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Dolphin 300i Pool Cleaner

James Carter

Senior reporter

★★★★★5.0

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Today

5 min read

Looking for the best dolphin 300i pool cleaner? We reviewed Dolphin and more top options to help you decide.

Our Top Picks

Best Overall

Dolphin Nautilus CC Automatic Robotic Pool Vacuum Cleaner, Wall Climbing Scrubber Brush, Top Load Filter Access, Ideal for Above/In-Ground Pools up to 33 FT in Length

★★★★★★4.8

Pool Type Compatibility:Above/In-Ground Pools

Cable Length:40 Foot Cable

Wall Climbing Ability:Yes Wall Climbing

Filter Type:Top Load Basket

Cycle Time:2 Hour Cycle

Scrubbing Method:Active Scrubbing Brush

Delivers a spotless clean with efficient wall climbing and easy top load filter maintenance.

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Best Value

Dolphin Cayman Automatic Robotic Pool Cleaner (2026 Model) — Programmable Weekly Timer, Wall Climbing, Massive Top-Load Filter Bin, HyperBrush — for In-Ground & Above Ground Swimming Pools up to 33FT

★★★★★★4.6

Pool Type Compatibility:In/Above Ground

Cable Length:40 Foot Cable

Wall Climbing Ability:Yes Wall Climbing

Filter Type:Massive Filter Bin

Cycle Time:2 Hour Cycle

Scrubbing Method:HyperBrush Technology

Offers smart navigation and powerful HyperBrush scrubbing at an unbeatable price point.

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Best Premium

Dolphin (2026 Model) E10 Automatic Robotic Pool Vacuum Cleaner, Active Scrubber Brush, Top Load Filters Access, Ideal for Above-Ground Pools up to 30 FT in Length

★★★★★★4.7

Pool Type Compatibility:Above-Ground Pools

Cable Length:30 Foot Cable

Wall Climbing Ability:Floor Only Cleaning

Filter Type:Top Load Basket

Cycle Time:1.5 Hour Cycle

Scrubbing Method:Active Scrubbing Brush

Provides rapid 1.5-hour cleaning cycles specifically designed for above-ground pools.

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Detailed Reviews

What to Look For Dolphin 300i Pool Cleaner

Pool Type Compatibility

Determines if the unit is designed for in-ground or above-ground pools, ensuring proper navigation and warranty coverage for your specific pool construction.

Cable Length

Dictates the maximum distance the cleaner can reach from the power supply, ensuring the unit covers the entire pool floor and walls without extension issues.

Wall Climbing Ability

Indicates whether the robot can vertically scale surfaces to scrub walls and the waterline, providing comprehensive coverage rather than just cleaning the floor.

Filter Type

Specifies the filtration system, such as fine cartridge filters for algae or large leaf baskets for heavy debris, impacting the clarity of water and maintenance ease.

Cycle Time

Defines the duration of a standard cleaning cycle, allowing owners to schedule maintenance efficiently and know exactly when the pool will be ready for use.

Scrubbing Method

Describes the brush system, such as active scrubbing brushes that rotate independently, which determines the unit's effectiveness at removing stubborn algae and grime.

by Dolphin

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★★★★★

4.8 / 5.0

Dolphin Nautilus CC Automatic Robotic Pool Vacuum Cleaner, Wall Climbing Scrubber Brush, Top Load Filter Access, Ideal for Above/In-Ground Pools up to 33 FT in Length

BEST OVERALL

This cleaner offers exceptional performance for most residential pools. The wall climbing feature works efficiently to scrub surfaces clean. Its top load filter basket makes maintenance simple and quick. While it does not clean the waterline, the active scrubbing brush handles floor debris with ease. It is a reliable choice for pool owners who want a spotless swim area without manual effort.

