Dolphin Liberty 300
#38 in CordlessFull review
A cordless waterline-scrubbing robot for small and mid-size pools, for owners who want easy retrieval without an app.
Maytronics $1,249 Leslie's $1,249 ePoolSupply $1,199$1,199
33 ftTo waterline2 yr
3.3/5
A floor-only robot for large flat above-ground pools that want daily runs. Wall cleaning still means a brush.
- 1,350 sq ftPool size
- Floor onlyCleans
- 2 h 15 minRun time
Check price at Amazon$199.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Bigger battery than most above-ground robots, so it covers about 1,350 sq ft
- Daily timer for a week of hands-off cleaning
- Parks at the wall for pickup
Cons
- Floor only
- No app, warranty or charge-time details published
- Few owner ratings so far
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 1,350 sq ft (125 m²) |
| Pool types | Above-ground |
| Cleaning | |
| Cleans | Floor only |
| Surface skimming | No |
| Filter | 185 µm filter basket |
| Power | |
| Power | Cordless (battery) |
| Battery | 73.3 Wh, 6,600 mAh |
| Run time | Up to 2 h 15 min |
| Navigation & app | |
| App | No |
| Scheduling | Yes |
| Retrieval | Parks at the pool wall when the battery runs low or the cycle ends |
| Build | |
| Weight | 12.1 lb (5.5 kg) |
Alternatives in this type
Polaris Freedom SC
#39 in CordlessFull review
An entry cordless Polaris for in-ground pools that only need floor and wall cleaning.
ePoolSupply $799$799
36 ftFloor + walls2 yr
Winny A1
#41 in CordlessFull review
A WYBOT A1-style floor cleaner for small above-ground pools. Buy whichever of the two is cheaper.
Amazon $169.99$169.99
1,100 sq ftFloor only
Compare
Compare the Winny S1103K with any other robotic pool cleaner →
More from Winny: every Winny product ranked.