Help me choose
A stronger Pool Express option
Dolphin Proteus DX4 and Dolphin T2000 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.
Proteus
Dolphin Proteus DX4
Inground pools that need floor, wall and waterline cleaning.
T-Line
Dolphin T2000
Inground and above-ground pools up to 40 ft with steps or a sun ledge that need full-coverage cleaning on a schedule.
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 QuantumDolphin Proteus DX4 or Dolphin T2000: our take
Dolphin Proteus DX4 and Dolphin T2000 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 Proteus DX4 is intended for inground pools, while Dolphin T2000 is intended for inground and above-ground pools. Dolphin T2000 has a published maximum pool length of 40 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. Dolphin Proteus DX4 lists 1 active brush. Dolphin T2000 lists 2 active brushes and CleverClean navigation.
Filtration and debris
Dolphin Proteus DX4 includes Basket; Dolphin T2000 includes Basket and UltraFilter. Dolphin T2000 has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Proteus DX4 provides a weekly timer and power-supply controls; Dolphin T2000 provides a weekly timer and smartphone control. Dolphin Proteus DX4 uses a 60 ft corded cable with an anti-tangle swivel, while Dolphin T2000 uses continuous corded power.
Price, warranty and the decision
Both are listed at $1,199. Each lists a 2-year manufacturer warranty. Dolphin Proteus DX4 and Dolphin T2000 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 | Dolphin Proteus DX4 | Dolphin T2000 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | No | YesEdge |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | No | YesEdge |
| Anti-tangle swivel | Yes | Yes |
| 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 Proteus DX4 stands out
Dolphin Proteus DX4 is the better fit for inground pools that need floor, wall and waterline cleaning.
- Cleans floor, walls and waterline
- 60 ft cable with anti-tangle swivel
Where Dolphin T2000 stands out
Dolphin T2000 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
Dolphin Proteus DX4 vs Dolphin T2000 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 Proteus DX4 | Dolphin T2000 |
|---|---|---|
| Best fit | Inground pools that need floor, wall and waterline cleaning. | Inground and above-ground pools up to 40 ft with steps or a sun ledge that need full-coverage cleaning on a schedule. |
| Starting price | $1,199 | $1,199 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Not listed | Up to 40 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Basket | Basket, UltraFilter |
| Scheduling | Weekly schedule | Weekly schedule + app |
| App and remote | Power-supply controls | App control |
| Cable | 60 ft with anti-tangle swivel | Not listed |
| Robot weight | Not listed | 17.9 lb |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin Proteus DX4 and Dolphin T2000 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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