Dolphin T25 versus Dolphin Sigma
Compare Features, Filters, and Warranty
Sigma or T25. Which wins?
Diving into the Sigma vs T25, our pool experts distinguish the key features you'll want to look for when choosing a pool robot. That way, you can decide between the Dolphin T25 or Dolphin Sigma.
Compare essential features...
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|---|---|---|
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T25 | Sigma |
| Cleans Waterline | No |
Yes |
| NanoFiltration | No |
Yes |
| MultiMedia | No |
No |
Leaf Bag | No |
No |
Dual Stabilizer | No |
Yes | Gyroscope | No |
Yes | 3 Year Warranty | No |
Yes |
| No Restocking Fee | No |
Yes |
| 30 Day Trial | No |
Yes |
| Shop Now | Buy | Buy |
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Compare Dolphin T25 vs Dolphin Sigma
| Features | T25 | Sigma |
|---|---|---|
| Standard Filter |  |
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| NanoFilters™ |  |
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| Wall Climbing | |
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| Waterline Cleaning | |
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| Programmable Timer | |
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| Gyroscope | |
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| Dual Stabilizer | |
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| Anti-Tangle Swivel | |
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| 3 Year Warranty | |
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Compare Features
NanoFilters™
Often overlooked, having a NanoFilter™ can be the most important part of a pool robot. Without it, small microscopic particulate will pass right through the standard filters found on most robots. These highly advanced filters capture more debris than any other filter on the market, leaving you with a cleaner, happier, and healthier pool.
The Dolphin T25 does not include NanoFilters™
The Dolphin Sigma includes NanoFilters™
Standard Fine Filter
These standard filters help capture larger items such as small leaves and other debris, while maximizing flow rate. However, if your pool struggles with cloudy pool water, small algae, or sand. You many want to consider a unit with NanoFilters™.
The Dolphin T25 includes a standard filter.
The Dolphin Sigma includes a standard filter.
Programmable Weekly Timer
An automatic pool cleaner should be automatic, right? With a programmable weekly timer, you can set the robot to clean at different intervals. So your pool robot can clean for you everyday of the week while you sit back and relax - without the need to manually turn it on and off everyday.
The Dolphin T25 includes a weekly timer.
The Dolphin Sigma includes a weekly timer.
Dual Stabilizer
This essential piece to waterline cleaning allows the unit to cling to the walls of your pool - allowing a more precise and deeper clean at the waterline. Units with dual stabilizers have increased performance and agility while cleaning. It also doubles as an easy handle to pickup your robot from.
The Dolphin T25 does not include a dual stabilizer.
The Dolphin Sigma includes a dual stabilizer.
Anti-Tangle Cable Swivel
Say goodbye to pesky tangled cords. An anti-tangle swivel allows the robot to move 360 degrees around your pool without the cord getting tangled. So you can sit back and enjoy while your pool robot vacuums and cleans for you.
The Dolphin T25 does not include an anti-tangle swivel.
The Dolphin Sigma includes an anti-tangle swivel.
3 Year Warranty
A robot is only as important as its warranty. By purchasing through an Authorized Maytronics Dealer such as Poolbots, you'll get the full warranty on all robotic pool cleaners available on Poolbots.com. Try any robotic pool cleaner risk-free for 30 days in your pool without any restocking fees.
The Dolphin T25 includes a 2 year warranty.
The Dolphin Sigma includes a 3 year warranty.
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Compare Specifications
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| Part Number | 99996137-WINF | 99991036-SPLI |
|---|---|---|
| ASIN | B07CZ1XVZX | |
| Waterline Cleaning | No | Yes |
| Multi-Media® | No | No |
| # of Filters Included: | 1 | 2 |
| Filter Cleaning | Top Access | Ultra-fine NanoFilters and Standard Filter Cartridge sets |
| Cleaning Coverage | Floor and Walls | Floor, Walls, Waterline |
| Cleaning Cycle | 2 hours | 2.5 hours |
| Number of Brushes | 1 | 4 |
| Cable Length | 50 ft | 60 ft |
| Anti-Tangle Swivel | No | Yes |
| Pool Types | In Ground | In Ground |
| Maximum Pool Size | 33 ft | 50 ft |
| Pool Shape | Rectangle, Oval, or Freeform | Rectangle, Oval, or Freeform |
| Obstacles | Steps, Ladder, Drain Cover, Ledges, Pop-Ups | Steps, Ladder, Drain Cover, Ledges, Pop-Ups |
| Surface | Gunite, Fiberglass, Vinyl, Liner | Concrete, Plaster, Gunite, Pebble, Tile, Vinyl Liner, Fiberglass |
| Media-Alert® | No | No |
| Automated Weekly Timer | Yes | Yes |
| Remote operation | No | Yes - Through App |
| Restocking Fee | No |
No |
| Warranty | 2 Years | 3 Years |
| Read Reviews | Dolphin T25 Review | Dolphin Sigma Review |
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Read Our Reviews
Learn more about the Dolphin T25 and Dolphin Sigma in our reviews. 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 Sigma Review, Dolphin T25 Review, or browser other top robotic pool cleaner reviews.
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WHAT'S NEXT?
Try in your own pool for 30 days.
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