Dolphin Proteus DX4 Plus
#22 in CordedFull review
Leslie’s mid-range Dolphin for small in-ground pools that need steps and waterline cleaned.
Leslie's $949 Walmart $949$949
3.2/5
The cheapest Nautilus with Wi-Fi scheduling, for in-ground pool owners who want app control more than waterline scrubbing.
- 40 ftPool size
- Floor + wallsCleans
- 1 yearWarranty
Check price at Amazon$849Check price at Maytronics$849
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Start, schedule and steer it from the MyDolphin Plus app
- Swivel cable resists tangling
- Ultra-fine filter catches fine dirt and pollen
- Strong 4,500 gph pump for its price
Cons
- Does not scrub the waterline
- One-year warranty
- Over 20 lb, heavier than the basic CC models
- Maytronics’ own page disagrees on the maximum pool length (40 or 50 ft)
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Pool | |
|---|---|
| Pool size (rated) | Up to 40 ft long |
| Pool types | In-ground |
| Cleaning | |
| Cleans | Floor and walls |
| Surface skimming | No |
| Filter | Ultra-Fine Filter Kit, top access |
| Water flow | 4,500 gal/h |
| Power | |
| Power | Corded |
| Run time | Longest cycle 2 h |
| Swivel cable | Yes |
| Navigation & app | |
| App | Yes |
| Connectivity | Wi-Fi |
| Scheduling | Yes |
| Build | |
| Weight | 20.8 lb (9.5 kg) |
| Warranty | 1 year |
Alternatives in this type
Dolphin Nautilus Titan
#23 in CordedFull review
For large in-ground pools with heavy debris where pump power matters more than price.
Maytronics $1,599$1,599
Dolphin Echo
#25 in CordedFull review
A low-cost floor-and-wall robot for pools up to 33 ft.
Leslie's $524.30$524.30
Compare
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