Help me choose
Our pick: Clear S
Clear S is the Pool Express pick in this matchup. Clear S includes filtration for sand, pollen and other fine debris. Clear S uses 2 active brushes instead of 1.
CLEAR
Clear S
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Proteus
Dolphin Proteus DX4
Inground pools that need floor, wall and waterline cleaning.
Why Clear S is our pick
Clear S
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,749
Buy Clear SClear S or Dolphin Proteus DX4: our take
Clear S and Dolphin Proteus DX4 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. Clear S 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. Clear S lists 2 active brushes, Intelligent navigation (C9 microprocessor), and Quad (2 pump + 2 drive) motors. Dolphin Proteus DX4 lists 1 active brush.
Filtration and debris
Clear S includes UltraFilter; Dolphin Proteus DX4 includes Basket. That gives Clear S the clearer documented edge for fine silt, pollen and sand. Dolphin Proteus DX4 has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Clear S provides a weekly timer, smartphone control, and included remote control; Dolphin Proteus DX4 provides a weekly timer and power-supply controls. Clear S uses a 59 ft corded cable with an anti-tangle swivel, while Dolphin Proteus DX4 uses a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Clear S is listed at $1,749 and Dolphin Proteus DX4 at $1,199; Dolphin Proteus DX4 is $550 less. Clear S lists a 3-year warranty compared with 2 years for Dolphin Proteus DX4. Pool Express pick: Clear S. Clear S includes filtration for sand, pollen and other fine debris. Clear S uses 2 active brushes instead of 1. Choose Dolphin Proteus DX4 when it is the better fit for shoppers prioritizing the lower $1,199 starting price.
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 | Clear S | Dolphin Proteus DX4 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | No | YesEdge |
| Automatic scheduling | Yes | Yes |
| Smartphone app | YesEdge | No |
| Anti-tangle swivel | Yes | Yes |
| 3-year warranty | YesEdge | 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 Clear S stands out
Clear S is the better fit for owners who put smartphone control first.
- Includes filtration for sand, pollen and other fine debris
- Uses 2 active brushes instead of 1
- Adds smartphone control
- Carries a 3-year warranty instead of 2 years
Where Dolphin Proteus DX4 stands out
Dolphin Proteus DX4 is the better fit for shoppers prioritizing the lower $1,199 starting price.
- Includes a large-debris bin or bag for leaves
- Is listed $550 lower
Clear S vs Dolphin Proteus DX4 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 | Clear S | Dolphin Proteus DX4 |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. | Inground pools that need floor, wall and waterline cleaning. |
| Starting price | $1,749 | $1,199 |
| Pool type | Inground | Inground |
| Maximum pool length | Up to 50 ft | Not listed |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | UltraFilter | Basket |
| Scheduling | Weekly schedule + app | Weekly schedule |
| App and remote | App + included remote | Power-supply controls |
| Cable | 59 ft with anti-tangle swivel | 60 ft with anti-tangle swivel |
| Robot weight | 27.6 lb | Not listed |
| Warranty | 3 years | 2 years |
Choose Clear S
Clear S is the Pool Express pick in this matchup. Clear S includes filtration for sand, pollen and other fine debris. Clear S uses 2 active brushes instead of 1.
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