Robotic pool cleaner comparison

Dolphin S50 vs Dolphin Wave 140

A side-by-side comparison of pool fit, cleaning coverage, filtration, controls and the better Pool Express option.

By Brian Williamson, Pool Express product specialist
Updated November 9, 2026

Choose by pool type

Residential and commercial pools need different robots

Dolphin S50 and Dolphin Wave 140 serve different kinds of pools, so there is no honest one-size-fits-all winner. Choose Dolphin Escape for residential use. Choose Dolphin Wave 100 for commercial use.

Buy Dolphin Escape Buy Dolphin Wave 100 Compare every robot

S-Line

Dolphin S50

Above-ground pools up to 30 ft that need floor cleaning.

Listed price $649

View better alternatives

Wave

Dolphin Wave 140

Commercial pools up to 127 ft in daily use that need floor cleaning with high capacity.

Listed price $8,499

View better alternatives

Right robot for each job

Choose residential and commercial cleaners separately

Residential pick

Dolphin Escape

Inground and above-ground pools up to 30 ft that need floor cleaning.

$669

Buy Dolphin Escape

Commercial pick

Dolphin Wave 100

Commercial pools up to 88 ft that need floor, wall and waterline cleaning.

$4,699

Buy Dolphin Wave 100

Buying guidance

Dolphin S50 or Dolphin Wave 140: our take

Dolphin S50 and Dolphin Wave 140 can be compared on specifications, but they are designed for different jobs. Start with residential versus commercial use, then use the details below to understand the tradeoffs.

Pool fit and cleaning reach

Dolphin S50 is intended for above-ground pools, while Dolphin Wave 140 is intended for commercial pools. Dolphin S50 is rated for pools up to 30 ft; Dolphin Wave 140 is rated up to 127 ft. Each cleans floor, so coverage alone does not separate them. Dolphin S50 lists 1 active brush. Dolphin Wave 140 lists 6 active brushes.

Filtration and debris

Both models include Basket.

Controls and day-to-day ownership

Dolphin S50 provides one-touch starts and power-supply controls; Dolphin Wave 140 provides one-touch starts and included remote control. Dolphin S50 uses a 40 ft corded cable, while Dolphin Wave 140 uses a 140 ft corded cable. Dolphin S50 is listed at 14 lb versus 55.1 lb for Dolphin Wave 140; that 41.1 lb difference matters when lifting the robot from the pool.

Price, warranty and the decision

Dolphin S50 is listed at $649 and Dolphin Wave 140 at $8,499; Dolphin S50 is $7,850 less. Dolphin S50 lists a 2-year warranty compared with 3 years for Dolphin Wave 140. These robots are built for different jobs, so pool type and facility capacity decide the comparison before individual features do. For a residential pool, the Pool Express pick is Dolphin Escape. Inground and above-ground pools up to 30 ft that need floor cleaning. For a commercial facility, the Pool Express pick is Dolphin Wave 100. Commercial pools up to 88 ft that need floor, wall and waterline cleaning.

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 S50	Dolphin Wave 140
Cleans the pool floor	Yes	Yes
Climbs and cleans walls	No	No
Scrubs the waterline	No	No
Fine-debris filter included	No	No
Large-debris filter	Yes	Yes
Automatic scheduling	No	No
Smartphone app	No	Not listed
Anti-tangle swivel	Not listed	No
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 S50 stands out

Dolphin S50 is the better fit for shoppers prioritizing the lower $649 starting price.

Is listed $7,850 lower
Weighs 14 lb versus 55.1 lb

Where Dolphin Wave 140 stands out

Dolphin Wave 140 is the better fit for pools up to 127 ft.

Uses 6 active brushes instead of 1
Carries a 3-year warranty instead of 2 years
Is rated for pools up to 127 ft