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An inground robotic pool cleaner does the whole job on its own — scrubbing the floor, climbing the walls, and cleaning the waterline where oils and scum collect — all without touching your pump or filter. Drop it in, press start, and walk away. A couple of hours later the pool is swim-ready.
We run these robots in real inground pools across every surface, so the models below aren't guesses. Whether you have a gunite or concrete, vinyl-liner, or fiberglass pool, there's a cleaner tuned for it. New to pool robots? Start with our buying guide, or see the best inground pool robots our experts recommend this year.
MultiMedia
Waterline Cleaning
Leaf Bag
Full Filter Indicator
The Flagship Robot for Small Inground & Above-Ground Pools.
Above Ground & In-Ground
SmartNav 2.0
MaxBin
Efficient
The most advanced pool robot ever. Clean from anywhere
Gyroscope
Waterline Cleaning
NanoFilters
myDolphin Plus App
Waterline Cleaning
UV-C Disinfection
UltraBin
Wi-Fi + Bluetooth App
Groundbreaking tech allows Quantum to clean deeper than ever before
Waterline Cleaning
Oversized MaxBin
NanoFilters
myDolphin Plus App
Value-packed, the Cayman includes more for less
MaxBin
Wall Climbing
Weekly Timer
Efficient
Waterline Cleaning
UltraBin
UltraFilters
Wi-Fi + Bluetooth App
Commercial
Smart Navigation
Efficient
Commercial
Smart Navigation
Efficient
Commercial
Smart Navigation
Efficient
Commercial
Smart Navigation
Efficient
Designed for use in fountains, wading pools, and reflection pools, with the capability to function in water as shallow as 8 inches
Commercial
Smart Navigation
Efficient
Wall Climbing
Efficient
Filter Bag
CleverClean
Filter Basket
Waterline Cleaning
Weekly Timer
myDolphin Plus App
Filter Basket
Waterline Cleaning
Weekly Timer
Efficient
Filter Basket
Waterline Cleaning
Weekly Timer
myDolphin Plus App
Commercial
Smart Navigation
Efficient
What actually matters when you pick a robot for an inground pool — and what you can ignore.
Maintaining an inground pool is real work. A robotic pool cleaner takes over the vacuuming and scrubbing, and because it carries its own pump and filter it acts as a second filtration system for your water. The first thing to compare is suction and coverage: for an inground pool you want a robot that cleans the floor, climbs the walls and scrubs the waterline, where oils and scum build up.
Next, look at the filter. Pleated NanoFilters™ have far more surface area than a mesh basket, so they trap silt, pollen and algae spores down to the micron level instead of blowing them back into the pool. The Dolphin ProLine™ includes them, and the Max-Series™ offers them as an upgrade.
An inground pool robot is a self-contained electric cleaner designed for the size and depth of inground swimming pools. It navigates on its own, using brushes, an onboard filter and its own suction to remove dirt, debris and algae from the floor, walls and waterline — no hoses, booster pump or plumbing required.
Our pool experts test every model in real water and publish the results in our guide to the best inground robotic pool cleaners. From the Dolphin Premier to the Dolphin Sigma, every top model and brand is covered, with the trade-offs spelled out.
Tell us your pool's size, surface and the debris you battle. Reach the team through our contact page, live chat, or by calling (888)-615-5728, and we'll point you to the right robot — not the priciest one.
Whether you have a vinyl, gunite, fiberglass or tile pool, there is a robot below that fits it. Every model we carry works on all inground surfaces — these are the ones our experts reach for first. Need a hand? Message a pool expert or call (888)-615-5728.
The Premier tops our list for medium and large inground pools. Its 55 ft anti-tangle swivel cable reaches every corner, and it is the only Dolphin with Multi-Media™ filtration: an oversized leaf bag for heavy debris plus NanoFilters™ for the fine stuff. Waterline scrubbing, commercial-grade ProLine™ motors and a 3-year warranty make it the most complete robot we sell.
