See how these two robots compare—and why the Dolphin Sigma is the easy choice for corded cleaning with no battery downtime.
3-year full-replacement protection
Liberty™ (cordless)
2 years manufacturer warranty
Beatbot adds smart features, but it also adds charging, finite runtime and battery care. Dolphin Max-Series™ and ProLine™ keep the routine simple with continuous corded power and reusable filtration.
Choose a Max-Series™ or ProLine™ Dolphin when immediate repeat cycles, simpler corded operation, model-specific filtration and Maytronics' authorized-dealer network matter more.
Every model below is ready for another full-capacity cycle as soon as the filter is rinsed. Choose the cleaning coverage and filtration that fit your pool.
No multi-hour charging break between cycles.
MaxBin™, NanoFilters™ or Premier MultiMedia™.
Manufacturer warranty, genuine parts and authorized dealers.
Max-Series™ · Best value
Corded floor-and-wall cleaning, a weekly timer and oversized MaxBin™ filtration for pools up to 40 ft.
Max-Series™ + ProLine™ · Best overall
Our all-around pick with floor-to-waterline cleaning, step coverage, app control, an XXL MaxBin™ and NanoFilters™.
ProLine™ · Best filtration
The filtration specialist: standard cartridges, NanoFilters™ and an oversized leaf bag, backed by a 3-year warranty.
ProLine™ · Most advanced
Best match for this comparison
Our connected ProLine™ flagship with app control, gyroscope-guided navigation, waterline cleaning and a 3-year warranty.
| What to compare | AquaSense 2 Ultra | Liberty 300 |
|---|---|---|
| Pool and cleaning system | ||
| Power | Cordless 13,400 mAh battery with a 200 W brushless motor-pump | Cordless battery power |
| Pool rating | Up to 3,444 sq ft per the current FAQ; the page's comparison table separately lists 3,875 sq ft | Up to 33 ft |
| Cleaning coverage | Surface + floor + walls + waterline + qualifying platforms + water clarification | Floor + Walls + Waterline |
| Runtime / cycle | Up to 5 hours floor or 10 hours surface; official pages conflict between 4.5 and 5 hours for walls/waterline | 2.5 hours |
| Charging / repeat cycles | About 4.5 hours to recharge | See the official model specification for charging details |
| Flow rate | 5,500 GPH maximum in Beatbot internal testing | Battery powered |
| Scrubbing system | Four extra-large roller brushes + dual surface side brushes | 1 (active) |
| Filtration | 4.0 L larger basket with 150/250 µm media + 3.7 L thinner basket with 250 µm media | Fine + ultra-fine filter basket + Ultra-Fine Filter kit |
| Controls and ownership | ||
| Navigation | HybridSense® AI mapping with 27 sensors and debris detection | CleverClean™ |
| Scheduling / controls | Scheduled cleaning, mapping history, water-temperature monitoring, OTA updates and above-water remote navigation | Push-button start on the robot |
| Warranty | 3-year full-replacement protection | 2 years manufacturer warranty |
| What is included |
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Sizing note: Beatbot uses pool area while many Dolphins use maximum pool length. Match each rating to your measured pool instead of trying to convert one into the other.
The Beatbot AquaSense 2 Ultra is cordless and rated for up to 3,444 sq ft per the current faq; the page's comparison table separately lists 3,875 sq ft. It cleans surface + floor + walls + waterline + qualifying platforms + water clarification and uses 4.0 l larger basket with 150/250 µm media + 3.7 l thinner basket with 250 µm media filtration. Runtime: Up to 5 hours floor or 10 hours surface; official pages conflict between 4.5 and 5 hours for walls/waterline.
The Dolphin Liberty 300 comes from the Liberty™ (cordless) lineup. It is rated for up to 33 ft and cleans floor + walls + waterline with Fine + ultra-fine filter basket + Ultra-Fine Filter kit filtration. Its standard cycle is 2.5 hours.
The AquaSense 2 Ultra removes the floating cable, but it adds charging time, finite runtime and battery care to the cleaning routine.
We recommend the Dolphin Sigma. It delivers corded cleaning with no recharge delay, plus it is the ProLine™ flagship, combining triple commercial-grade motors with app control and gyroscope-guided SmartNav 3.0™ for Dolphin’s most advanced clean.
Large-pool note: do not substitute a 50 ft residential Dolphin for a pool that genuinely requires a larger published rating. Size the cleaner to the actual pool before comparing convenience or price.
Start with Max-Series™ for corded value, or step up to ProLine™ for our strongest residential filtration and coverage.
For most pool owners, we recommend a corded Dolphin Max-Series™ or ProLine™ robot. Beatbot AquaSense 2 Ultra removes the cable, but it also adds charging time, finite runtime and battery care.
Beatbot adds smart features, but it also adds charging, finite runtime and battery care. Dolphin Max-Series™ and ProLine™ keep the routine simple with continuous corded power and reusable filtration.
No. Beatbot uses pool area while many Dolphins use maximum pool length. Match each rating to your measured pool instead of trying to convert one into the other.
Start with the Dolphin Sigma from the ProLine™: it is the ProLine™ flagship, combining triple commercial-grade motors with app control and gyroscope-guided SmartNav 3.0™ for Dolphin’s most advanced clean.
We reviewed these manufacturer pages and policies on November 9, 2026. Specifications, prices and app features can change.