Help me choose
A stronger Pool Express option
Aquabot X4 and Dolphin Nautilus CC 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.
Aquabot
Aquabot X4
Inground and above-ground pools up to 60 ft that need floor, wall and waterline cleaning.
Nautilus
Dolphin Nautilus CC
Inground and above-ground pools up to 33 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 QuantumAquabot X4 or Dolphin Nautilus CC: our take
Aquabot X4 and Dolphin Nautilus CC 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. Aquabot X4 is rated for pools up to 60 ft; Dolphin Nautilus CC is rated up to 33 ft. Aquabot X4 cleans floor, walls, and waterline; Dolphin Nautilus CC cleans floor and walls. Aquabot X4 lists 1 active brush and Intelligent navigation. Dolphin Nautilus CC lists 1 active brush.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Aquabot X4 provides a weekly timer; Dolphin Nautilus CC provides one-touch starts and power-supply controls. Aquabot X4 uses a 60 ft corded cable with an anti-tangle swivel, while Dolphin Nautilus CC uses a 50 ft corded cable.
Price, warranty and the decision
Aquabot X4 is listed at $747 and Dolphin Nautilus CC at $699; Dolphin Nautilus CC is $48 less. Each lists a 2-year manufacturer warranty. Aquabot X4 and Dolphin Nautilus CC 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 | Aquabot X4 | Dolphin Nautilus CC |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | YesEdge | No |
| Smartphone app | Not listed | No |
| Anti-tangle swivel | YesEdge | No |
| 3-year warranty | No | No |
| No recharging between cycles | Yes | Yes |
| 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 Aquabot X4 stands out
Aquabot X4 is the better fit for pools up to 60 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Can start on a weekly schedule without a manual launch before every cycle
- Uses an anti-tangle swivel cable
- Is rated for pools up to 60 ft
Where Dolphin Nautilus CC stands out
Dolphin Nautilus CC is the better fit for shoppers prioritizing the lower $699 starting price.
- Is listed $48 lower
- Cleans floor and walls
Aquabot X4 vs Dolphin Nautilus CC 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 | Aquabot X4 | Dolphin Nautilus CC |
|---|---|---|
| Best fit | Inground and above-ground pools up to 60 ft that need floor, wall and waterline cleaning. | Inground and above-ground pools up to 33 ft that need floor and wall cleaning. |
| Starting price | $747 | $699 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 60 ft | Up to 33 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Corded | Corded |
| Filtration | Basket | Basket |
| Scheduling | Weekly schedule | One-touch start |
| App and remote | Not listed | Power-supply controls |
| Cable | 60 ft with anti-tangle swivel | 50 ft |
| Robot weight | 40 lb | Not listed |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Aquabot X4 and Dolphin Nautilus CC 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