Help me choose
A stronger Pool Express option
Dolphin Liberty 400 and Dolphin Nautilus CC Plus are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Liberty
Dolphin Liberty 400
Inground and above-ground pools up to 33 ft that need floor, wall and waterline cleaning without a cord.
Nautilus
Dolphin Nautilus CC Plus
Inground and above-ground pools up to 50 ft that need floor and wall cleaning.
What we recommend instead
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Liberty 400 or Dolphin Nautilus CC Plus: our take
Dolphin Liberty 400 and Dolphin Nautilus CC Plus 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
Both robots are intended for inground and above-ground pools. Dolphin Liberty 400 is rated for pools up to 33 ft; Dolphin Nautilus CC Plus is rated up to 50 ft. Dolphin Liberty 400 cleans floor, walls, and waterline; Dolphin Nautilus CC Plus cleans floor and walls. Dolphin Nautilus CC Plus's documented cleaning system includes 2 active brushes and CleverClean navigation.
Filtration and debris
Dolphin Liberty 400 includes Basket and UltraFilter; Dolphin Nautilus CC Plus includes Standard filter. That gives Dolphin Liberty 400 the clearer documented edge for fine silt, pollen and sand. Dolphin Liberty 400 also has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Both models provide a weekly timer and smartphone control. Dolphin Liberty 400 uses cordless battery power, while Dolphin Nautilus CC Plus uses a 60 ft corded cable with an anti-tangle swivel. Dolphin Liberty 400 is listed at 17.9 lb versus 20 lb for Dolphin Nautilus CC Plus; that 2.1000000000000014 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Liberty 400 is listed at $1,429 and Dolphin Nautilus CC Plus at $949; Dolphin Nautilus CC Plus is $480 less. Dolphin Liberty 400 lists a 3-year warranty compared with 2.5 years for Dolphin Nautilus CC Plus. Dolphin Liberty 400 and Dolphin Nautilus CC Plus each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
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 400 | Dolphin Nautilus CC Plus |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | YesEdge | No |
| Automatic scheduling | Yes | Yes |
| Smartphone app | Yes | Yes |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | YesEdge | 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 400 stands out
Dolphin Liberty 400 is the better fit for owners who value cordless handling more than automatic scheduling and continuous power.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes filtration for sand, pollen and other fine debris
- Includes a large-debris bin or bag for leaves
- Carries a 3-year warranty instead of 2.5 years
Where Dolphin Nautilus CC Plus stands out
Dolphin Nautilus CC Plus is the better fit for shoppers prioritizing the lower $949 starting price.
- Is rated for pools up to 50 ft
- Runs from continuous plug-in power without a recharge between cycles
- Is listed $480 lower
Dolphin Liberty 400 vs Dolphin Nautilus CC Plus 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 400 | Dolphin Nautilus CC Plus |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor, wall and waterline cleaning without a cord. | Inground and above-ground pools up to 50 ft that need floor and wall cleaning. |
| Starting price | $1,429 | $949 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 33 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Cordless | Corded |
| Filtration | Basket, UltraFilter | Standard filter |
| Scheduling | Weekly schedule + app | Weekly schedule + app |
| App and remote | App control | App control |
| Cable | Cordless | 60 ft with anti-tangle swivel |
| Robot weight | 17.9 lb | 20 lb |
| Warranty | 3 years | 2.5 years |
Consider the stronger Pool Express option
Dolphin Liberty 400 and Dolphin Nautilus CC Plus are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Quantum. Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
More robotic pool cleaner comparisons
Keep comparing without rebuilding the same specification table yourself.
Clear UV vs Clear S
Pool Express pick: Clear UV
Dolphin Quantum vs Clear S
Pool Express pick: Dolphin Quantum
Dolphin Premier vs Dolphin Sigma
Pool Express pick: Dolphin Premier
Dolphin Premier vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Sigma vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Cayman vs Dolphin Escape
Pool Express pick: Dolphin Cayman