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.
ProLine
Dolphin Premier
Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves.
S-Line
Dolphin S100
Inground and above-ground pools up to 33 ft that need floor and wall cleaning, with fine debris.
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 Premier or Dolphin S100: our take
Dolphin Premier and Dolphin S100 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 Premier is intended for inground pools, while Dolphin S100 is intended for inground and above-ground pools. Dolphin Premier is rated for pools up to 50 ft; Dolphin S100 is rated up to 33 ft. Dolphin Premier cleans floor, walls, and waterline; Dolphin S100 cleans floor and walls. Dolphin Premier lists 2 active brushes, SmartNav 2.0 navigation, and Dual commercial-grade motors. Dolphin S100 lists 1 active brush.
Filtration and debris
Dolphin Premier includes Standard filter, NanoFilters, Oversized leaf bag, and Multi-Media; Dolphin S100 includes Basket and UltraFilter. 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 Premier provides a weekly timer, power-supply controls, and optional remote control; Dolphin S100 provides a weekly timer and power-supply controls. Dolphin Premier uses a 60 ft corded cable with an anti-tangle swivel, while Dolphin S100 uses a 50 ft corded cable. Dolphin Premier is listed at 20.3 lb versus 14 lb for Dolphin S100; that 6.300000000000001 lb difference matters when lifting the robot from the pool.
Price, warranty and the decision
Dolphin Premier is listed at $1,999 and Dolphin S100 at $849; Dolphin S100 is $1,150 less. Dolphin Premier lists a 3-year warranty compared with 2 years for Dolphin S100. 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 S100 when it is the better fit for shoppers prioritizing the lower $849 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 Premier | Dolphin S100 |
|---|---|---|
| Cleans the pool floor | Yes | Yes |
| Climbs and cleans walls | Yes | Yes |
| Scrubs the waterline | YesEdge | No |
| Fine-debris filter included | Yes | Yes |
| Large-debris filter | Yes | Yes |
| Automatic scheduling | Yes | Yes |
| Smartphone app | No | No |
| Anti-tangle swivel | Yes | Not listed |
| 3-year warranty | YesEdge | 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 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
- Uses 2 active brushes instead of 1
- Carries a 3-year warranty instead of 2 years
Where Dolphin S100 stands out
Dolphin S100 is the better fit for shoppers prioritizing the lower $849 starting price.
- Is listed $1,150 lower
- Weighs 14 lb versus 20.3 lb
Dolphin Premier vs Dolphin S100 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 Premier | Dolphin S100 |
|---|---|---|
| Best fit | Inground pools up to 50 ft that need floor, wall and waterline cleaning, with fine debris and heavy leaves. | Inground and above-ground pools up to 33 ft that need floor and wall cleaning, with fine debris. |
| Starting price | $1,999 | $849 |
| Pool type | Inground | Inground, Above-ground |
| Maximum pool length | Up to 50 ft | Up to 33 ft |
| Cleaning coverage | Floor, Walls, Waterline | Floor, Walls |
| Power | Corded | Corded |
| Filtration | Standard filter, NanoFilters, Oversized leaf bag, Multi-Media | Basket, UltraFilter |
| Scheduling | Weekly schedule | Weekly schedule |
| App and remote | Power-supply controls | Power-supply controls |
| Cable | 60 ft with anti-tangle swivel | 50 ft |
| Robot weight | 20.3 lb | 14 lb |
| Warranty | 3 years | 2 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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