Polaris 9450 Sport
#17 in CordedFull review
A capable older 4WD Polaris for in-ground pools, but buy only from a trusted seller.
Walmart $1,149.96$1,149.96
The Polaris 9450 Sport is the better robotic pool cleaner overall, rated 3.5 to 3.4. The Dolphin Proteus DX4 Plus wins on value. The Dolphin Proteus DX4 Plus costs $200.96 less ($949 vs $1,149.96).
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
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 Proteus DX4 Plus for value ($949 vs $1,150).
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 | Polaris 9450 Sport | Dolphin Proteus DX4 Plus |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Value 25% | 34 $1,150 | 42 $949 |
| Cleaning 25% | 85 Floor, walls and waterline | 85 Floor, walls and waterline |
| Navigation 15% | 50 Sensor-based | 50 navigation not published (neutral score used) |
| Warranty 15% | 50 2-year warranty | 50 2-year warranty |
| Pool size 10% | 50 pool size not published (neutral score used) | 24 pools up to 32 ft long (about 510 sq ft) |
| Features 10% | 75 3 of 4; no app control | 50 too few features published (neutral score used) |
Specifications
| Polaris 9450 Sport | Dolphin Proteus DX4 Plus | |
|---|---|---|
| Pool | ||
| Pool size (rated) | - | Up to 32 ft long |
| Pool types | In-ground | In-ground |
| Surfaces | All surfaces | All surfaces |
| Cleaning | ||
| Cleans | Floor, walls and waterline | Floor, walls and waterline |
| Surface skimming | No | No |
| Filter | 5 L canister | Top-load basket, fine filter |
| Filter capacity | 5 L | - |
| Water flow | - | 4,000 gal/h |
| Power | ||
| Power | Corded, 60 ft cable | Corded, 40 ft cable |
| Run time | Longest cycle 2 h 30 min | Longest cycle 2 h 30 min |
| Swivel cable | Yes | - |
| Navigation & app | ||
| Navigation | Sensor-based | - |
| App | No | - |
| Scheduling | Yes | - |
| Retrieval | Easy Lift System | - |
| Caddy included | Yes | - |
| Build | ||
| Weight | 21 lb (9.5 kg) | 16.5 lb (7.5 kg) |
| Warranty | 2 years | 2 years |