Help me choose
A stronger Pool Express option
Blue Helix One and Dolphin Advantage Ultra 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.
Advantage
Dolphin Advantage Ultra
Inground pools up to 50 ft that need floor, wall and waterline 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 Advantage Ultra: our take
Blue Helix One and Dolphin Advantage Ultra 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 pools. Dolphin Advantage Ultra has a published maximum pool length of 50 ft; the other model does not have a verified length in our source material. Each cleans floor, walls, and waterline, so coverage alone does not separate them.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Blue Helix One provides a weekly timer and smartphone control; Dolphin Advantage Ultra provides a weekly timer and power-supply controls. Blue Helix One uses continuous corded power, while Dolphin Advantage Ultra 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 Advantage Ultra at $1,099; Blue Helix One is $520 less. Each lists a 2-year manufacturer warranty. Blue Helix One and Dolphin Advantage Ultra 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 Advantage Ultra |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | YesEdge | No |
| 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.
- Adds smartphone control
- Is listed $520 lower
Where Dolphin Advantage Ultra stands out
Dolphin Advantage Ultra is the better fit for inground pools up to 50 ft that need floor, wall and waterline cleaning.
- 60 ft cable with anti-tangle swivel
- Weekly timer
Blue Helix One vs Dolphin Advantage Ultra 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 Advantage Ultra |
|---|---|---|
| Best fit | Inground pools that need floor, wall and waterline cleaning. | Inground pools up to 50 ft that need floor, wall and waterline cleaning. |
| Starting price | $579 | $1,099 |
| Pool type | Inground | Inground |
| Maximum pool length | Not listed | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Basket | Basket |
| Scheduling | Weekly schedule + app | Weekly schedule |
| App and remote | App control | Power-supply controls |
| Cable | Not listed | 60 ft with anti-tangle swivel |
| Robot weight | Not listed | Not listed |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Blue Helix One and Dolphin Advantage Ultra 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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