin Premier robotic pool cleaner

    35Dolphin

    ~$2,499

    Dolphin Premier

    The Premier is the old-school flagship: a three-hour cycle, a bottom-access multi-layer filter, a full-filter indicator and a three-year warranty, with no app at all.

    Per warranty year
    $833 (3 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  36. Dolphin Nautilus EON 100 robotic pool cleaner

    36Dolphin

    ~$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.

    Per warranty year
    $899 (1 yr)
    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  37. Dolphin Nautilus CC Pro robotic pool cleaner

    37Dolphin

    ~$999

    Dolphin Nautilus CC Pro

    Adding waterline scrubbing and a 50-foot rating to the Nautilus line is what the CC Pro is for.

    Per warranty year
    $999 (1 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  38. Dolphin Sigma robotic pool cleaner

    38Dolphin

    ~$2,999

    Dolphin Sigma

    Maytronics' dearest residential corded robot on its US store.

    Per warranty year
    $1,000 (3 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  39. Dolphin Nautilus EON 120D robotic pool cleaner

    39Dolphin

    ~$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.

    Per warranty year
    $1,199 (1 yr)
    Pool fit
    ~49 ft
    Filtration
    No micron figure published
  40. Beatbot AquaSense X robotic pool cleaner

    40Beatbot

    ~$3,999

    Beatbot AquaSense X

    Beatbot's AquaSense X docks into a station that rinses its filter and empties the debris into a 22-litre bin, which Beatbot says lasts up to two months between emptyings.

    Per warranty year
    $1,333 (3 yr)
    Pool fit
    No runtime published
    Filtration
    150 µm · sand, grit and leaves
  41. Dolphin Nautilus CC Supreme robotic pool cleaner

    41Dolphin

    ~$1,349

    Dolphin Nautilus CC Supreme

    Three brushes, a 2.5-hour default cycle and both a fine and an ultra-fine filter kit in the box put the CC Supreme at the top of the Nautilus range.

    Per warranty year
    $1,349 (1 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published
  42. Dolphin Nautilus Titan robotic pool cleaner

    42Dolphin

    ~$1,599

    Dolphin Nautilus Titan

    Maytronics sells the Titan on suction: its spec block lists 5,000 gallons an hour, the highest flow rating of any Nautilus.

    Per warranty year
    $1,599 (1 yr)
    Pool fit
    No cable length published
    Filtration
    No micron figure published

Other shortlists