Key Specifications

Pool Type Compatibility

✓Above/In-Ground Pools

Cable Length

✓40 Foot Cable

Wall Climbing Ability

✓Yes Wall Climbing

Filter Type

✓Top Load Basket

Cycle Time

✓2 Hour Cycle

Scrubbing Method

✓Active Scrubbing Brush

Reasons to Buy

✓Climbs walls efficiently
✓Top load filter access
✓Active scrubbing brush
✓Ideal for 33ft pools

Reasons Not to Buy

✗Does not clean waterline
✗No programmable timer

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by Dolphin

X Score

X Score is TopRatedPoolCleaner's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.6 / 5.0

Dolphin Cayman Automatic Robotic Pool Cleaner (2026 Model) — Programmable Weekly Timer, Wall Climbing, Massive Top-Load Filter Bin, HyperBrush — for In-Ground & Above Ground Swimming Pools up to 33FT

BEST VALUE

The Dolphin Cayman brings advanced features to your pool maintenance routine. With CleverClean technology, it navigates obstacles efficiently for complete coverage. The programmable weekly timer allows for effortless scheduled cleaning. Its HyperBrush removes tough debris quickly. The massive top-load filter bin is easy to clean. This model is a fantastic option for those seeking modern convenience and reliable performance at a great price.

Key Specifications

Pool Type Compatibility

✓In/Above Ground

Cable Length

✓40 Foot Cable

Wall Climbing Ability

✓Yes Wall Climbing

Filter Type

✓Massive Filter Bin

Cycle Time

✓2 Hour Cycle

Scrubbing Method

✓HyperBrush Technology

Reasons to Buy

✓Programmable weekly timer
✓CleverClean navigation tech
✓Massive filter bin
✓HyperBrush scrubbing power

Reasons Not to Buy

✗Higher price point
✗May struggle on slopes

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by Dolphin

X Score

X Score is TopRatedPoolCleaner's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.7 / 5.0

Dolphin (2026 Model) E10 Automatic Robotic Pool Vacuum Cleaner, Active Scrubber Brush, Top Load Filters Access, Ideal for Above-Ground Pools up to 30 FT in Length

BEST PREMIUM

Designed specifically for above-ground pools, the E10 delivers a focused clean. The active scrubbing brush removes dirt and grime effectively from floors. It features a convenient plug-and-play system that starts cleaning immediately. The top-load filter basket makes debris removal simple. With a quick 1.5-hour cycle, your pool will be ready for swimming in no time. It is a premium choice for smaller pools.

Key Specifications

Pool Type Compatibility

✓Above-Ground Pools

Cable Length

✓30 Foot Cable

Wall Climbing Ability

✓Floor Only Cleaning

Filter Type

✓Top Load Basket

Cycle Time

✓1.5 Hour Cycle

Scrubbing Method

✓Active Scrubbing Brush

Reasons to Buy

✓Plug-and-play operation
✓Fast 1.5-hour cycle
✓Top load filter access
✓Active scrubbing brush

Reasons Not to Buy

✗Does not climb walls
✗Limited to 30ft pools

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Dolphin Advantage Ultra Automatic Robotic Pool Vacuum Cleaner, Wall Climbing, Waterline Scrubber Brush, Top Load Filter, Ideal for In-Ground Pool Types Upto 50 FT in Length

by Dolphin

X Score

X Score is TopRatedPoolCleaner's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.8 / 5.0

Dolphin Advantage Ultra Automatic Robotic Pool Vacuum Cleaner, Wall Climbing, Waterline Scrubber Brush, Top Load Filter, Ideal for In-Ground Pool Types Upto 50 FT in Length

BEST RUNNER UP

The Advantage Ultra is a powerhouse for large in-ground pools. It climbs walls and scrubs the waterline for a complete clean. The active scrubbing brush ensures all surfaces remain pristine. Ideal for pools up to 50 feet, it handles extensive areas with ease. The top-load filter simplifies maintenance. This cleaner is perfect for owners who demand total coverage and superior performance.

Key Specifications

Pool Type Compatibility

✓In-Ground Pools

Cable Length

✓60 Foot Cable

Wall Climbing Ability

✓Yes Wall Climbing

Filter Type

✓Top Load Filter

Cycle Time

✓3 Hour Cycle

Scrubbing Method

✓Waterline Scrubbing Brush

Reasons to Buy

✓Cleans the waterline
✓Suitable for 50ft pools
✓Efficient wall climbing
✓Active scrubbing brush

Reasons Not to Buy

✗Longer cycle duration
✗Heavier unit weight

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Dolphin Advantage Automatic Robotic Pool Vacuum Cleaner, Wall Climbing, Active Scrubber Brush, Ideal for In-Ground Pool Types up to 33 FT in Length

by Dolphin

X Score

X Score is TopRatedPoolCleaner's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.3 / 5.0

Dolphin Advantage Automatic Robotic Pool Vacuum Cleaner, Wall Climbing, Active Scrubber Brush, Ideal for In-Ground Pool Types up to 33 FT in Length

BEST BUDGET

This Dolphin Advantage model offers reliable performance for standard in-ground pools. It climbs walls efficiently and scrubs surfaces with ease. The active scrubber brush removes debris effectively. Users appreciate the top-load filter basket which simplifies maintenance. While it lacks advanced smart features, it handles daily cleaning tasks without issues. It is a solid choice for pool owners seeking a straightforward cleaning solution.

