Dolphin S400

The ultimate cleaning performance

Product No. 99996261-US

The Dolphin S400 pushes the limits when it comes to pool cleaning. This Wi-Fi connected cleaner is loaded with advanced cleaning features for ultimate convenience and flexibility when it comes to pool cleaning. Get a hassle-free clean without the manual work.

Warranty (years) : 2
Wi-Fi® connectivity

Main Features


Just plug it in, drop into the pool, for a hassle free clean

MyDolphin™ Plus Mobile app

Smart control of your Dolphin - Anytime, Anywhere

Powerful Active Scrubbing

Intense scrubbing for an unmatched clean

Easy Access Top Load Filter

No more touching the debris! Lift the filter out, unsnap the bottom and rinse

Pick-Up Mode

Conveniently waits at the edge of your pool for quick and easy removal

Tech Specs

  • Maximum Pool length 50 ft
  • Cleaning Coverage Floor, Walls and Waterline
  • Default Cycle Time 2 Hours
  • Warranty (years) 2
  • Delay Feature Yes
  • Weekly Timer Yes
  • Mobile Application MyDolphin™ Plus
  • Caddy or Stand Included Caddy
  • Anti Tangling Swivel Yes
  • Filter Type Multi-Layer

  • Automation Mode Yes

  • Package Dimensions 23.7x19.4x19.6 inch
  • Cable Length 60 ft
  • Robot Weight 18.5 lb

  • Filter Access Top Access
  • Full Filter Indicator Yes
  • Waterline Scrubbing Yes
  • Enhanced Cleaning Cycles Yes
  • Active Brush Yes
  • Number of Brushes 2
  • Brush Type Standard Brush
  • Suction Rate 4000.0 gph

  • Pool Shape Rectangular, Round, Free Shape, Kidney
  • Pool Classification In Ground

  • Remote Control No
  • EAN / UPC 850015249556



User manual


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Robot Comparison

Maximum Pool length

50 ft
50 ft

Cleaning Coverage

Floor, Walls and Waterline
Floor, Walls and Waterline

Cycle Duration

1.5, 2, 2.5

Filter Type

Fine Filter Kit

Mobile Application

MyDolphin™ Plus
MyDolphin™ Plus

Anti Tangling Swivel


Caddy or Stand Included


Warranty (years)


Add-On Accessories










63 Reviews
5 32
4 11
3 7
2 7
1 6
72% of reviews would recommend this product
Share Your Thoughts
1-2 of 63 Reviews
Joe Benigno
May 24, 2023
Great Auto Pool Vacuum

The S400 does a great job cleaning the bottom, walls, and waterline of my in ground pool. I really love the auto out feature, where the Dolphin comes to the side and rises to the waterline so it can be removed. The ease of removing and cleaning the filter is also one of the best features. Other features that I enjoy, are the ability to schedule, turn on, and control the S400 via the phone app. The S400 comes with a caddy, for storage, so when the clean cycle is done, I remove it, clean the filter, rinse off the Dolphin and store it on the caddy, ready for the next use. It is just a great way to keep the pool clean with minimum hassle

Yes, I would recommend this product to a friend
Was this review helpful? 3 0
Linda Wilson
May 10, 2023
Love it!

Our in ground pool is cement. We live near a corn processing plant which result in small corn particles in the air which settle in the bottom of the pool and leaving a stain. Prior to buying our Dolphin we drained the pool to scrub the stain every spring. Very costly to replace water. We bought our Dolphin early last spring and used it every day from pool opening to closing. No more stains. Dolphin is excellent!

Yes, I would recommend this product to a friend
Was this review helpful? 1 0