Pool Cleaning Robots

Run the Waterline Test

Pool robots are sold on cleaning power and bought on coverage. Maytronics and Beatbot both publish ranges split by which surfaces a model handles, which is the clearest signal that floor, wall, and waterline are three separate capabilities rather than one.

The Bot Scout waterline test asks the question the box rarely answers directly: does this model clean the floor only, the floor and walls, or the floor, walls, and waterline. The waterline is where the visible scum ring forms, so a floor-only robot can run perfectly and leave the pool looking uncleaned.

The second half of the test is retrieval. A robot must come out of the water after every cycle, and a unit full of water is considerably heavier than its dry specification. If one person cannot lift it comfortably from the pool edge, the robot will be used less often than planned.

Maytronics Dolphin vs Beatbot: The Two Names Buyers Compare

Maytronics Dolphin and Beatbot are the two robotic pool cleaner brands buyers compare most often, because they represent opposite tradeoffs: established corded reliability versus newer cordless flexibility. Maytronics launched the Dolphin brand in 1983 and has led the corded pool robot market since. Beatbot entered the category in 2022 with a cordless-only lineup built on battery and solar charging.

Both brands pass the waterline test on their higher-tier models, but not on every model in the range. Maytronics' S-series and Premier models scrub floor, wall, and waterline, while its entry-level Explorer E10 covers the floor only. Beatbot's AquaSense 2 and higher models list floor, wall, and waterline coverage too, with a double pass over the waterline.

Retrieval weight does not follow the cord. Maytronics' corded models run roughly 14 to 24 pounds dry across the current range. Beatbot's cordless AquaSense models run heavier, at roughly 23 to 29 pounds dry, because each one carries its own battery and solar panel.

Cord, Cordless, and the Upkeep Nobody Mentions

Corded models trade tangle management for uninterrupted runtime; cordless models trade charging and runtime limits for easier handling. Neither is universally better, and the deciding factor is usually pool size against runtime rather than convenience.

The recurring work is the filter. Baskets and cartridges need rinsing after most cycles, and a filter left dirty reduces suction long before anything mechanical fails. Storage matters too: a robot left in the sun degrades faster than one kept covered.

A pool robot is a narrow-purpose appliance, which is the strongest category in consumer robotics precisely because the task repeats and the failure mode is obvious — the ownership-test framing used across the consumer robots hub.

• Confirm floor, wall, and waterline coverage explicitly before buying.
• Check the lifted weight, not just the dry weight.
• Match runtime and cycle length to your pool size.
• Verify filter fineness against your actual debris type.
• Plan dry, shaded storage and a post-cycle rinse routine.

What It Does Not Replace

Water chemistry is untouched by a cleaning robot. Testing, balancing, and sanitising remain manual or separate-system tasks, and a spotless pool with unbalanced water is still an unusable pool.

Skimming during heavy leaf fall also stays manual in most setups, since surface debris often needs removing before it sinks and fills the robot's filter mid-cycle.

The realistic outcome is that the robot removes the scrubbing and vacuuming and leaves the chemistry, the skimming during storms, and the filter rinsing. That is a good trade for most owners, and it is not the same as a hands-off pool.