Help me choose
A stronger Pool Express option
Blue Helix One and Dolphin Explorer E70 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.
Explorer
Dolphin Explorer E70
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
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 Explorer E70: our take
Blue Helix One and Dolphin Explorer E70 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 Explorer E70 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. Dolphin Explorer E70's documented cleaning system includes CleverClean navigation.
Filtration and debris
Blue Helix One includes Basket; Dolphin Explorer E70 includes Basket and UltraFilter. Dolphin Explorer E70 has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Blue Helix One provides a weekly timer and smartphone control; Dolphin Explorer E70 provides a weekly timer, smartphone control, and included remote control. Blue Helix One uses continuous corded power, while Dolphin Explorer E70 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 Explorer E70 at $2,099; Blue Helix One is $1,520 less. Blue Helix One lists a 2-year warranty compared with 3 years for Dolphin Explorer E70. Blue Helix One and Dolphin Explorer E70 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 Explorer E70 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | No | YesEdge |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | Yes | Yes |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | No | YesEdge |
| 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.
- Is listed $1,520 lower
- Corded, plug-in power supply
Where Dolphin Explorer E70 stands out
Dolphin Explorer E70 is the better fit for inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
- Includes filtration for sand, pollen and other fine debris
- Carries a 3-year warranty instead of 2 years
Blue Helix One vs Dolphin Explorer E70 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 Explorer E70 |
|---|---|---|
| Best fit | Inground pools that need floor, wall and waterline cleaning. | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. |
| Starting price | $579 | $2,099 |
| 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, UltraFilter |
| Scheduling | Weekly schedule + app | Weekly schedule + app |
| App and remote | App control | App + included remote |
| Cable | Not listed | 60 ft with anti-tangle swivel |
| Robot weight | Not listed | Not listed |
| Warranty | 2 years | 3 years |
Consider the stronger Pool Express option
Blue Helix One and Dolphin Explorer E70 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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