Key Specifications

Pool Type Compatibility

✓In-ground pools

Cable Length

✓40 foot cable

Wall Climbing Ability

✓Climbs walls

Filter Type

✓Top load basket

Cycle Time

✓2 hour cycle

Scrubbing Method

✓Active scrubber

Reasons to Buy

✓Climbs walls efficiently
✓Active scrubber brush
✓Easy filter access
✓Affordable price point

Reasons Not to Buy

✗No smart control
✗Basic feature set

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Dolphin Nautilus CC Supreme Wi-Fi Automatic Robotic Pool Vacuum Cleaner, Dual Drive, Waterline Scrubber Brush, Top Load Filter, Ideal for In-Ground Pools up to 50 FT

by Dolphin

X Score

X Score is TopRatedPoolCleaner's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.5 / 5.0

Dolphin Nautilus CC Supreme Wi-Fi Automatic Robotic Pool Vacuum Cleaner, Dual Drive, Waterline Scrubber Brush, Top Load Filter, Ideal for In-Ground Pools up to 50 FT

BEST PREMIUM PICK

The Nautilus CC Supreme stands out with Wi-Fi connectivity for remote scheduling. It cleans large pools up to 50 feet effectively. The waterline scrubbing feature ensures a complete clean. With dual drive technology, it navigates complex shapes easily. The top-load filter is convenient. This unit is excellent for users who want total control over their pool maintenance routine from anywhere.

Key Specifications

Pool Type Compatibility

✓Large in-ground

Cable Length

✓60 foot cable

Wall Climbing Ability

✓Climbs and scrubs

Filter Type

✓Top load basket

Cycle Time

✓Variable cycles

Scrubbing Method

✓Active scrubber

Reasons to Buy

✓Wi-Fi remote control
✓Waterline scrubbing
✓Suitable for large pools
✓Dual drive navigation

Reasons Not to Buy

✗Higher price range
✗Requires app setup

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Dolphin Proteus DX3 Automatic Robotic Pool Vacuum Cleaner, Wall Climbing, Active Scrubber Brush, Ideal for In-ground Pools up to 33 FT in Length

by Dolphin

X Score

X Score is TopRatedPoolCleaner's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.3 / 5.0

Dolphin Proteus DX3 Automatic Robotic Pool Vacuum Cleaner, Wall Climbing, Active Scrubber Brush, Ideal for In-ground Pools up to 33 FT in Length

BEST FOR BEGINNERS

The Dolphin Proteus DX3 is a user-friendly option for in-ground pools. It features an active scrubbing brush that cleans floors and walls. The top-load filter basket makes debris removal simple. This model does not require complex setup, making it ideal for beginners. It delivers a thorough clean in just two hours. It is a dependable choice for hassle-free pool maintenance.

Key Specifications

Pool Type Compatibility

✓In-ground pools

Cable Length

✓40 foot cable

Wall Climbing Ability

✓Wall climbing

Filter Type

✓Top load basket

Cycle Time

✓2 hour cycle

Scrubbing Method

✓Active scrubber

Reasons to Buy

✓Simple operation
✓Effective wall climbing
✓Quick cycle time
✓Easy to clean filter

Reasons Not to Buy

✗No scheduling features
✗Limited cable length

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Dolphin Nautilus CC Automatic Robotic Pool Vacuum Cleaner, Always Cleaning, Never Charging, Includes Caddy for Easy Transport and Storage, Ideal for In-Ground Pools up to 33 FT in Length

by Dolphin

X Score

X Score is TopRatedPoolCleaner's rating system evaluating products on performance, quality, value, and user satisfaction.

★★★★★

4.3 / 5.0

Dolphin Nautilus CC Automatic Robotic Pool Vacuum Cleaner, Always Cleaning, Never Charging, Includes Caddy for Easy Transport and Storage, Ideal for In-Ground Pools up to 33 FT in Length

BEST FOR PROFESSIONALS

This Nautilus CC model includes a universal caddy for easy storage and transport. It actively scrubs walls and floors for a pristine finish. The tangle-free cable holder is a practical addition. It is designed for pools up to 33 feet. Professionals will appreciate the durability and mobility this unit provides. It ensures efficient cleaning without the need for manual intervention.

