Help me choose
Our pick: Clear S
Clear S is the Pool Express pick in this matchup. Clear S runs from continuous plug-in power without a recharge between cycles. Clear S cleans floor, walls and waterline.
CLEAR
Clear S
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Liberty
Dolphin Liberty 600
Inground and above-ground pools up to 50 ft that need floor, wall, waterline and lounge-area cleaning without a cord.
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 Liberty 600: our take
Clear S and Dolphin Liberty 600 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
Clear S is intended for inground pools, while Dolphin Liberty 600 is intended for inground and above-ground pools. Both are rated for pools up to 50 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Clear S's documented cleaning system includes 2 active brushes, Intelligent navigation (C9 microprocessor), and Quad (2 pump + 2 drive) motors.
Filtration and debris
Clear S includes UltraFilter; Dolphin Liberty 600 includes Basket and UltraFilter. Both have documented fine-debris media, so basket capacity and ease of cleaning matter more than fine-particle capability. Dolphin Liberty 600 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 Liberty 600 provides a weekly timer and smartphone control. Clear S uses a 59 ft corded cable with an anti-tangle swivel, while Dolphin Liberty 600 uses cordless battery power. Clear S is listed at 27.6 lb versus 25.8 lb for Dolphin Liberty 600; that 1.8000000000000007 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Clear S is listed at $1,749 and Dolphin Liberty 600 at $1,729; Dolphin Liberty 600 is $20 less. Each lists a 3-year manufacturer warranty. Pool Express pick: Clear S. Clear S runs from continuous plug-in power without a recharge between cycles. Clear S cleans floor, walls and waterline. Choose Dolphin Liberty 600 when it is the better fit for shoppers prioritizing the lower $1,729 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 Liberty 600 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | Yes | Yes |
| Large-debris filter | No | YesEdge |
| Automatic scheduling | Yes | Yes |
| Smartphone app | Yes | Yes |
| Anti-tangle swivel | Yes | Not listed |
| 3-year warranty | Yes | Yes |
| No recharging between cycles | YesEdge | No |
| 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 inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
- Runs from continuous plug-in power without a recharge between cycles
- Cleans floor, walls and waterline
Where Dolphin Liberty 600 stands out
Dolphin Liberty 600 is the better fit for shoppers prioritizing the lower $1,729 starting price.
- Includes a large-debris bin or bag for leaves
- Is listed $20 lower
- Weighs 25.8 lb versus 27.6 lb
Clear S vs Dolphin Liberty 600 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 Liberty 600 |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. | Inground and above-ground pools up to 50 ft that need floor, wall, waterline and lounge-area cleaning without a cord. |
| Starting price | $1,749 | $1,729 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Cordless |
| Filtration | UltraFilter | Basket, UltraFilter |
| Scheduling | Weekly schedule + app | Weekly schedule + app |
| App and remote | App + included remote | App control |
| Cable | 59 ft with anti-tangle swivel | Cordless |
| Robot weight | 27.6 lb | 25.8 lb |
| Warranty | 3 years | 3 years |
Choose Clear S
Clear S is the Pool Express pick in this matchup. Clear S runs from continuous plug-in power without a recharge between cycles. Clear S cleans floor, walls and waterline.
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