Help me choose
A stronger Pool Express option
Aquabot X4 and Dolphin Explorer E40 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.
Aquabot
Aquabot X4
Inground and above-ground pools up to 60 ft that need floor, wall and waterline cleaning.
Explorer
Dolphin Explorer E40
Inground pools up to 50 ft that need floor cleaning.
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 QuantumAquabot X4 or Dolphin Explorer E40: our take
Aquabot X4 and Dolphin Explorer E40 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
Aquabot X4 is intended for inground and above-ground pools, while Dolphin Explorer E40 is intended for inground pools. Aquabot X4 is rated for pools up to 60 ft; Dolphin Explorer E40 is rated up to 50 ft. Aquabot X4 cleans floor, walls, and waterline; Dolphin Explorer E40 cleans floor. Aquabot X4's documented cleaning system includes 1 active brush and Intelligent navigation.
Filtration and debris
Aquabot X4 has documented included filtration—Basket—while the other model's included media is not fully published. Aquabot X4 also has the better documented path for bulky leaves and larger debris.
Controls and day-to-day ownership
Aquabot X4 provides a weekly timer; Dolphin Explorer E40 provides no fully published timer, app or remote specification.
Price, warranty and the decision
Aquabot X4 is listed at $747 and Dolphin Explorer E40 at $1,599; Aquabot X4 is $852 less. Aquabot X4 lists a 2-year warranty compared with 3 years for Dolphin Explorer E40. Aquabot X4 and Dolphin Explorer E40 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 | Aquabot X4 | Dolphin Explorer E40 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | YesEdge | No |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | No | No |
| Large-debris filter | YesEdge | No |
| Automatic scheduling | Yes | Not listed |
| Smartphone app | Not listed | Not listed |
| Anti-tangle swivel | Yes | Not listed |
| 3-year warranty | No | YesEdge |
| No recharging between cycles | Yes | Not listed |
| 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 Aquabot X4 stands out
Aquabot X4 is the better fit for shoppers prioritizing the lower $747 starting price.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Includes a large-debris bin or bag for leaves
- Is rated for pools up to 60 ft
- Is listed $852 lower
Where Dolphin Explorer E40 stands out
Dolphin Explorer E40 is the better fit for inground pools up to 50 ft that need floor cleaning.
- Carries a 3-year warranty instead of 2 years
- Cleans the pool floor
Aquabot X4 vs Dolphin Explorer E40 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 | Aquabot X4 | Dolphin Explorer E40 |
|---|---|---|
| Best fit | Inground and above-ground pools up to 60 ft that need floor, wall and waterline cleaning. | Inground pools up to 50 ft that need floor cleaning. |
| Starting price | $747 | $1,599 |
| Pool type | Inground, Above-ground | Inground |
| Maximum pool length | Up to 60 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor |
| Power | Corded | Not listed |
| Filtration | Basket | Not listed |
| Scheduling | Weekly schedule | Not listed |
| App and remote | Not listed | Not listed |
| Cable | 60 ft with anti-tangle swivel | Not listed |
| Robot weight | 40 lb | Not listed |
| Warranty | 2 years | 3 years |
Consider the stronger Pool Express option
Aquabot X4 and Dolphin Explorer E40 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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