Help me choose
A stronger Pool Express option
Aquabot X4 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.
Aquabot
Aquabot X4
Inground and above-ground pools up to 60 ft that need floor, wall and waterline cleaning.
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 QuantumAquabot X4 or Dolphin Nautilus CC Plus: our take
Aquabot X4 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. Aquabot X4 is rated for pools up to 60 ft; Dolphin Nautilus CC Plus is rated up to 50 ft. Aquabot X4 cleans floor, walls, and waterline; Dolphin Nautilus CC Plus cleans floor and walls. Aquabot X4 lists 1 active brush and Intelligent navigation. Dolphin Nautilus CC Plus lists 2 active brushes and CleverClean navigation.
Filtration and debris
Aquabot X4 includes Basket; Dolphin Nautilus CC Plus includes Standard filter. Aquabot X4 also has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Aquabot X4 provides a weekly timer; Dolphin Nautilus CC Plus provides a weekly timer and smartphone control. Both use a 60 ft corded cable with an anti-tangle swivel. Aquabot X4 is listed at 40 lb versus 20 lb for Dolphin Nautilus CC Plus; that 20 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Aquabot X4 is listed at $747 and Dolphin Nautilus CC Plus at $949; Aquabot X4 is $202 less. Aquabot X4 lists a 2-year warranty compared with 2.5 years for Dolphin Nautilus CC Plus. Aquabot X4 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 | Aquabot X4 | 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 | No | No |
| Large-debris filter | YesEdge | No |
| Automatic scheduling | Yes | Yes |
| Smartphone app | Not listed | Yes |
| Anti-tangle swivel | Yes | Yes |
| 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 shoppers prioritizing the lower $747 starting price.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes a large-debris bin or bag for leaves
- Is rated for pools up to 60 ft
- Is listed $202 lower
Where Dolphin Nautilus CC Plus stands out
Dolphin Nautilus CC Plus is the better fit for inground and above-ground pools up to 50 ft that need floor and wall cleaning.
- Uses 2 active brushes instead of 1
- Has documented smartphone control
- Carries a 2.5-year warranty instead of 2 years
- Weighs 20 lb versus 40 lb
Aquabot X4 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 | Aquabot X4 | Dolphin Nautilus CC Plus |
|---|---|---|
| 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 50 ft that need floor and wall cleaning. |
| Starting price | $747 | $949 |
| Pool type | Inground, Above-ground | Inground, Above-ground |
| Maximum pool length | Up to 60 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Corded | Corded |
| Filtration | Basket | Standard filter |
| Scheduling | Weekly schedule | Weekly schedule + app |
| App and remote | Not listed | App control |
| Cable | 60 ft with anti-tangle swivel | 60 ft with anti-tangle swivel |
| Robot weight | 40 lb | 20 lb |
| Warranty | 2 years | 2.5 years |
Consider the stronger Pool Express option
Aquabot X4 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.
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