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Product description

Experience the ultimate in pool cleaning convenience with the Dolphin Liberty 400. This cordless robot offers top-of-the-line freedom and unmatched agility, ensuring crystal-clear, debris-free water without the hassle of a cable.

Easy to charge

The Dolphin Liberty 400 features Magnetic-Connect for super easy charging, the charging lead simply snaps into place, once charged the cordless operation gives the cleaner the freedom to move around your pool without getting tangled.

Easy to use

The Liberty 400 works with the MyDolphin™ Plus app for easy cleaning program selection using your smart device.

Choose from three selectable cleaning modes, Regular cleans pool floor, walls, and waterline, Floor cleans just the pool floor and Ultra Clean offers slower movement and stronger suction, cleaning all pool surfaces (floor, wall, waterline) more thoroughly.

The advanced ECO mode keeps your pool floor clean for a week on a single charge, the LIBERTY 400 automatically cleans your pool floor with the choice of three x 40 minute, four x 30 minute or two x 60 minute cycles per week.

The Dolphin Liberty 400 is suitable for most in-ground and rigid wall (wooden) above ground pools up to 10m in length, the cleaner will climb most surfaces except shiny surfaces such as stainless steel and smooth tiles.

Easy to remove

Featuring Click-Up™ for sound activated pick-up, simply shake the clicker in the water for at least 3 secs (may need longer shake if cleaner is in standby) and the cleaner will move towards the clicking sound so you can easily remove the cleaner from the pool (not available while unit is in ECO mode). Quick water release ensures lightweight removal from pool after cleaning.

Easy to clean

The filtration basket with fine and ultra-fine filters is accessed through the top of the cleaner, the handle automatically pops up when the lid is opened so the basket can be easily removed, emptied and rinsed with a garden hose after every use.

Always Connected

Select Between Cleaning Modes

Select Between Cleaning Modes

Set cleaning cycles for weekly, daily, or specific times, to suit your pool state and your schedule.

Call Your Robot to the Waterline for a Pick-Up

Call Your Robot to the Waterline

Use the Pick-Up mode on your MyDolphin™ Plus app to tell your Dolphin to climb to you for easy retrieval from the pool.

Set a Weekly Cleaning Schedule

Set a Weekly Cleaning Schedule

The Weekly Timer feature enables you to set an automatic cleaning schedule for the week ahead.

Manually Drive Your Robot

Manually Drive Your Robot

Drive your Dolphin around the pool for specific spot cleaning or pure fun!

Use Voice Control to Operate Your Dolphin

Use Voice Control

Set Siri® shortcuts for handfree control of your Dolphin.

Filter Status Indicator

Filter Status Indicator

See your Dolphin filter's status without pulling it out of the pool.

Key features

Cordless operation for maximum agility

Inductive charging with Magnetic-Connect for easy charging (six hour charge)

Ultra clean mode offers slower movement and stronger suction for more thorough cleaning (requires MyDolphin™ Plus app)

MyDolphin™ Plus Mobile app, smart control of your Dolphin from your mobile device

Click-Up sound activated pick-up for easy removal from the pool

Power button and battery charge indicator on rear of cleaner

Single Active Brushes scrub away dirt and bacteria

Regular mode cleans floor, walls and waterline, Floor mode cleans just the floor, cycle time up to 2.5 hours depending on mode

Cycle select for floor/walls or floor only

Advanced ECO Mode keeps your pool floor clean for a week on a single charge

Suitable for in-ground and rigid wall (wooden) above-ground pools up to 10m in length

Lightweight and easy to handle

Interchangeable fine and ultra-fine (or combined) filtration system with efficient dirt collection

Top-access filtration system – easy to remove and clean

LED lights indicate status of machine

Accessories include 2 x fine/ultra fine panels + 2 x ultra fine panels, filter basket, grab hook, charger, impeller tool, clicker and accessories organiser

24 months warranty on all parts (excluding brushes & filters)

Downloads

Specifications

Pool Size
Up to 10m length
Surfaces
Floor, walls & waterline
Cycle Time
up to 2.5 hours (from 6 hour charge)
Cable
Cordless
Brushes
PVC
Weight
8.1Kg
Motor Voltage
Lithium-ion 5,000mAh battery, 25.2V@5Ah
Filtration
Fine/ultra-fine net canister
Power Supply
30VDC, IP54
Bluetooth Connectivity
MyDolphinTM Plus Mobile App
Suction Rate
18m³ per hour
Warranty
2 years

A note about algae

Robot pool cleaners will not fully remove algae from your pool

Cleaners may not climb algae covered surfaces

Algae should always be treated and removed manually before using a robot cleaner.

