Robots
Featured Robots
Pool Type
Brands
Categories
Deals & More
Free 1-3 Day FedEx Shipping
Low Price Guarantee
Easy Returns & Exchanges
Pool Expert Support
Shop All Robots Deals & Specials
Free 1-2 Day Shipping. Low Price Guarantee. Easy Returns/Exchanges. Choose from top models from the top brands.
Shop By
Pool Type
Debris Type
Brand
Budget
Equipment
Free 1-3 Day FedEx Shipping
Low Price Guarantee
Easy Returns & Exchanges
Pool Expert Support
Shop All Robots
Free 1-2 Day Shipping. Low Price Guarantee. Easy Returns/Exchanges. Find the perfect robot for your pool.
Learn
Free 1-2 Day Shipping. Low Price Guarantee. Easy Returns/Exchanges. Everything you need to pick the right pool robot.

Shopping Cart

Free FedEx Shipping & 30 Day Trial

Your cart is empty

Subtotal 0

Free shipping on robots to contiguous 48 states

Need Help?

Our Pool Experts are here to assist you

Mon-Fri 8am-5:30pm CST

Head-to-Head Comparison

Dolphin T15 vs Aquabot X4

Our pool experts compare features, filtration, specs, and value to help you pick the right robotic pool cleaner.

Dolphin T15

Dolphin T15

$699
VS
Our Top PickAquabot X4

Aquabot X4

★★★★☆ 4.2 (120)

$747$947
Save $200
View X4

Aquabot X4 or Dolphin T15 — which wins?

Our pick: the Aquabot X4

Diving into the Dolphin T15 vs Aquabot X4, our pool experts weigh filtration, cleaning coverage, smart features, and value. For most pools, the Aquabot X4 is the robot we recommend — and right now you save $200.

Side by Side

Feature Comparison

The features that matter most when comparing the Dolphin T15 and Aquabot X4.

Feature T15 X4Our Pick
Standard Filter
Wall Climbing
Anti-Tangle Swivel

Explained

Compare Features in Detail

Anti-Tangle Cable Swivel

Say goodbye to tangled cords. An anti-tangle swivel lets the robot move 360° around your pool without the cord getting tangled, so you can sit back while it cleans. Learn more ›

Dolphin T15 does not
Aquabot X4 includes this

Warranty Coverage

A robot is only as good as its warranty. Buying through an Authorized Dealer like Poolbots gets you the full manufacturer warranty — never pro-rated or limited by cleaning cycles — plus a 30-day in-pool trial with no restocking fees. Learn more ›

Dolphin T15 2-year warranty
Aquabot X4 2-year warranty

Watch

Videos

See the Dolphin T15 and Aquabot X4 in action.

The Details

Specifications

T15 X4
Part Number99996134-WINF
Waterline CleaningNoNo
Multi-Media®NoNo
Filters Included11
Filter CleaningTop AccessDual Filter Cartridges
Cleaning CoverageFloorFloor, Walls
Cleaning Cycle1.5 hours3 hours
Number of Brushes11
Cable Length40 ft60ft
Anti-Tangle SwivelNoYes
Pool TypesAbove GroundIn Ground
Maximum Pool Size30 ft50 ft
Pool ShapeRectangle, Oval, or FreeformRectangle, Oval, or Freeform
ObstaclesSteps, Ladder, Drain Cover, Ledges, Pop-UpsSteps, Ladder, Drain Cover, Ledges, Pop-Ups
SurfaceGunite, Fiberglass, Vinyl, LinerConcrete, Plaster, Gunite, Pebble, Tile, Vinyl Liner, Fiberglass
Media-Alert®NoNo
Automated Weekly TimerNoNo
Remote OperationNoNo
Restocking FeeNoNo
Warranty2 Years2 Years

Go Deeper

Read Our Expert Reviews

Our in-depth reviews are written by pool experts to help you make an informed decision.

Aquabot X4

★★★★☆ 4.2 (120 reviews)

Read Aquabot X4 Review

Try It in Your Own Pool for 30 Days

Every pool deserves an intelligent robot. If you don't love it, simply return it — we never charge a restocking fee. Free shipping on every order.

Shop the Dolphin T15
Talk to a Pool Expert ›
Pool Robot Buying Guide
Headphones Icon
Dolphin Cayman Review
Poolbots Support