Dolphin Wave 140
$7879
2 years manufacturer warranty
Dolphin Wave 140 vs Niya Sonar 20
A side-by-side comparison of the Dolphin Wave 140 and Niya Sonar 20 — price, filtration, cleaning coverage, brushes and warranty — to help you pick the right Dolphin robotic pool cleaner.
Niya Sonar 20
MSRP $199
1 year manufacturer warranty
| Feature | Wave 140 | Niya Sonar 20 |
|---|---|---|
| Overview | ||
| Price | $7879 | MSRP $199 |
| Lineup | Wave™ Commercial | Niya (cordless) |
| Best for | The largest commercial pools | Value cordless cleaner |
| Pool size | Up to 127 ft | Above-ground |
| Cleaning coverage | Floor | Floor only |
| Cleaning cycle | 4 or 6 hours | Not published |
| Suction | 9,000 GPH | Not published |
| Scrubbing brushes | 6 | Not published |
| Filtration | Top-load fine cartridge with full indicator | Coarse filter basket |
| Standout features | ||
| Waterline cleaning | No | No |
| 3-year warranty | No | No |
| NanoFilters™ included | No | No |
| MultiMedia™ filtration | No | No |
| Media-Alert™ | No | No |
| Oversized leaf bag | No | No |
| MaxBin™ filtration | No | No |
| HyperBrush™ scrubbing | No | No |
| App control | No | No |
| Anti-tangle swivel | No | No |
| Corded power | Included | No |
| Navigation & ownership | ||
| Navigation | Smart Navigation with Dual Drive | Sonar-guided navigation |
| Weekly scheduling | No weekly timer | No weekly timer |
| App control | No app control | No app control |
| Cable | 140 ft, auto-release system (no swivel) | None (cordless) |
| What is included |
|
|
| Warranty | 2 years | 1 year |
Dolphin Wave 140 vs Niya Sonar 20: how they compare
The Dolphin Wave 140 is part of the Wave™ Commercial lineup — the flagship commercial Wave with Dual Drive mobility for pools up to 127 ft. It cleans pools up to 127 ft with floor coverage and Top-load fine cartridge with full indicator filtration, backed by a 2-year warranty.
The Niya Sonar 20 is part of the Niya (cordless) lineup — a value cordless cleaner from Maytronics' Niya brand with a 1-year warranty. It handles above-ground pools with floor only coverage and Coarse filter basket filtration, backed by a 1-year warranty.
Our verdict: the Dolphin Wave 140 wins
Between these two, the Dolphin Wave 140 is the better buy — the flagship commercial Wave with Dual Drive mobility for pools up to 127 ft. It cleans with floor coverage and Top-load fine cartridge with full indicator filtration, backed by a 2-year warranty.
Our top recommendation: neither of these is in our two best lineups. For the best clean in this price range, step up to the Dolphin Quantum Pro from our ProLine™ — our top pick, highlighted at the top of this comparison.
Not sure yet? We're here to help
Every Dolphin Max-Series™ and ProLine™ robotic pool cleaner ships free and is backed by a full manufacturer warranty — explore our top-recommended robots and find the right fit for your pool.
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