Used regularly a robot cleaner can help to prevent the regrowth of algae alongside filtration and correct water chemistry.

Will the LIBERTY 400 work in my pool?

Maximum pool length
10m
In-ground pools
Yes
Above-ground pools
Rigid sides only
Wooden pools
Yes
Liner pools
Yes
Rough tiled pools
Yes
Fibreglass pools
Yes
Coated concrete pools
Yes
Stainless steel pools
No
Smooth tiled pools
No

Technical data

Charger cable included

Battery Lithium-ion | 5,000mAh | 25.2V@5Ah / 126Wh

Automatic shut off at end of cycle time

Motor protection IP68

Charger protection IP54

Chlorine Max 4 ppm / NaCI Max 5000 ppm

pH 7.0 – 7.8

Temperature 6 – 35°C

Minimum depth 0.3m / Maximum depth 3m

Product Description

Experience the ultimate in pool cleaning convenience with the Dolphin Liberty 400. This cordless robot offers top-of-the-line freedom and unmatched agility, ensuring crystal-clear, debris-free water without the hassle of a cable.

Easy to charge

The Dolphin Liberty 400 features Magnetic-Connect for super easy charging, the charging lead simply snaps into place, once charged the cordless operation gives the cleaner the freedom to move around your pool without getting tangled.

Easy to use

The Liberty 400 works with the MyDolphin™ Plus app for easy cleaning program selection using your smart device.

Choose from three selectable cleaning modes, Regular cleans pool floor, walls, and waterline, Floor cleans just the pool floor and Ultra Clean offers slower movement and stronger suction, cleaning all pool surfaces (floor, wall, waterline) more thoroughly.

The advanced ECO mode keeps your pool floor clean for a week on a single charge, the LIBERTY 400 automatically cleans your pool floor with the choice of three x 40 minute, four x 30 minute or two x 60 minute cycles per week.

The Dolphin Liberty 400 is suitable for most in-ground and rigid wall (wooden) above ground pools up to 10m in length, the cleaner will climb most surfaces except shiny surfaces such as stainless steel and smooth tiles.

Easy to remove

Featuring Click-Up™ for sound activated pick-up, simply shake the clicker in the water for at least 3 secs (may need longer shake if cleaner is in standby) and the cleaner will move towards the clicking sound so you can easily remove the cleaner from the pool (not available while unit is in ECO mode). Quick water release ensures lightweight removal from pool after cleaning.

Easy to clean

The filtration basket with fine and ultra-fine filters is accessed through the top of the cleaner, the handle automatically pops up when the lid is opened so the basket can be easily removed, emptied and rinsed with a garden hose after every use.

Always Connected

Select Between Cleaning Modes

Select Between Cleaning Modes

Set cleaning cycles for weekly, daily, or specific times, to suit your pool state and your schedule.

Call Your Robot to the Waterline for a Pick-Up

Call Your Robot to the Waterline

Use the Pick-Up mode on your MyDolphin™ Plus app to tell your Dolphin to climb to you for easy retrieval from the pool.

Set a Weekly Cleaning Schedule

Set a Weekly Cleaning Schedule

The Weekly Timer feature enables you to set an automatic cleaning schedule for the week ahead.

Manually Drive Your Robot

Manually Drive Your Robot

Drive your Dolphin around the pool for specific spot cleaning or pure fun!

Use Voice Control to Operate Your Dolphin

Use Voice Control

Set Siri® shortcuts for handfree control of your Dolphin.

Filter Status Indicator

Filter Status Indicator

See your Dolphin filter's status without pulling it out of the pool.

We Are Rated Excellent on TrustPilot

Dolphin Liberty 400 Cordless Robot Pool Cleaner (Floor, Walls & Waterline)

Product description

Experience the ultimate in pool cleaning convenience with the Dolphin Liberty 400. This cordless robot offers top-of-the-line freedom and unmatched agility, ensuring crystal-clear, debris-free water without the hassle of a cable.

Easy to charge

The Dolphin Liberty 400 features Magnetic-Connect for super easy charging, the charging lead simply snaps into place, once charged the cordless operation gives the cleaner the freedom to move around your pool without getting tangled.

