Dolphin Premier
#9 in CordedFull review
For leafy in-ground pools up to 50 ft where filter capacity matters more than app control.
Pool Express $1,999$1,999
3.6/5
A Wi-Fi floor-and-wall robot for pools up to 40 ft, for owners who want scheduling without paying for waterline scrubbing.
- 40 ftPool size
- Floor + wallsCleans
- Smart scanningNavigation
- 2.5 yearsWarranty
Check price at Walmart$839
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Wi-Fi app with weekly timer
- Swivel cable
- Strong 4,500 gph pump
- Warranty of 2.5 years
Cons
- Does not scrub the waterline
- Over 20 lb
- Only sold by third-party sellers in our check
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 and above-ground |
| Cleaning | |
| Cleans | Floor and walls |
| Surface skimming | No |
| Filter | 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 | |
| Navigation | Smart scanning |
| App | Yes |
| Connectivity | Wi-Fi |
| Scheduling | Yes |
| Build | |
| Weight | 20.8 lb (9.5 kg) |
| Warranty | 2.5 years |
Alternatives in this type
Polaris VRX iQ+
#10 in CordedFull review
Polaris’s top corded robot, for big in-ground pools whose owners want app modes and an easy lift-out.
Leslie's $1,499 Walmart $1,499$1,499
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
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