Dolphin Proteus DX5i
#10 in CordedFull review
A Wi-Fi full-coverage robot for large pools, essentially Leslie’s counterpart to the Nautilus CC Pro with a longer warranty.
Leslie's $1,199$1,199
The Dolphin Proteus DX5i is the better robotic pool cleaner overall, rated 3.7 to 3.2. The Dolphin Proteus DX5i leads on features and cleaning. The Polaris ERA 710 wins on value. The Polaris ERA 710 costs $600 less ($599 vs $1,199).
Polaris ERA 710
#25 in CordedFull review
A budget corded Polaris for smaller in-ground pools.
Walmart $599$599
Prices were last checked October 24, 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 DX5i for features (3 of 4; no caddy vs 0 of 4; no app control, scheduling, swivel cable, caddy) and cleaning (Floor, walls and waterline vs Floor and walls).
- Choose the Polaris ERA 710 for value ($599 vs $1,199).
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 Proteus DX5i | Polaris ERA 710 |
|---|---|---|
| Overall rating | 3.7/5 | 3.2/5 |
| Value 25% | 32 $1,199 | 62 $599 |
| Cleaning 25% | 85 Floor, walls and waterline | 60 Floor and walls |
| Navigation 15% | 50 Smart scanning | 50 navigation not published (neutral score used) |
| 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) | 39 pools up to 36 ft long (about 650 sq ft) |
| Features 10% | 75 3 of 4; no caddy | 0 0 of 4; no app control, scheduling, swivel cable, caddy |
Specifications
| Dolphin Proteus DX5i | Polaris ERA 710 | |
|---|---|---|
| Pool | ||
| Pool size (rated) | Up to 50 ft long | Up to 36 ft long |
| Pool types | In-ground and above-ground | In-ground |
| Cleaning | ||
| Cleans | Floor, walls and waterline | Floor and walls |
| Surface skimming | No | No |
| Filter | Fine Filter Kit, top access | 3 L canister |
| Filter capacity | - | 3 L |
| Water flow | 4,000 gal/h | - |
| Power | ||
| Power | Corded, 59 ft cable | Corded, 50 ft cable |
| Run time | Longest cycle 2 h | Longest cycle 2 h 30 min |
| Swivel cable | Yes | No |
| Navigation & app | ||
| Navigation | Smart scanning | - |
| App | Yes | No |
| Connectivity | Wi-Fi | - |
| Scheduling | Yes | No |
| Retrieval | - | Tap & Lift: tap with a pole and it climbs to the waterline |
| Caddy included | No | No |
| Build | ||
| Weight | 17.4 lb (7.9 kg) | - |
| Warranty | 2 years | 2 years |
| Released | 2022-05 | - |