Easy to use

The Liberty 400 works with the MyDolphin™ Plus app for easy cleaning program selection using your smart device.

Choose from three selectable cleaning modes, Regular cleans pool floor, walls, and waterline, Floor cleans just the pool floor and Ultra Clean offers slower movement and stronger suction, cleaning all pool surfaces (floor, wall, waterline) more thoroughly.

The advanced ECO mode keeps your pool floor clean for a week on a single charge, the LIBERTY 400 automatically cleans your pool floor with the choice of three x 40 minute, four x 30 minute or two x 60 minute cycles per week.

The Dolphin Liberty 400 is suitable for most in-ground and rigid wall (wooden) above ground pools up to 10m in length, the cleaner will climb most surfaces except shiny surfaces such as stainless steel and smooth tiles.

Easy to remove

Featuring Click-Up™ for sound activated pick-up, simply shake the clicker in the water for at least 3 secs (may need longer shake if cleaner is in standby) and the cleaner will move towards the clicking sound so you can easily remove the cleaner from the pool (not available while unit is in ECO mode). Quick water release ensures lightweight removal from pool after cleaning.

Easy to clean

The filtration basket with fine and ultra-fine filters is accessed through the top of the cleaner, the handle automatically pops up when the lid is opened so the basket can be easily removed, emptied and rinsed with a garden hose after every use.

Always Connected

Select Between Cleaning Modes

Select Between Cleaning Modes

Set cleaning cycles for weekly, daily, or specific times, to suit your pool state and your schedule.

Call Your Robot to the Waterline for a Pick-Up

Call Your Robot to the Waterline

Use the Pick-Up mode on your MyDolphin™ Plus app to tell your Dolphin to climb to you for easy retrieval from the pool.

Set a Weekly Cleaning Schedule

Set a Weekly Cleaning Schedule

The Weekly Timer feature enables you to set an automatic cleaning schedule for the week ahead.

Manually Drive Your Robot

Manually Drive Your Robot

Drive your Dolphin around the pool for specific spot cleaning or pure fun!

Use Voice Control to Operate Your Dolphin

Use Voice Control

Set Siri® shortcuts for handfree control of your Dolphin.

Filter Status Indicator

Filter Status Indicator

See your Dolphin filter's status without pulling it out of the pool.

Key features

Cordless operation for maximum agility

Inductive charging with Magnetic-Connect for easy charging (six hour charge)

Ultra clean mode offers slower movement and stronger suction for more thorough cleaning (requires MyDolphin™ Plus app)

MyDolphin™ Plus Mobile app, smart control of your Dolphin from your mobile device

Click-Up sound activated pick-up for easy removal from the pool

Power button and battery charge indicator on rear of cleaner

Single Active Brushes scrub away dirt and bacteria

Regular mode cleans floor, walls and waterline, Floor mode cleans just the floor, cycle time up to 2.5 hours depending on mode

Cycle select for floor/walls or floor only

Advanced ECO Mode keeps your pool floor clean for a week on a single charge

Suitable for in-ground and rigid wall (wooden) above-ground pools up to 10m in length

Lightweight and easy to handle

Interchangeable fine and ultra-fine (or combined) filtration system with efficient dirt collection

Top-access filtration system – easy to remove and clean

LED lights indicate status of machine

Accessories include 2 x fine/ultra fine panels + 2 x ultra fine panels, filter basket, grab hook, charger, impeller tool, clicker and accessories organiser

24 months warranty on all parts (excluding brushes & filters)

Downloads

Specifications

Pool Size
Up to 10m length
Surfaces
Floor, walls & waterline
Cycle Time
up to 2.5 hours (from 6 hour charge)
Cable
Cordless
Brushes
PVC
Weight
8.1Kg
Motor Voltage
Lithium-ion 5,000mAh battery, 25.2V@5Ah
Filtration
Fine/ultra-fine net canister
Power Supply
30VDC, IP54
Bluetooth Connectivity
MyDolphinTM Plus Mobile App
Suction Rate
18m³ per hour
Warranty
2 years

A note about algae

Robot pool cleaners will not fully remove algae from your pool

Cleaners may not climb algae covered surfaces

Algae should always be treated and removed manually before using a robot cleaner.

Used regularly a robot cleaner can help to prevent the regrowth of algae alongside filtration and correct water chemistry.

Will the LIBERTY 400 work in my pool?

