Help me choose
A stronger Pool Express option
Blue Helix One and Dolphin Nautilus Pool Up 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 Pool Up
Inground and above-ground pools up to 30 ft that need floor and wall cleaning, with heavy leaves.
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 Pool Up: our take
Blue Helix One and Dolphin Nautilus Pool Up 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 Pool Up is intended for inground and above-ground pools. Dolphin Nautilus Pool Up has a published maximum pool length of 30 ft; the other model does not have a verified length in our source material. Blue Helix One cleans floor, walls, and waterline; Dolphin Nautilus Pool Up cleans floor and walls. Dolphin Nautilus Pool Up's documented cleaning system includes 1 active brush.
Filtration and debris
Blue Helix One includes Basket; Dolphin Nautilus Pool Up includes Oversized leaf bag.
Controls and day-to-day ownership
Blue Helix One provides a weekly timer and smartphone control; Dolphin Nautilus Pool Up provides one-touch starts and power-supply controls. Blue Helix One uses continuous corded power, while Dolphin Nautilus Pool Up uses a 40 ft corded cable.
Price, warranty and the decision
Blue Helix One is listed at $579 and Dolphin Nautilus Pool Up at $499; Dolphin Nautilus Pool Up is $80 less. Each lists a 2-year manufacturer warranty. Blue Helix One and Dolphin Nautilus Pool Up 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 Pool Up |
|---|---|---|
| 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 | YesEdge | No |
| Anti-tangle swivel | Not listed | Not listed |
| 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 owners who put smartphone control first.
- 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
- Adds smartphone control
Where Dolphin Nautilus Pool Up stands out
Dolphin Nautilus Pool Up is the better fit for shoppers prioritizing the lower $499 starting price.
- Includes an oversized leaf bag for bulky seasonal debris
- Is listed $80 lower
Blue Helix One vs Dolphin Nautilus Pool Up 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 Pool Up |
|---|---|---|
| Best fit | Inground pools that need floor, wall and waterline cleaning. | Inground and above-ground pools up to 30 ft that need floor and wall cleaning, with heavy leaves. |
| Starting price | $579 | $499 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Not listed | Up to 30 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Corded | Corded |
| Filtration | Basket | Oversized leaf bag |
| Scheduling | Weekly schedule + app | One-touch start |
| App and remote | App control | Power-supply controls |
| Cable | Not listed | 40 ft |
| Robot weight | Not listed | 18 lb |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Blue Helix One and Dolphin Nautilus Pool Up 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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