Help me choose
A stronger Pool Express option
Dolphin Advantage and Dolphin Oasis Z5i 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
Inground pools up to 33 ft that need floor and wall cleaning.
Oasis
Dolphin Oasis Z5i
Inground pools up to 50 ft that need floor, wall and waterline cleaning with app scheduling.
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 or Dolphin Oasis Z5i: our take
Dolphin Advantage and Dolphin Oasis Z5i 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 is rated for pools up to 33 ft; Dolphin Oasis Z5i is rated up to 50 ft. Dolphin Advantage cleans floor and walls; Dolphin Oasis Z5i cleans floor, walls, and waterline. Dolphin Advantage lists 1 active brush. Dolphin Oasis Z5i lists CleverClean navigation.
Filtration and debris
Dolphin Advantage includes Basket; Dolphin Oasis Z5i includes Basket and UltraFilter. Dolphin Oasis Z5i has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Advantage provides a weekly timer and power-supply controls; Dolphin Oasis Z5i provides a weekly timer and smartphone control. Dolphin Advantage uses a 50 ft corded cable, while Dolphin Oasis Z5i uses continuous corded power. Dolphin Advantage is listed at 14 lb versus 26.7 lb for Dolphin Oasis Z5i; that 12.7 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Advantage lists a 2-year warranty compared with 3 years for Dolphin Oasis Z5i. Dolphin Advantage and Dolphin Oasis Z5i 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 | Dolphin Oasis Z5i |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | No | YesEdge |
| Fine-debris filter included | No | YesEdge |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | No | YesEdge |
| Anti-tangle swivel | Not listed | Yes |
| 3-year warranty | No | YesEdge |
| 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 stands out
Dolphin Advantage is the better fit for inground pools up to 33 ft that need floor and wall cleaning.
- Weighs 14 lb versus 26.7 lb
- Cleans floor and walls
Where Dolphin Oasis Z5i stands out
Dolphin Oasis Z5i 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
- Adds smartphone control
- Carries a 3-year warranty instead of 2 years
Dolphin Advantage vs Dolphin Oasis Z5i 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 | Dolphin Oasis Z5i |
|---|---|---|
| Best fit | Inground pools up to 33 ft that need floor and wall cleaning. | Inground pools up to 50 ft that need floor, wall and waterline cleaning with app scheduling. |
| Starting price | $699 | See product |
| Pool type | Inground | Inground |
| Maximum pool length | Up to 33 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls | 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 | 50 ft | Not listed |
| Robot weight | 14 lb | 26.7 lb |
| Warranty | 2 years | 3 years |
Consider the stronger Pool Express option
Dolphin Advantage and Dolphin Oasis Z5i 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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