Help me choose
Our pick: Dolphin Quantum
Dolphin Quantum is the Pool Express pick in this matchup. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling.
Liberty
Dolphin Liberty 300
Inground and above-ground pools that need floor and wall cleaning, with fine debris, without a power cord.
ProLine
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Why Dolphin Quantum is our pick
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Liberty 300 or Dolphin Quantum: our take
Dolphin Liberty 300 and Dolphin Quantum are compared on pool fit, cleaning reach, debris handling, controls and ownership details. The recommendation is based on the job the robot must do—not a simple feature count.
Pool fit and cleaning reach
Dolphin Liberty 300 is intended for inground and above-ground pools, while Dolphin Quantum is intended for inground pools. Dolphin Quantum has a published maximum pool length of 50 ft; the other model does not have a verified length in our source material. Dolphin Liberty 300 cleans floor and walls; Dolphin Quantum cleans floor, walls, and waterline. Dolphin Liberty 300 lists Dual DC motors. Dolphin Quantum lists 2 active brushes, SmartNav 2.0 navigation, and Dual DC motors.
Filtration and debris
Dolphin Liberty 300 includes Basket and UltraFilter; Dolphin Quantum includes XXL MaxBin and NanoFilters. Both have documented fine-debris media, so basket capacity and ease of cleaning matter more than fine-particle capability.
Controls and day-to-day ownership
Dolphin Liberty 300 provides no fully published timer, app or remote specification; Dolphin Quantum provides a weekly timer, smartphone control, and included remote control. Dolphin Liberty 300 uses cordless battery power, while Dolphin Quantum uses a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Dolphin Liberty 300 is listed at $1,099 and Dolphin Quantum at $1,649; Dolphin Liberty 300 is $550 less. Each lists a 2-year manufacturer warranty. Pool Express pick: Dolphin Quantum. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling. Choose Dolphin Liberty 300 when it is the better fit for shoppers prioritizing the lower $1,099 starting price.
Feature check: what each robot actually has
A green check means the feature is documented as included. A red X means it is documented as absent. A dash means the source does not make the feature clear.
| Feature | Dolphin Liberty 300 | Dolphin Quantum |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | Yes | Yes |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Not listed | Yes |
| Smartphone app | Not listed | Yes |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | No | No |
| No recharging between cycles | No | YesEdge |
| Built-in UV-C water treatment | No | No |
Unknown is not treated as “no.” Specifications come from the product pages, current catalog records and manufacturer material collected for this site.
Where Dolphin Liberty 300 stands out
Dolphin Liberty 300 is the better fit for shoppers prioritizing the lower $1,099 starting price.
- Is listed $550 lower
- Cleans floor and walls
Where Dolphin Quantum stands out
Dolphin Quantum is the better fit for inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Uses the high-capacity XXL MaxBin for easier top-load debris handling
- Has documented smartphone control
- Runs from continuous plug-in power without a recharge between cycles
Dolphin Liberty 300 vs Dolphin Quantum specifications
Use pool fit first. Price and app control do not make up for a robot that cannot cover the length or surfaces you need cleaned.
| Specification | Dolphin Liberty 300 | Dolphin Quantum |
|---|---|---|
| Best fit | Inground and above-ground pools that need floor and wall cleaning, with fine debris, without a power cord. | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. |
| Starting price | $1,099 | $1,649 |
| Pool type | Inground, Above-ground | Inground |
| Maximum pool length | Not listed | Up to 50 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Cordless | Corded |
| Filtration | Basket, UltraFilter | XXL MaxBin, NanoFilters |
| Scheduling | Not listed | Weekly schedule + app |
| App and remote | Not listed | App + included remote |
| Cable | Cordless | 60 ft with anti-tangle swivel |
| Robot weight | Not listed | 18.3 lb |
| Warranty | 2 years | 2 years |
Choose Dolphin Quantum
Dolphin Quantum is the Pool Express pick in this matchup. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling.
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