Help me choose
A stronger Pool Express option
Dolphin Advantage Ultra and Dolphin T35 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.
Advantage
Dolphin Advantage Ultra
Inground pools up to 50 ft that need floor, wall and waterline cleaning.
T-Line
Dolphin T35
Inground pools that need floor, wall and waterline cleaning, with fine debris.
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 Advantage Ultra or Dolphin T35: our take
Dolphin Advantage Ultra and Dolphin T35 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. Dolphin Advantage Ultra 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. Dolphin T35's documented cleaning system includes 2 active brushes and CleverClean navigation.
Filtration and debris
Dolphin Advantage Ultra includes Basket; Dolphin T35 includes Basket and UltraFilter. Dolphin T35 has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Advantage Ultra provides a weekly timer and power-supply controls; Dolphin T35 provides a weekly timer and smartphone control. Both use a 60 ft corded cable with an anti-tangle swivel.
Price, warranty and the decision
Dolphin Advantage Ultra is listed at $1,099 and Dolphin T35 at $1,199; Dolphin Advantage Ultra is $100 less. Each lists a 2-year manufacturer warranty. Dolphin Advantage Ultra and Dolphin T35 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 Advantage Ultra | Dolphin T35 |
|---|---|---|
| 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 Advantage Ultra stands out
Dolphin Advantage Ultra is the better fit for shoppers prioritizing the lower $1,099 starting price.
- Is listed $100 lower
- Top-load filter basket
Where Dolphin T35 stands out
Dolphin T35 is the better fit for owners who put smartphone control first.
- Includes filtration for sand, pollen and other fine debris
- Adds smartphone control
Dolphin Advantage Ultra vs Dolphin T35 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 Advantage Ultra | Dolphin T35 |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning. | Inground pools that need floor, wall and waterline cleaning, with fine debris. |
| Starting price | $1,099 | $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 | Basket | Basket, UltraFilter |
| Scheduling | Weekly schedule | Weekly schedule + app |
| App and remote | Power-supply controls | App control |
| Cable | 60 ft with anti-tangle swivel | 60 ft with anti-tangle swivel |
| Robot weight | Not listed | Not listed |
| Warranty | 2 years | 2 years |
Consider the stronger Pool Express option
Dolphin Advantage Ultra and Dolphin T35 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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