Dolphin S400
#12 in CordedFull review
A fully equipped dealer-line robot for large pools, though the Explorer E50 offers similar features for less.
Leslie's $1,784$1,784
The Dolphin S400 and the Hayward R130 are evenly matched, rated 3.6 and 3.6. The Dolphin S400 leads on features. The Hayward R130 wins on value. The Hayward R130 costs $532.05 less ($1,251.95 vs $1,784).
Hayward R130
#13 in CordedFull review
Hayward’s newer, lighter robot for in-ground or above-ground pools up to 50 ft, with a weekly timer.
ePoolSupply $1,251.95$1,251.95
Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Dolphin S400 for features (4 of 4 vs 2 of 4; no app control, caddy).
- Choose the Hayward R130 for value ($1,252 vs $1,784).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every corded robotic pool cleaner; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dolphin S400 | Hayward R130 |
|---|---|---|
| Overall rating | 3.6/5 | 3.6/5 |
| Value 25% | 15 $1,784 | 30 $1,252 |
| Cleaning 25% | 85 Floor, walls and waterline | 85 Floor, walls and waterline |
| Navigation 15% | 50 navigation not published (neutral score used) | 50 Smart navigation |
| Warranty 15% | 50 2-year warranty | 50 2-year warranty |
| Pool size 10% | 100 pools up to 50 ft long (about 1,250 sq ft) | 100 pools up to 50 ft long (about 1,250 sq ft) |
| Features 10% | 100 4 of 4 | 50 2 of 4; no app control, caddy |
Specifications
| Dolphin S400 | Hayward R130 | |
|---|---|---|
| Pool | ||
| Pool size (rated) | Up to 50 ft long | Up to 50 ft long |
| Pool types | In-ground and above-ground | In-ground and above-ground |
| Surfaces | - | Any pool surface |
| Cleaning | ||
| Cleans | Floor, walls and waterline | Floor, walls and waterline |
| Surface skimming | No | No |
| Filter | Multi-Layer, top access | Extra-large top-load basket with fine and ultra-fine panels |
| Water flow | 4,000 gal/h | - |
| Power | ||
| Power | Corded | Corded |
| Run time | Longest cycle 2 h 30 min | - |
| Swivel cable | Yes | Yes |
| Navigation & app | ||
| Navigation | - | Smart navigation |
| App | Yes | No |
| Scheduling | Yes | Yes |
| Caddy included | Yes | No |
| Build | ||
| Weight | 18.5 lb (8.4 kg) | 16.5 lb (7.5 kg) |
| Warranty | 2 years | 2 years |