Maximum pool length
10m
In-ground pools
Yes
Above-ground pools
Rigid sides only
Wooden pools
Yes
Liner pools
Yes
Rough tiled pools
Yes
Fibreglass pools
Yes
Coated concrete pools
Yes
Stainless steel pools
No
Smooth tiled pools
No

Technical data

Charger cable included

Battery Lithium-ion | 5,000mAh | 25.2V@5Ah / 126Wh

Automatic shut off at end of cycle time

Motor protection IP68

Charger protection IP54

Chlorine Max 4 ppm / NaCI Max 5000 ppm

pH 7.0 – 7.8

Temperature 6 – 35°C

Minimum depth 0.3m / Maximum depth 3m

Dolphin Liberty 400 Cordless Robot Pool Cleaner (Floor, Walls & Waterline)

We Are Rated Excellent on TrustPilot

Dolphin Liberty 400 Cordless Robot Pool Cleaner (Floor, Walls & Waterline)

£1,495 £1,245.83 + vat

Only 2 left in stock Delivery from next working day

Payment methods

Payment methods we accept

Become a Poolstar Stockist

This product is ONLY available to Pool and Spa trade customers.

For more information on the full Poolstar pool, spa and wellness range or to speak to us about becoming a stockist please call 01284 658770 or email our sales team.

We are proud to be the official UK & Ireland Poolstar distribution partner.

Download the Poolstar 2025-2026 Catalogue - pdf (73Mb)

Sales and technical help

Not sure what product is right for your application? Need help selecting the right model?

Our sales and service teams are available Monday to Friday, 9am to 5pm

01284 658770

Mon - Fri 9am - 5pm (you can leave a message out-of-hours)

Product code: 111783 Category: Tag:

Product description

Experience the ultimate in pool cleaning convenience with the Dolphin Liberty 400. This cordless robot offers top-of-the-line freedom and unmatched agility, ensuring crystal-clear, debris-free water without the hassle of a cable.

Easy to charge

The Dolphin Liberty 400 features Magnetic-Connect for super easy charging, the charging lead simply snaps into place, once charged the cordless operation gives the cleaner the freedom to move around your pool without getting tangled.

Easy to use

The Liberty 400 works with the MyDolphin™ Plus app for easy cleaning program selection using your smart device.

Choose from three selectable cleaning modes, Regular cleans pool floor, walls, and waterline, Floor cleans just the pool floor and Ultra Clean offers slower movement and stronger suction, cleaning all pool surfaces (floor, wall, waterline) more thoroughly.

The advanced ECO mode keeps your pool floor clean for a week on a single charge, the LIBERTY 400 automatically cleans your pool floor with the choice of three x 40 minute, four x 30 minute or two x 60 minute cycles per week.

The Dolphin Liberty 400 is suitable for most in-ground and rigid wall (wooden) above ground pools up to 10m in length, the cleaner will climb most surfaces except shiny surfaces such as stainless steel and smooth tiles.

Easy to remove

Featuring Click-Up™ for sound activated pick-up, simply shake the clicker in the water for at least 3 secs (may need longer shake if cleaner is in standby) and the cleaner will move towards the clicking sound so you can easily remove the cleaner from the pool (not available while unit is in ECO mode). Quick water release ensures lightweight removal from pool after cleaning.

Easy to clean

The filtration basket with fine and ultra-fine filters is accessed through the top of the cleaner, the handle automatically pops up when the lid is opened so the basket can be easily removed, emptied and rinsed with a garden hose after every use.

Always Connected

Select Between Cleaning Modes

Select Between Cleaning Modes

Set cleaning cycles for weekly, daily, or specific times, to suit your pool state and your schedule.

Call Your Robot to the Waterline for a Pick-Up

Call Your Robot to the Waterline

Use the Pick-Up mode on your MyDolphin™ Plus app to tell your Dolphin to climb to you for easy retrieval from the pool.

Set a Weekly Cleaning Schedule

Set a Weekly Cleaning Schedule

The Weekly Timer feature enables you to set an automatic cleaning schedule for the week ahead.

Manually Drive Your Robot

Manually Drive Your Robot

Drive your Dolphin around the pool for specific spot cleaning or pure fun!

Use Voice Control to Operate Your Dolphin

Use Voice Control

Set Siri® shortcuts for handfree control of your Dolphin.

Filter Status Indicator

Filter Status Indicator

See your Dolphin filter's status without pulling it out of the pool.

