Help me choose
Our pick: Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris.
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 Premier
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves.
Why Dolphin Premier is our pick
Dolphin Premier
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves.
$1,999
Buy Dolphin PremierDolphin Nautilus Pool Up or Dolphin Premier: our take
Dolphin Nautilus Pool Up and Dolphin Premier 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 Premier is intended for inground pools. Dolphin Nautilus Pool Up is rated for pools up to 30 ft; Dolphin Premier is rated up to 50 ft. Dolphin Nautilus Pool Up cleans floor and walls; Dolphin Premier cleans floor, walls, and waterline. Dolphin Nautilus Pool Up lists 1 active brush. Dolphin Premier lists 2 active brushes, SmartNav 2.0 navigation, and Dual commercial-grade motors.
Filtration and debris
Dolphin Nautilus Pool Up includes Oversized leaf bag; Dolphin Premier includes Standard filter, NanoFilters, Oversized leaf bag, and Multi-Media. Dolphin Premier 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 Premier provides a weekly timer, power-supply controls, and optional remote control. Dolphin Nautilus Pool Up uses a 40 ft corded cable, while Dolphin Premier uses a 60 ft corded cable with an anti-tangle swivel. Dolphin Nautilus Pool Up is listed at 18 lb versus 20.3 lb for Dolphin Premier; that 2.3000000000000007 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 Premier at $1,999; Dolphin Nautilus Pool Up is $1,500 less. Dolphin Nautilus Pool Up lists a 2-year warranty compared with 3 years for Dolphin Premier. Pool Express pick: Dolphin Premier. Dolphin Premier cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. 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 Premier |
|---|---|---|
| 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 | No |
| 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 Nautilus Pool Up stands out
Dolphin Nautilus Pool Up is the better fit for shoppers prioritizing the lower $499 starting price.
- Is listed $1,500 lower
- Weighs 18 lb versus 20.3 lb
Where Dolphin Premier stands out
Dolphin Premier is the better fit for pools up to 50 ft.
- Cleans the floor, walls and waterline instead of stopping below the tile line
- Adds swappable Multi-Media filtration and an oversized leaf bag for changing debris
- Includes filtration for sand, pollen and other fine debris
- Uses 2 active brushes instead of 1
Dolphin Nautilus Pool Up vs Dolphin Premier 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 Premier |
|---|---|---|
| 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 and heavy leaves. |
| Starting price | $499 | $1,999 |
| 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 | Standard filter, NanoFilters, Oversized leaf bag, Multi-Media |
| Scheduling | One-touch start | Weekly schedule |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 40 ft | 60 ft with anti-tangle swivel |
| Robot weight | 18 lb | 20.3 lb |
| Warranty | 2 years | 3 years |
Choose Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier cleans the floor, walls and waterline instead of stopping below the tile line. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris.
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