Shop Dolphin PremierGyroscope-guided SmartNav 3.0™, triple commercial-grade motors and quad brushes make the Sigma the strongest, most precise cleaner in the lineup. It includes NanoFilters™, Wi-Fi app control and a 3-year warranty. If your pool is big, oddly shaped or fights algae every summer, this is the one.
Shop Dolphin Sigma
The Cayman pairs HyperBrush™ scrubbing with the top-loading MaxBin™, so emptying it takes seconds. It climbs walls, runs on a built-in weekly timer and fits pools up to 33 ft — the sweet spot for most backyards in 2026.
Shop Dolphin Cayman
The Quantum combines a powerful HyperBrush™ with the XXL MaxBin™ and NanoFilters™, so it handles heavy debris and fine silt in the same cycle. Strong suction, waterline cleaning and a weekly timer make it a top pick for pools that collect a lot of debris.
Shop Dolphin QuantumEvery robot above is safe on all four surfaces. These pages narrow the list to the models whose brushes, tracks and suction suit each one best.
The best inground robotic pool cleaner depends on your pool's size, surface, and debris type. Top picks for 2026 include the Dolphin Sigma and Dolphin Premier, both featuring commercial-grade motors, NanoFilters, and 3-year warranties. Browse our full selection of best inground robotic pool cleaners to find the right match for your pool.
Robotic pool cleaners operate independently from your pool's pump and filtration system. They use built-in motors, brushes, and onboard filters to scrub and vacuum the pool floor, walls, and waterline. Advanced models use smart navigation algorithms to map your pool and ensure complete coverage in a single cleaning cycle.
Yes, most inground robotic pool cleaners are designed to climb walls and many can scrub the waterline where oils and scum accumulate. Models like the Dolphin Sigma and Dolphin Quantum provide full floor, wall, and waterline cleaning coverage for a thoroughly clean pool.
Inground robotic pool cleaners are compatible with virtually all pool surfaces, including gunite/concrete, vinyl liner, fiberglass, and tile. Different brush types are optimized for each surface to ensure effective cleaning without causing damage.
Inground robotic pool cleaners typically range from $500 to $2,000+ depending on features, filtration type, and cleaning coverage. Entry-level models handle floor-only cleaning, while premium robots offer wall climbing, waterline scrubbing, and smart navigation. Check out our deals and specials for savings on top-rated models.
Most inground robotic pool cleaners complete a full cleaning cycle in 2 to 3 hours, depending on the pool's size and shape. Some models offer quick-clean modes that finish in as little as 1 hour for light maintenance between deep cleans.
Maintenance is minimal compared to other pool cleaning systems. After each cycle, simply remove and rinse the filter cartridge or bag to clear collected debris. It's also recommended to rinse the robot with fresh water, store it out of direct sunlight, and inspect brushes periodically for wear. Proper care extends the robot's lifespan significantly.
Still have questions? Browse our pool robot troubleshooting guides, contact our pool experts, or call (888) 615-5728
Not sure which features matter? Tap one to see only the robots that have it.
Scrubs the tide line where oils and scum collect — the dirtiest part of the pool. A must for inground pools.
Partial wall cleaning. These models don't reach the waterline, but they clean far more than floor-only robots.
Program the power supply once and the robot cleans on schedule — every day, every other day, or every third day.
The cable spins freely as the robot turns, so it covers the whole pool without knotting up.
A single top-loading basket that's 50-100% larger than standard cartridges and empties in seconds.
Pleated ultra-fine filters that trap silt, pollen and algae a standard mesh filter lets through.
Premier's exclusive filter set: fine filter, NanoFilter™, oversized leaf bag and a disposable bag option.
Start, steer, schedule and read cleaning stats from your phone over Wi-Fi or Bluetooth.
Gyroscopic sensors map the pool so the robot cleans methodically instead of bouncing at random.
Real-time filter tracking that tells you when the onboard filtration needs a rinse.
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