Help me choose
A stronger Pool Express option
Blue Helix One 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.
Blue Helix
Blue Helix One
Inground pools 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 QuantumBlue Helix One or Dolphin Nautilus CC Plus: our take
Blue Helix One 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
Blue Helix One is intended for inground pools, while Dolphin Nautilus CC Plus is intended for inground and above-ground pools. Dolphin Nautilus CC Plus has a published maximum pool length of 50 ft; the other model does not have a verified length in our source material. Blue Helix One 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
Blue Helix One includes Basket; Dolphin Nautilus CC Plus includes Standard filter. Blue Helix One 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. Blue Helix One uses continuous corded power, while Dolphin Nautilus CC Plus uses a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Blue Helix One is listed at $579 and Dolphin Nautilus CC Plus at $949; Blue Helix One is $370 less. Blue Helix One lists a 2-year warranty compared with 2.5 years for Dolphin Nautilus CC Plus. Blue Helix One 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 | Blue Helix One | 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 | Yes | Yes |
| Anti-tangle swivel | Not listed | 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 Blue Helix One stands out
Blue Helix One is the better fit for shoppers prioritizing the lower $579 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 listed $370 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.
- Carries a 2.5-year warranty instead of 2 years
- Cleans floor and walls
Blue Helix One 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 | Blue Helix One | Dolphin Nautilus CC Plus |
|---|---|---|
| Best fit | Inground pools that need floor, wall and waterline cleaning. | Inground and above-ground pools up to 50 ft that need floor and wall cleaning. |
| Starting price | $579 | $949 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Not listed | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Corded | Corded |
| Filtration | Basket | Standard filter |
| Scheduling | Weekly schedule + app | Weekly schedule + app |
| App and remote | App control | App control |
| Cable | Not listed | 60 ft with anti-tangle swivel |
| Robot weight | Not listed | 20 lb |
| Warranty | 2 years | 2.5 years |
Consider the stronger Pool Express option
Blue Helix One 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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