Key features

Cordless operation for maximum agility

Inductive charging with Magnetic-Connect for easy charging (six hour charge)

Ultra clean mode offers slower movement and stronger suction for more thorough cleaning (requires MyDolphin™ Plus app)

MyDolphin™ Plus Mobile app, smart control of your Dolphin from your mobile device

Click-Up sound activated pick-up for easy removal from the pool

Power button and battery charge indicator on rear of cleaner

Single Active Brushes scrub away dirt and bacteria

Regular mode cleans floor, walls and waterline, Floor mode cleans just the floor, cycle time up to 2.5 hours depending on mode

Cycle select for floor/walls or floor only

Advanced ECO Mode keeps your pool floor clean for a week on a single charge

Suitable for in-ground and rigid wall (wooden) above-ground pools up to 10m in length

Lightweight and easy to handle

Interchangeable fine and ultra-fine (or combined) filtration system with efficient dirt collection

Top-access filtration system – easy to remove and clean

LED lights indicate status of machine

Accessories include 2 x fine/ultra fine panels + 2 x ultra fine panels, filter basket, grab hook, charger, impeller tool, clicker and accessories organiser

24 months warranty on all parts (excluding brushes & filters)

Downloads

Specifications

Pool Size
Up to 10m length
Surfaces
Floor, walls & waterline
Cycle Time
up to 2.5 hours (from 6 hour charge)
Cable
Cordless
Brushes
PVC
Weight
8.1Kg
Motor Voltage
Lithium-ion 5,000mAh battery, 25.2V@5Ah
Filtration
Fine/ultra-fine net canister
Power Supply
30VDC, IP54
Bluetooth Connectivity
MyDolphinTM Plus Mobile App
Suction Rate
18m³ per hour
Warranty
2 years

A note about algae

Robot pool cleaners will not fully remove algae from your pool

Cleaners may not climb algae covered surfaces

Algae should always be treated and removed manually before using a robot cleaner.

Used regularly a robot cleaner can help to prevent the regrowth of algae alongside filtration and correct water chemistry.

Will the LIBERTY 400 work in my pool?

Maximum pool length
10m
In-ground pools
Yes
Above-ground pools
Rigid sides only
Wooden pools
Yes
Liner pools
Yes
Rough tiled pools
Yes
Fibreglass pools
Yes
Coated concrete pools
Yes
Stainless steel pools
No
Smooth tiled pools
No

Technical data

Charger cable included

Battery Lithium-ion | 5,000mAh | 25.2V@5Ah / 126Wh

Automatic shut off at end of cycle time

Motor protection IP68

Charger protection IP54

Chlorine Max 4 ppm / NaCI Max 5000 ppm

pH 7.0 – 7.8

Temperature 6 – 35°C

Minimum depth 0.3m / Maximum depth 3m

Over 1,000 reasons why customers choose us

We have over 1,000 five star reviews on TrustPilot, below is some of our most recent customer feedback.

You can trust us when we say we care about the service we provide both before and after your purchase, there are hundreds more five star reviews from happy customers on our Trustpilot page.

We have over 1,000 reviews on Trustpilot - read our customer reviews

Read our TrustPilot reviews

★ ★ ★ ★ ★

Excellent products and service

Richard Linstead (organic review)

AES and Simon have been consistently excellent – both in terms of the products they’ve supplied and the service during and after fulfilment. They’re all also genuinely nice people and I strongly recommend them.

★ ★ ★ ★ ★

AES have been fantastic

David Brear (verified purchase)

AES have been fantastic. From helping me get the right thing to helping me make sure I get the most from it! Very very helpful. Highly recommend.

★ ★ ★ ★ ★

Fantastic support

ZSteen (verified purchase)

Fantastic support before, during and after our purchase. Simon was very helpful recommended what we needed for our current setup, and even after when we were having a few teething issues he was always on hand to assist.

★ ★ ★ ★ ★

Helpful and informed

Graham Chester (verified purchase)

Nick was very helpful in sorting out a query we had about a pool bypass kit and how to install the kit. Sent us a diagram by email following a useful telephone conversation. We have now installed a bypass kit and are delighted it’s fully working. Thank you for your help.

★ ★ ★ ★ ★

Great Service

Paul Thompson (verified purchase)

Great service from the outset. Communication was spot on, and the engineers that attended were informative and pleasant. Can't fault anything from start to finish.