Help me choose
A stronger Pool Express option
Dolphin Active Solo and Dolphin S50 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
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.
What we recommend instead
Dolphin Cayman
Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
$1,079
Buy Dolphin CaymanDolphin Active Solo or Dolphin S50: our take
Dolphin Active Solo and Dolphin S50 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 S50 is intended for above-ground pools. Dolphin Active Solo is rated for pools up to 33 ft; Dolphin S50 is rated up to 30 ft. Dolphin Active Solo cleans floor and walls; Dolphin S50 cleans floor. Dolphin Active Solo lists 1 active brush and CleverClean navigation. Dolphin S50 lists 1 active brush.
Filtration and debris
Both models include Basket.
Controls and day-to-day ownership
Both models provide one-touch starts and power-supply controls. Dolphin Active Solo uses continuous corded power, while Dolphin S50 uses a 40 ft corded cable. Dolphin Active Solo is listed at 14.6 lb versus 14 lb for Dolphin S50; that 0.5999999999999996 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Active Solo is listed at $599 and Dolphin S50 at $649; Dolphin Active Solo is $50 less. Each lists a 2-year manufacturer warranty. Dolphin Active Solo and Dolphin S50 each have a specific fit, but neither is the Pool Express pick for this job. Our better alternative is Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
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 S50 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | YesEdge | No |
| Scrubs the waterline | No | No |
| Fine-debris filter included | No | No |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | No | No |
| Smartphone app | No | No |
| Anti-tangle swivel | No | 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 Dolphin Active Solo stands out
Dolphin Active Solo is the better fit for shoppers prioritizing the lower $599 starting price.
- Adds wall climbing and scrubbing
- Is rated for pools up to 33 ft
- Is listed $50 lower
Where Dolphin S50 stands out
Dolphin S50 is the better fit for above-ground pools up to 30 ft that need floor cleaning.
- Weighs 14 lb versus 14.6 lb
- Cleans the pool floor
Dolphin Active Solo vs Dolphin S50 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 S50 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 33 ft that need floor and wall cleaning at the lowest Active-series price. | Above-ground pools up to 30 ft that need floor cleaning. |
| Starting price | $599 | $649 |
| Pool type | Inground, Above-ground | Above-ground |
| Maximum pool length | Up to 33 ft | Up to 30 ft |
| Cleaning coverage | Floor, Walls | Floor |
| Power | Corded | Corded |
| Filtration | Basket | Basket |
| Scheduling | One-touch start | One-touch start |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | Not listed | 40 ft |
| Robot weight | 14.6 lb | 14 lb |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin Active Solo and Dolphin S50 are compared feature by feature below. For a stronger Pool Express option, consider Dolphin Cayman. Inground and above-ground pools up to 40 ft that need floor and wall cleaning.
More robotic pool cleaner comparisons
Keep comparing without rebuilding the same specification table yourself.
Clear UV vs Clear S
Pool Express pick: Clear UV
Dolphin Quantum vs Clear S
Pool Express pick: Dolphin Quantum
Dolphin Premier vs Dolphin Sigma
Pool Express pick: Dolphin Premier
Dolphin Premier vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Sigma vs Dolphin Quantum
Pool Express pick: Dolphin Quantum
Dolphin Cayman vs Dolphin Escape
Pool Express pick: Dolphin Cayman