Winner
Updated September 2026
Data from Amazon and official Aiper and Dolphin sites.
2026 verdict
Across the 2026 comparison, Aiper EcoSurfer S2 earns the nod over Dolphin Nautilus CC on the strength of price, rating, and cleaning performance.
It builds its lead on price, rating, and cleaning performance, then backs it up with a stronger showing on navigation and cordless. You should still consider Dolphin Nautilus CC if cleaning coverage matters more than raw overall balance. In practical terms, Aiper EcoSurfer S2 is the easier product to recommend.
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| Feature | Aiper EcoSurfer S2 | Dolphin Nautilus CC | Winner |
|---|---|---|---|
| Price | $359.99 | $699.00 | Aiper EcoSurfer S2 |
| Rating | 4.4 | 4.1 | Aiper EcoSurfer S2 |
| Cleaning Coverage | Water Surface Skimming | Floor Cleaning, Wall Cleaning | Dolphin Nautilus CC |
| Cleaning Performance | Edge & Corner Cleaning | None | Aiper EcoSurfer S2 |
| Navigation | Obstacle Avoidance | None | Aiper EcoSurfer S2 |
| Cordless | YES | NO | Aiper EcoSurfer S2 |
| Solar Charging | YES | NO | Aiper EcoSurfer S2 |
| Connectivity | 2.4 GHz WiFi | None | Aiper EcoSurfer S2 |
| Pool Compatibility | In-Ground Pools, Above-Ground Pools | In-Ground Pools, Above-Ground Pools | Tie |
Winner
10% OFF
$359.99
$399.99
- + Price: $359.99
- + Rating: 4.4
- + Cleaning Performance: Edge & Corner Cleaning
- - Cleaning Coverage: Water Surface Skimming vs Floor Cleaning, Wall Cleaning
$699.00
- + Cleaning Coverage: Floor Cleaning, Wall Cleaning
- - Price: $699.00 vs $359.99
- - Rating: 4.1 vs 4.4
Frequently Asked Questions
Which is better overall: Aiper EcoSurfer S2 or Dolphin Nautilus CC?
Aiper EcoSurfer S2 has the stronger overall profile in this comparison, especially for price, rating, and cleaning performance.
What is the biggest difference between Aiper EcoSurfer S2 and Dolphin Nautilus CC?
Price is one of the clearest differences: Aiper EcoSurfer S2 lists $359.99, while Dolphin Nautilus CC lists $699.00.
Which one looks better on price?
Aiper EcoSurfer S2 is listed at $359.99, while Dolphin Nautilus CC is listed at $699.00. Aiper EcoSurfer S2 (better spec).
Who should buy Aiper EcoSurfer S2?
Choose Aiper EcoSurfer S2 if your priority is price and rating and that matters more than cleaning coverage.
Who should buy Dolphin Nautilus CC?
Choose Dolphin Nautilus CC if your priority is cleaning coverage and that matters more than price.
Full comparison table
Compare all 10 Robotic Pool Cleaners side by side
You are looking at two of them. The full table lines up all Robotic Pool Cleaners in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 10 Robotic Pool Cleaners
- 51 specs compared
- 47 filters
