Dolphin Liberty 300
The SKIP at this price — Floor/walls/waterline · Maytronics reliability · no fire-recall history
Contender in the Light Heavyweight division — The Best Cordless Pool Robots Under $1,500 (2026): Beatbot Sora 70 vs Polaris Freedom Plus vs Dolphin Liberty 300
Specs
| Cleans | Floor, walls + waterline |
| Runtime | 2.5 hr per cycle |
| Pool size | Up to 33 ft (length-rated) |
| Navigation | CleverClean scanning |
| Filtration | Fine + ultra-fine cartridges (µm not published) |
| Owner rating | 3.7★ · 97 |
| Battery | Not stated |
Filtration is rated in microns (µm — millionths of a meter): the smallest particle the filter reliably traps, so a lower number is a finer filter. A human hair is ~70 µm; ultra-fine (~3–10 µm) catches the silt and dead algae that make water hazy. "µm not published" means the maker states no number — which is information in itself.
Pros
- From Maytronics/Dolphin — the most established, reliable name in pool robots, with no battery-fire recall history
- Cleans floor, walls, and waterline; magnetic-connect charging and easy Click-Up removal
- The simplest of the three to live with; 2-year warranty
Cons
- No surface skimming, and a shorter 2.5-hour cleaning cycle
- Best for medium pools (up to 33 ft) — not the largest backyards
- Less smart navigation than the camera/ultrasonic flagships
“Maytronics dominates the market with its Dolphin robots, recognized for their reliability and solid after-sales service.”— Pool Planet
✓ Safety: no active recall — No active CPSC recall found (checked Jun 2026). Maytronics has a clean cordless safety record; standard lithium-battery care applies.
Battery replaceability & 8-yr cost → · Size your pool first → ·All pool gear →
Data last verified: July 2026. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.