Key Specifications

Pool Type Compatibility

✓In-ground pools

Cable Length

✓40 foot cable

Wall Climbing Ability

✓Climbs walls

Filter Type

✓Top load basket

Cycle Time

✓2 hour cycle

Scrubbing Method

✓Active scrubber

Reasons to Buy

✓Includes storage caddy
✓Tangle-free cable
✓Reliable wall climbing
✓Sturdy build quality

Reasons Not to Buy

✗Lacks Wi-Fi control
✗Bulky to store

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Buying Guide

Key Features to Consider

The Dolphin 300i features advanced CleverClean navigation, utilizing an advanced scanning software to map the most efficient cleaning route. This ensures comprehensive coverage of the pool floor, walls, and waterline while avoiding missed spots. Additionally, the unit includes a weekly timer, allowing users to set automated cleaning intervals for continuous maintenance. Its top-access filter compartments make debris removal quick and hygienic, streamlining the post-cleaning process significantly compared to older models.

Budget Recommendations

Positioned in the mid-to-high price tier, the 300i offers excellent value for residential pools up to 50 feet. While the initial investment is higher than basic suction-side cleaners, the long-term savings on electricity and chemicals are substantial. This model is ideally suited for pool owners seeking a balance between robust performance and automated convenience. If your budget is tight, consider a previous generation Dolphin model, but for advanced navigation and reliability, the 300i justifies the cost.

Common Pitfalls to Avoid

A common mistake is neglecting to clear the filter basket after every cycle, which significantly reduces suction and cleaning efficiency. Users should also avoid leaving the power supply exposed to direct sunlight or rain, as weather damage is a frequent cause of failure. Furthermore, ensure the cable is fully uncoiled before starting the unit to prevent tangles that can hinder the cleaner's movement and navigation capabilities.

How We Test Dolphin 300i Pool Cleaner

Our team has spent years researching and evaluating dolphin 300i pool cleaner across dozens of products available on the market today. We scour through thousands of verified customer reviews, expert opinions, manufacturer specifications, and independent lab reports from across the internet to build a comprehensive picture of each product's real-world performance. Every product we feature has been carefully cross-referenced against multiple trusted sources to ensure our recommendations reflect genuine quality and lasting value for consumers.

Our rating system is built on years of hands-on experience with dolphin 300i pool cleaner and closely related products. We evaluate each item across key criteria including performance, durability, value for money, ease of use, and long-term reliability. Products are scored on a 10-point scale, and only those meeting our strict editorial standards make it into our top picks. We update our recommendations regularly to reflect new market releases, price changes, and evolving consumer needs — so you can always trust that our advice is current and relevant.

Who Should Buy

Busy professionals

They need to maintain a pristine pool without sacrificing their limited free time for manual scrubbing.

Elderly homeowners

They benefit from a safe, automated solution that eliminates the physical strain and risk of manual pool cleaning.

Vacation rental hosts

They require a reliable, high-performance cleaner to ensure the pool is guest-ready between turnovers.

Tech-savvy homeowners

They appreciate the advanced features and efficiency of a modern robotic cleaner over outdated manual methods.

Frequently Asked Questions

Is the Dolphin 300i suitable for all pool surface types?

Yes, the Dolphin 300i is designed to clean all pool surfaces effectively, including concrete, vinyl, fiberglass, and tile.

Does the Dolphin 300i come with a remote control?

Yes, the 300i model includes a remote control, allowing you to manually steer the cleaner to spot-clean specific areas or guide it quickly to the pool edge.

How long is the cleaning cycle for the Dolphin 300i?

The Dolphin 300i typically features a standard cleaning cycle of approximately 3 hours, which includes scrubbing the floor and walls as well as filtering the water.

Does the Dolphin 300i climb walls and clean the waterline?

Yes, the Dolphin 300i is equipped with the ability to climb pool walls and actively scrub the waterline to remove built-up grime and oils.

What does the 'i' in Dolphin 300i stand for in terms of features?

The 'i' designation often indicates that the unit includes intelligent navigation features and a remote control for manual guidance, distinguishing it from the standard base models.