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Robotic Pool Cleaners: What Actually Matters When You Buy
What to look for in a robotic pool cleaner: wall and waterline cleaning, filtration, navigation, cable or cordless, maintenance and warranty.
Key takeaways
- Match the cleaner to your pool: surface, size, shape and whether you need wall and waterline cleaning.
- Fine filters and easy-to-empty baskets matter more than extra features.
- Cordless models are convenient but check real runtime and charging time.
On this page
A good robotic cleaner vacuums the floor, scrubs the walls and filters debris into its own basket, taking load off your main filter and saving you hours of brushing. Because it has its own motor, it also lets a variable-speed pump stay at low speed. With so many models on the market, here is what actually matters.
Types of automatic cleaners
| Type | How it works | Pros | Cons |
|---|---|---|---|
| Robotic | Self-contained motor, pump and filter | Best cleaning, doesn’t load your main filter | Higher price |
| Suction-side | Connects to the skimmer; uses your pump | Cheaper | Loads the main filter; weaker on walls |
| Pressure-side | Uses water pressure from a return line or booster pump | Good on larger debris | May need a booster pump |
The checklist
1. Pool compatibility
Check the cleaner suits your pool’s surface (vinyl, fiberglass, plaster), size and shape, including steps, slopes and ledges.
2. What it cleans
Floor-only cleaners are cheaper. If algae and grime build up on walls or at the waterline, choose a model that climbs walls and scrubs the waterline.
3. Filtration
Look for fine filter options for dust and pollen, and large baskets for leaves. Top-loading baskets are much easier to empty.
4. Navigation
Smarter navigation covers the pool more efficiently and gets stuck less often. Look for reviews that mention corners, steps and main drains.
5. Corded or cordless
- Corded: unlimited runtime; watch for cable tangling (a swivel helps).
- Cordless: no cable, but check real-world runtime, charging time and battery replacement cost.
6. Maintenance and parts
Check how easy it is to clean the filters and how easy it is to buy replacement brushes, tracks and filters.
7. Warranty and support
A solid warranty and accessible service centres matter; robotic cleaners are complex machines.
Getting the best results
- Keep the water balanced; cleaners don’t fix chemistry. Use our pool chemistry chart.
- Empty the basket after every cycle.
- Remove the cleaner after its cycle; don’t leave it in the pool permanently unless the maker says it’s designed for that.
- Keep your main filter clean too; see our filter comparison.
Frequently asked questions
Are robotic pool cleaners worth it?
For most owners who clean regularly, yes: they save time and reduce the load on your main filter.
Can a robotic cleaner fix a green pool?
No. It can help vacuum dead algae, but you need chlorine to kill it; see our green pool guide.
How long does a robotic pool cleaner last?
It depends on the model, use and care. Rinsing it after use and storing it out of the sun extends its life.
Sources
Every article is edited by a human and checked against our editorial policy. Spotted a mistake? Tell us.
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