Help me choose
Our pick: Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. Dolphin Premier runs from continuous plug-in power without a recharge between cycles.
Liberty
Dolphin Liberty 600
Inground and above-ground pools up to 50 ft that need floor, wall, waterline and lounge-area cleaning without a 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 600 or Dolphin Premier: our take
Dolphin Liberty 600 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 600 is intended for inground and above-ground pools, while Dolphin Premier is intended for inground pools. Both are rated for pools up to 50 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Dolphin Premier's documented cleaning system includes 2 active brushes, SmartNav 2.0 navigation, and Dual commercial-grade motors.
Filtration and debris
Dolphin Liberty 600 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 600 provides a weekly timer and smartphone control; Dolphin Premier provides a weekly timer, power-supply controls, and optional remote control. Dolphin Liberty 600 uses cordless battery power, while Dolphin Premier uses a 60 ft corded cable with an anti-tangle swivel. Dolphin Liberty 600 is listed at 25.8 lb versus 20.3 lb for Dolphin Premier; that 5.5 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Liberty 600 is listed at $1,729 and Dolphin Premier at $1,999; Dolphin Liberty 600 is $270 less. Each lists a 3-year manufacturer warranty. Pool Express pick: Dolphin Premier. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. Dolphin Premier runs from continuous plug-in power without a recharge between cycles. Choose Dolphin Liberty 600 when it is the better fit for shoppers prioritizing the lower $1,729 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 600 | Dolphin Premier |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | Yes | Yes |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | YesEdge | No |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | Yes | Yes |
| 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 600 stands out
Dolphin Liberty 600 is the better fit for shoppers prioritizing the lower $1,729 starting price.
- Adds smartphone control
- Is listed $270 lower
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.
- Adds swappable Multi-Media filtration and an oversized leaf bag for changing debris
- Runs from continuous plug-in power without a recharge between cycles
- Weighs 20.3 lb versus 25.8 lb
Dolphin Liberty 600 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 600 | Dolphin Premier |
|---|---|---|
| Best fit | Inground and above-ground pools up to 50 ft that need floor, wall, waterline and lounge-area cleaning without a cord. | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves. |
| Starting price | $1,729 | $1,999 |
| Pool type | Inground, Above-ground | Inground |
| Maximum pool length | Up to 50 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Cordless | Corded |
| Filtration | Basket, UltraFilter | Standard filter, NanoFilters, Oversized leaf bag, Multi-Media |
| Scheduling | Weekly schedule + app | Weekly schedule |
| App and remote | App control | Power-supply controls |
| Cable | Cordless | 60 ft with anti-tangle swivel |
| Robot weight | 25.8 lb | 20.3 lb |
| Warranty | 3 years | 3 years |
Choose Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. Dolphin Premier runs from continuous plug-in power without a recharge between cycles.
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