Help me choose
Our pick: Dolphin Quantum
Dolphin Quantum is the Pool Express pick in this matchup. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling.
Nautilus
Dolphin Nautilus Pool Up
Inground and above-ground pools up to 30 ft that need floor and wall cleaning, with heavy leaves.
ProLine
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
Why Dolphin Quantum is our pick
Dolphin Quantum
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris.
$1,649
Buy Dolphin QuantumDolphin Nautilus Pool Up or Dolphin Quantum: our take
Dolphin Nautilus Pool Up and Dolphin Quantum 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 Nautilus Pool Up is intended for inground and above-ground pools, while Dolphin Quantum is intended for inground pools. Dolphin Nautilus Pool Up is rated for pools up to 30 ft; Dolphin Quantum is rated up to 50 ft. Dolphin Nautilus Pool Up cleans floor and walls; Dolphin Quantum cleans floor, walls, and waterline. Dolphin Nautilus Pool Up lists 1 active brush. Dolphin Quantum lists 2 active brushes, SmartNav 2.0 navigation, and Dual DC motors.
Filtration and debris
Dolphin Nautilus Pool Up includes Oversized leaf bag; Dolphin Quantum includes XXL MaxBin and NanoFilters. Dolphin Quantum has the clearer documented edge for fine silt, pollen and sand.
Controls and day-to-day ownership
Dolphin Nautilus Pool Up provides one-touch starts and power-supply controls; Dolphin Quantum provides a weekly timer, smartphone control, and included remote control. Dolphin Nautilus Pool Up uses a 40 ft corded cable, while Dolphin Quantum uses a 60 ft corded cable with an anti-tangle swivel. Dolphin Nautilus Pool Up is listed at 18 lb versus 18.3 lb for Dolphin Quantum; that 0.3000000000000007 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Nautilus Pool Up is listed at $499 and Dolphin Quantum at $1,649; Dolphin Nautilus Pool Up is $1,150 less. Each lists a 2-year manufacturer warranty. Pool Express pick: Dolphin Quantum. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling. Choose Dolphin Nautilus Pool Up when it is the better fit for shoppers prioritizing the lower $499 starting price.
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 Nautilus Pool Up | Dolphin Quantum |
|---|---|---|
| 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 | No | YesEdge |
| Smartphone app | No | YesEdge |
| Anti-tangle swivel | Not listed | 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 Nautilus Pool Up stands out
Dolphin Nautilus Pool Up is the better fit for shoppers prioritizing the lower $499 starting price.
- Includes an oversized leaf bag for bulky seasonal debris
- Is listed $1,150 lower
- Weighs 18 lb versus 18.3 lb
Where Dolphin Quantum stands out
Dolphin Quantum is the better fit for pools up to 50 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Uses the high-capacity XXL MaxBin for easier top-load debris handling
- Includes filtration for sand, pollen and other fine debris
- Uses 2 active brushes instead of 1
Dolphin Nautilus Pool Up vs Dolphin Quantum 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 Nautilus Pool Up | Dolphin Quantum |
|---|---|---|
| Best fit | Inground and above-ground pools up to 30 ft that need floor and wall cleaning, with heavy leaves. | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris. |
| Starting price | $499 | $1,649 |
| Pool type | Inground, Above-ground | Inground |
| Maximum pool length | Up to 30 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Oversized leaf bag | XXL MaxBin, NanoFilters |
| Scheduling | One-touch start | Weekly schedule + app |
| App and remote | Power-supply controls | App + included remote |
| Cable | 40 ft | 60 ft with anti-tangle swivel |
| Robot weight | 18 lb | 18.3 lb |
| Warranty | 2 years | 2 years |
Choose Dolphin Quantum
Dolphin Quantum is the Pool Express pick in this matchup. Dolphin Quantum cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Quantum uses the high-capacity XXL MaxBin for easier top-load debris handling.
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