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Dolphin Liberty 400 Review

Dive into how the Dolphin Liberty 400 performs, its features, what's included, and how it works in our in-depth review. With years of experince in the pool industry, let us help find you the perfect pool robot.

What features does it have?

Spend more time in the water and less time maintaining it. The Dolphin Liberty 400 brings dependable, automated cleaning to your pool so you can skip the manual vacuuming and brushing. Here's a clear look at what this model does well, and what to weigh before you buy in 2026.

Wall Climbing

Clean like a pro. With wall coverage, the Dolphin Liberty 400 can clean and scale your walls with precision and power. While Wall Climbing is a great feature, don't get this confused with the superior waterline cleaning feature.

What is Dolphin Liberty 400 missing?

Waterline Cleaning

Dolphin E70 Waterline Cleaning
Dolphin Explorer E70's Waterline Cleaning

Dolphin Liberty 400 does not included waterline cleaning. Not only is this an essential feature that you'll want when looking for a pool robot, but one you will likely need. Waterline cleaning enables the robot to climb and reach the dirtest part of your swimming pool. Without this feature, you'll still need to manually clean your waterline by hand with a brush to prevent any algae or scum that builds up. It is one feature that you'll need that is not included with the Dolphin Liberty 400.

Leaf Bag

Dolphin Premier Leaf Bag
Dolphin Premier's EXCLUSIVE Oversized Leaf Bag

With leaves being a common issue, it would be safe to assume most pool robots utilize a leaf bag. Well, no so fast. Nearly every robotic pool cleaner is missing a leaf bag, except the Dolphin Premier. If you have a lot of leaves, this is the best pool robot for leaves. Not to mention the Premier's 3 year warranty, Dual Commercial Motors, and Multi-Media™ make it one of the best models available.

To set expectations: the Liberty 400 uses standard filtration rather than NanoFilters and isn't a ProLine or Max-Series machine. If premium, fine-debris filtration and commercial-grade power are priorities for you, a ProLine cleaner like the Dolphin Premier or a Max-Series model is a worthwhile upgrade.

What's included with the Dolphin Liberty 400?

The Dolphin Liberty 400 includes everything you'll need. Here is what is included with the unit:

  • Dolphin Liberty 400 Unit

  • Power Supply

  • Standard Filters

  • 2 Year Warranty

How to set up the Dolphin Liberty 400

Simply plug and play. All robotic pool cleaners are ready to go right out of the box. No booster pump or assembly needed. The Liberty 400 has everything needed to get started in its box. It's that easy.

Comparing the cordless Liberty range? Read our Dolphin Liberty 300 review and Dolphin Liberty 600 review, or step up to the flagship Dolphin Premier review.

Why Poolbots?

Buying from Poolbots means buying with confidence. With 25+ years in the pool industry and full Dolphin Authorized Dealer status, we provide the complete, non-prorated manufacturer's warranty on every robot, plus free shipping and a genuine 30-Day Trial with NO restocking fee, ever.

Why wait to reclaim your weekends? Order the Dolphin Liberty 400 today to begin your trial, or explore the best robotic pool cleaners and talk to our experts for a personalized recommendation.

Compare Dolphin Liberty 400

Compare the Dolphin Liberty 400 to other top robotic pool cleaners like the Dolphin Premier. Want to compare the Dolphin Liberty 400 to more robotic pool cleaners? Head over to our compare page.

Dolphin ProLine
Dolphin Logo Liberty 400 Premier
Cleans Waterline
No
Yes
Nano
Filtration
No
Yes
MultiMedia
No
Yes
Leaf Bag
No
Yes
Dual Stabilizer
No
Yes
3 Year Warranty
No
Yes
No Restocking Fee
No
Yes
30 Day Trial
No
Yes
Shop Now Buy Buy

Dolphin Liberty 400 Specifications

Waterline Cleaning No
Wall Climbing Yes
Dual Stabilizer No
Number of Motors 2
Gallons Filtered Per Hour
Filter Types Filter Basket
Pool Coverage Floor and Walls
Pool Types In-Ground & Above Ground
Pool Size 50 ft
Pool Shapes Rectangle, Oval, or Freeform
Pool Surfaces Concrete, Plaster, Gunite, Pebble, Tile, Vinyl Liner, Fiberglass
Cable Length No Cable
Anti-Tangle Swivel
Obstacle Avoidance Steps, Ladder, Drain Cover, Ledges, Pop-Ups
Warranty 2 Years
Brand Dolphin
Manufacturer Maytronics
Part Number

Compare Dolphin Liberty 400

Want to compare Dolphin Liberty 400 to other robotic pool cleaners? Read in-depth comparisons against all the top pool robots out there today. Can't decide? Live chat with our pool experts here

Try for 30 days

Buy with Confidence

Try any robot in your pool for 30 days. We believe a pool robot is an investment, and we know you'll love it. Which is why we have a 30 Day Trial. 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.

Here at Poolbots, we carry only the top models for the top brands. All of our pool robots are backed by a full manufacturer's warranty - not prorated or limited to cycles like other pool robots.

Liberty 400 Accessories

Dolphin Universal Caddy

Easily transport your Dolphin Liberty 400 with the Dolphin Universal Caddy. Fits any Dolphin Robotic Pool Cleaner.

Read Our Reviews

Learn more about the Dolphin Liberty 400 on our review. 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 Liberty 400 Review or browser other top robotic pool cleaner reviews.

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