Help me choose
Our pick: Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. Dolphin Premier carries a 3-year warranty instead of 1 years.
Nautilus
Dolphin Nautilus Titan
Inground pools up to 50 ft that need floor, wall and waterline cleaning with app control.
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 Titan or Dolphin Premier: our take
Dolphin Nautilus Titan 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
Both robots are intended for inground pools. Both are rated for pools up to 50 ft. Each cleans floor, walls, and waterline, so coverage alone does not separate them. Dolphin Nautilus Titan lists 2 active brushes and CleverClean navigation. Dolphin Premier lists 2 active brushes, SmartNav 2.0 navigation, and Dual commercial-grade motors.
Filtration and debris
Dolphin Nautilus Titan includes Basket and UltraFilter; Dolphin Premier includes Standard filter, NanoFilters, Oversized leaf bag, and Multi-Media. Both have documented fine-debris media, so basket capacity and ease of cleaning matter more than fine-particle capability.
Controls and day-to-day ownership
Dolphin Nautilus Titan provides a weekly timer and smartphone control; Dolphin Premier provides a weekly timer, power-supply controls, and optional remote control. Dolphin Nautilus Titan uses continuous corded power, while Dolphin Premier uses a 60 ft corded cable with an anti-tangle swivel. Dolphin Nautilus Titan is listed at 22.6 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 Titan is listed at $1,599 and Dolphin Premier at $1,999; Dolphin Nautilus Titan is $400 less. Dolphin Nautilus Titan lists a 1-year warranty compared with 3 years for Dolphin Premier. Pool Express pick: Dolphin Premier. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. Dolphin Premier carries a 3-year warranty instead of 1 years. Choose Dolphin Nautilus Titan when it is the better fit for shoppers prioritizing the lower $1,599 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 Titan | Dolphin Premier |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | Yes | Yes |
| Fine-debris filter included | Yes | Yes |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | YesEdge | No |
| Anti-tangle swivel | Yes | 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 Titan stands out
Dolphin Nautilus Titan is the better fit for shoppers prioritizing the lower $1,599 starting price.
- Adds smartphone control
- Is listed $400 lower
Where Dolphin Premier stands out
Dolphin Premier is the better fit for inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves.
- Adds swappable Multi-Media filtration and an oversized leaf bag for changing debris
- Carries a 3-year warranty instead of 1 years
- Weighs 20.3 lb versus 22.6 lb
Dolphin Nautilus Titan 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 Titan | Dolphin Premier |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning with app control. | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves. |
| Starting price | $1,599 | $1,999 |
| Pool type | Inground | Inground |
| Maximum pool length | Up to 50 ft | Up to 50 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls, Waterline |
| Power | Corded | Corded |
| Filtration | Basket, UltraFilter | Standard filter, NanoFilters, Oversized leaf bag, Multi-Media |
| Scheduling | Weekly schedule + app | Weekly schedule |
| App and remote | App control | Power-supply controls |
| Cable | Not listed | 60 ft with anti-tangle swivel |
| Robot weight | 22.6 lb | 20.3 lb |
| Warranty | 1 years | 3 years |
Choose Dolphin Premier
Dolphin Premier is the Pool Express pick in this matchup. Dolphin Premier adds swappable Multi-Media filtration and an oversized leaf bag for changing debris. Dolphin Premier carries a 3-year warranty instead of 1 years.
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