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Free 1-2 Day Shipping. Low Price Guarantee. Easy Returns/Exchanges.

Choose from top models from the top brands.

Dolphin S400 versus Dolphin S100

Compare Features, Filters, and Warranty

S100 or S400. Which wins?

Diving into the S100 vs S400, our pool experts distinguish the key features you'll want to look for when choosing a pool robot. That way, you can decide between the Dolphin S400 or Dolphin S100.

Compare essential features...

Dolphin ProLine
Dolphin Logo S400 S100 Sigma Premier
Cleans Waterline Yes
No
Yes Yes
Nano
Filtration
No
No
Yes Yes
MultiMedia
No
No
No
Yes
Dual Stabilizer
No
No
Yes Yes
Gyroscope
No
No
Yes
No
3 Year Warranty
No
No
Yes Yes
No Restocking Fee
No
No
Yes Yes
30 Day Trial
No
No
Yes Yes
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Shoppers ultimately bought... Compare vs.

Dolphin Sigma

Sigma adds waterline cleaning, NanoFilters™, triple motors, gyroscope, 3 year warranty + 30 Day Free Trial.

Dolphin Premier

Premier adds waterline cleaning, commercial grade motors, MultiMedia™, NanoFilters™, 3 year warranty + 30 Day Free Trial.

Compare Dolphin S400 vs Dolphin S100

Features S400 S100
Standard Filter yes yes
NanoFilters™ no no
MaxBin™ no no
Multi-Media™ no no
Leaf Bag no no
Wall Climbing yes yes
Waterline Cleaning yes no
Programmable Timer yes yes
Full Filter Indicator yes no
Gyroscope no no
Dual Stabilizer no no
Anti-Tangle Swivel yes no
3 Year Warranty no no

Compare Features

Standard Fine Filter

These standard filters help capture larger items such as small leaves and other debris, while maximizing flow rate. However, if your pool struggles with cloudy pool water, small algae, or sand. You many want to consider a unit with NanoFilters™.

NanoFilter™ vs Standard Filters
NanoFilter™ (left) vs Standard Filters (right)
yes
The Dolphin S400 includes a standard filter.
yes
The Dolphin S100 includes a standard filter.

Programmable Weekly Timer

An automatic pool cleaner should be automatic, right? With a programmable weekly timer, you can set the robot to clean at different intervals. So your pool robot can clean for you everyday of the week while you sit back and relax - without the need to manually turn it on and off everyday.

yes
The Dolphin S400 includes a weekly timer.
yes
The Dolphin S100 includes a weekly timer.

Full Filter Indicator

Let's you know when it is time to clean. With a full filter indicator, you won't have to guess when it is time to clean. The power supply will alert you directly, without having to pull out the unit to check.

Full Filter Indicator
yes
The Dolphin S400 includes a full filter indicator.
yes
The Dolphin S100 does not include a full filter indicator.

Anti-Tangle Cable Swivel

Say goodbye to pesky tangled cords. An anti-tangle swivel allows the robot to move 360 degrees around your pool without the cord getting tangled. So you can sit back and enjoy while your pool robot vacuums and cleans for you.

yes
The Dolphin S400 includes an anti-tangle swivel.
yes
The Dolphin S100 does not include an anti-tangle swivel.

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      Compare Specifications

      Dolphin S400 Dolphin S100

      Part Number 99996261-US 99996121-USF
      ASIN
      Waterline Cleaning Yes No
      Multi-Media® No No
      # of Filters Included: Ultra-Fine Filter Kit Ultra-Fine Filter Kit
      Filter Cleaning Top Access Top Access
      Cleaning Coverage Floor, Walls and Waterline Floor and Walls
      Cleaning Cycle 1.5, 2 hours 2 hours
      Number of Brushes 2 1
      Cable Length 60 ft 50 ft
      Anti-Tangle Swivel Yes No
      Pool Types In Ground In Ground
      Maximum Pool Size 50 ft 33 ft
      Pool Shape Rectangle, Oval, or Freeform Rectangle, Oval, or Freeform
      Obstacles Steps, Ladder, Drain Cover, Ledges, Pop-Ups Steps, Ladder, Drain Cover, Ledges, Pop-Ups
      Surface Gunite, Fiberglass, Vinyl, Liner Gunite, Fiberglass, Vinyl, Liner
      Media-Alert® Yes No
      Automated Weekly Timer Yes Yes
      Remote operation No No
      Restocking Fee No
      No
      Warranty 2 Years 2 Years
      Read Reviews Dolphin S400 Review Dolphin S100 Review

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      Read Our Reviews

      Learn more about the Dolphin S400 and Dolphin S100 in our reviews. Our in-depth pool robot reviews are written by our pool experts and will help you make an informed decision when purchasing a robotic pool cleaner for your pool. Read the Dolphin S100 Review, Dolphin S400 Review, or browser other top robotic pool cleaner reviews.

      WHAT'S NEXT?

      Try any in your own pool for 30 days.

      Every pool deserves an intelligent robot. If you don't love it, simply return the robot. Unlike the other guys, we never charge a restocking fee or any other fees - meaning no restocking fee ever.

      Pool Robot Buying Guide