Help me choose
Our pick: Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris.
Liberty
Dolphin Liberty 300
Inground and above-ground pools that need floor and wall cleaning, with fine debris, without a power cord.
ProLine
Dolphin Premier
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves.
Why Dolphin Premier is our pick
Dolphin Premier
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves.
$1,999
Buy Dolphin PremierDolphin Liberty 300 or Dolphin Premier: our take
Dolphin Liberty 300 and Dolphin Premier 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 Premier is intended for inground pools. Dolphin Premier 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 Premier cleans floor, walls, and waterline. Dolphin Liberty 300 lists Dual DC motors. Dolphin Premier lists 2 active brushes, SmartNav 2.0 navigation, and Dual commercial-grade motors.
Filtration and debris
Dolphin Liberty 300 includes Basket and UltraFilter; Dolphin Premier includes Standard filter, NanoFilters, Oversized leaf bag, and Multi-Media. 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 Premier provides a weekly timer, power-supply controls, and optional remote control. Dolphin Liberty 300 uses cordless battery power, while Dolphin Premier 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 Premier at $1,999; Dolphin Liberty 300 is $900 less. Dolphin Liberty 300 lists a 2-year warranty compared with 3 years for Dolphin Premier. Pool Express pick: Dolphin Premier. Dolphin Premier cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. 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 Premier |
|---|---|---|
| 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 | No |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | No | YesEdge |
| 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 $900 lower
- Cleans floor and walls
Where Dolphin Premier stands out
Dolphin Premier is the better fit for inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Adds swappable Multi-Media filtration and an oversized leaf bag for changing debris
- Carries a 3-year warranty instead of 2 years
- Runs from continuous plug-in power without a recharge between cycles
Dolphin Liberty 300 vs Dolphin Premier 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 Premier |
|---|---|---|
| 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 and heavy leaves. |
| Starting price | $1,099 | $1,999 |
| 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 | Standard filter, NanoFilters, Oversized leaf bag, Multi-Media |
| Scheduling | Not listed | Weekly schedule |
| App and remote | Not listed | Power-supply controls |
| Cable | Cordless | 60 ft with anti-tangle swivel |
| Robot weight | Not listed | 20.3 lb |
| Warranty | 2 years | 3 years |
Choose Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris.
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