Pool Context & Setup
Tested in an above-ground, 36×24 oval pool (rectangular center with curved ends), though this cleaner is marketed primarily for in-ground pools. Findings may vary on flat-walled, in-ground setups.
Navigation & Pattern Mapping
The C1 uses basic preset patterns (rectangular/circular) rather than true spatial mapping. For my oval layout, the app recommended a "star pattern"—measuring length and width midpoints to radiate outward from the center. In practice, the central point drifted, causing sporadic coverage, repeated paths, and a dead battery before it could cover the whole floor. The firmware needs better algorithms for oval and hybrid shapes.
Wall Climbing & Floor Obstacles
* Vinyl Wall Performance: Traction on vinyl-lined steel panels is surprisingly strong. It scrubbed off light algae, though heavy stains still require a manual brush.
* Bowed Wall Crests: Our pool's side panels have slightly bowed outward over time. In these curved crests, the outer tracks lost contact, leaving the robot spinning in place for far too long before timing out. Interestingly, it once traveled horizontally around the lower wall like a race car, which was actually much more effective than vertical climbing.
* Concrete Ladder Pad: It also got stuck straddling a 1-inch raised concrete ladder pad on the floor. Because it tracks progress by wheel rotation timing rather than motion or optical sensors, it doesn't realize it isn't moving. A firmware update with a simple dislodge algorithm (e.g., stopping, backing up, and turning 15°) would fix this.
App Setup Quirks
Upon pairing, the app opens to a "Hints" screen. You must accept/confirm this screen before the app unlocks customization and pattern controls. On day one, I assumed there were no app features and ran it manually from the physical button—first-time users should make sure to click through those hints.
Suction & Debris Handling
Vacuuming power is great for solid debris—it picked up fine white sand, leaves, and organic matter with ease. It includes a fine foam insert for trapped debris (not microscopic free-floating algae). It cleans its path well, but because its pattern re-crosses the same spots, it leaves untouched patches on a dirty pool's first pass. It works best for daily maintenance rather than heavy single-pass cleanups.
Charging & Retrieval
* Charging Limitations: The power supply block is not waterproof, and the adapter cord is extremely short. You have to manually haul the wet robot indoors or to a dry area to charge it.
* Retrieval: When the battery dies, it parks at the pool edge. It usually returned to my main deck, but once stopped near a fenced wall, requiring a me to balance on the pool wall supports to fish it out 🙂
Overall Verdict
A solid cleaner with strong suction and great vinyl wall traction, held back by "dumb" pattern navigation, long stuck-timeouts on minor floor/wall flaws, and what seems like an inability to filter fine algae (though unconfirmed). Firmware updates offering better oval patterns and active dislodge logic would easily make this a more useful machine for me. As it stands, it cannot seem to cover all the floor of the pool and I avoid the wall cleaning due to my wall structure … again, if you have an in-ground pool you will likely fall in love with this little cleaner.