Help me choose
A stronger Pool Express option
Dolphin Active Solo and Dolphin Nautilus Titan 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.
Active
Dolphin Active Solo
Inground and above-ground pools up to 33 ft that need floor and wall cleaning at the lowest Active-series price.
Nautilus
Dolphin Nautilus Titan
Inground pools up to 50 ft that need floor, wall and waterline cleaning with app control.
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 QuantumDolphin Active Solo or Dolphin Nautilus Titan: our take
Dolphin Active Solo and Dolphin Nautilus Titan 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
Dolphin Active Solo is intended for inground and above-ground pools, while Dolphin Nautilus Titan is intended for inground pools. Dolphin Active Solo is rated for pools up to 33 ft; Dolphin Nautilus Titan is rated up to 50 ft. Dolphin Active Solo cleans floor and walls; Dolphin Nautilus Titan cleans floor, walls, and waterline. Dolphin Active Solo lists 1 active brush and CleverClean navigation. Dolphin Nautilus Titan lists 2 active brushes and CleverClean navigation.
Filtration and debris
Dolphin Active Solo includes Basket; Dolphin Nautilus Titan includes Basket and UltraFilter. Dolphin Nautilus Titan has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Active Solo provides one-touch starts and power-supply controls; Dolphin Nautilus Titan provides a weekly timer and smartphone control. Both use continuous corded power. Dolphin Active Solo is listed at 14.6 lb versus 22.6 lb for Dolphin Nautilus Titan; that 8.000000000000002 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Active Solo is listed at $599 and Dolphin Nautilus Titan at $1,599; Dolphin Active Solo is $1,000 less. Dolphin Active Solo lists a 2-year warranty compared with 1 years for Dolphin Nautilus Titan. Dolphin Active Solo and Dolphin Nautilus Titan 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 | Dolphin Active Solo | Dolphin Nautilus Titan |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | YesEdge |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | YesEdge |
| Smartphone app | No | YesEdge |
| Anti-tangle swivel | No | YesEdge |
| 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 Dolphin Active Solo stands out
Dolphin Active Solo is the better fit for shoppers prioritizing the lower $599 starting price.
- Carries a 2-year warranty instead of 1 years
- Is listed $1,000 lower
- Weighs 14.6 lb versus 22.6 lb
Where Dolphin Nautilus Titan stands out
Dolphin Nautilus Titan is the better fit for pools up to 50 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes filtration for sand, pollen and other fine debris
- Uses 2 active brushes instead of 1
- Can start on a weekly schedule without a manual launch before every cycle
Dolphin Active Solo vs Dolphin Nautilus Titan 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 | Dolphin Active Solo | Dolphin Nautilus Titan |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning at the lowest Active-series price. | Inground pools up to 50 ft that need floor, wall and waterline cleaning with app control. |
| Starting price | $599 | $1,599 |
| Pool type | Inground, Above-ground | Inground |
| Maximum pool length | Up to 33 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Basket | Basket, UltraFilter |
| Scheduling | One-touch start | Weekly schedule + app |
| App and remote | Power-supply controls | App control |
| Cable | Not listed | Not listed |
| Robot weight | 14.6 lb | 22.6 lb |
| Warranty | 2 years | 1 years |
Consider the stronger Pool Express option
Dolphin Active Solo and Dolphin Nautilus Titan 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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