Help me choose
A stronger Pool Express option
Clear S and Dolphin Nautilus AG 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.
CLEAR
Clear S
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Nautilus
Dolphin Nautilus AG
Above-ground and small inground pools up to 30 ft that need the floor vacuumed.
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 CaymanClear S or Dolphin Nautilus AG: our take
Clear S and Dolphin Nautilus AG 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 Nautilus AG is intended for above-ground pools. Clear S is rated for pools up to 50 ft; Dolphin Nautilus AG is rated up to 30 ft. Clear S cleans floor, walls, and waterline; Dolphin Nautilus AG cleans floor. Clear S lists 2 active brushes, Intelligent navigation (C9 microprocessor), and Quad (2 pump + 2 drive) motors. Dolphin Nautilus AG lists 1 active brush and CleverClean navigation.
Filtration and debris
Clear S includes UltraFilter; Dolphin Nautilus AG includes Basket. That gives Clear S the clearer documented edge for fine silt, pollen and sand. Dolphin Nautilus AG 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 Nautilus AG provides one-touch starts and power-supply controls. Clear S uses a 59 ft corded cable with an anti-tangle swivel, while Dolphin Nautilus AG uses continuous corded power. Clear S is listed at 27.6 lb versus 14.6 lb for Dolphin Nautilus AG; that 13.000000000000002 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Clear S is listed at $1,749 and Dolphin Nautilus AG at $568; Dolphin Nautilus AG is $1,181 less. Clear S lists a 3-year warranty compared with 1 years for Dolphin Nautilus AG. Clear S and Dolphin Nautilus AG 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 | Clear S | Dolphin Nautilus AG |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | YesEdge | No |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | YesEdge | No |
| Large-debris filter | No | YesEdge |
| Automatic scheduling | YesEdge | No |
| Smartphone app | YesEdge | No |
| Anti-tangle swivel | YesEdge | No |
| 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 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
Where Dolphin Nautilus AG stands out
Dolphin Nautilus AG is the better fit for shoppers prioritizing the lower $568 starting price.
- Includes a large-debris bin or bag for leaves
- Is listed $1,181 lower
- Weighs 14.6 lb versus 27.6 lb
Clear S vs Dolphin Nautilus AG 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 Nautilus AG |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. | Above-ground and small inground pools up to 30 ft that need the floor vacuumed. |
| Starting price | $1,749 | $568 |
| Pool type | Inground | Above-ground |
| Maximum pool length | Up to 50 ft | Up to 30 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor |
| Power | Corded | Corded |
| Filtration | UltraFilter | Basket |
| Scheduling | Weekly schedule + app | One-touch start |
| App and remote | App + included remote | Power-supply controls |
| Cable | 59 ft with anti-tangle swivel | Not listed |
| Robot weight | 27.6 lb | 14.6 lb |
| Warranty | 3 years | 1 years |
Consider the stronger Pool Express option
Clear S and Dolphin Nautilus AG 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.
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