Dolphin Nautilus Pool Up
#21 in CordedFull review
A budget floor-and-wall robot for small pools, if you can live with a bottom-access filter bag.
Leslie's $494.10$494.10
The Dolphin Nautilus Pool Up is the better robotic pool cleaner overall, rated 3.4 to 3.2. The Dolphin Nautilus Pool Up leads on value. The Dolphin Nautilus Pool Up costs $104.90 less ($494.10 vs $599).
Polaris ERA 710
#26 in CordedFull review
A budget corded Polaris for smaller in-ground pools.
Walmart $599$599
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 Nautilus Pool Up for value ($494 vs $599).
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 Nautilus Pool Up | Polaris ERA 710 |
|---|---|---|
| Overall rating | 3.4/5 | 3.2/5 |
| Value 25% | 70 $494 | 62 $599 |
| Cleaning 25% | 60 Floor and walls | 60 Floor and walls |
| Navigation 15% | 50 navigation not published (neutral score used) | 50 navigation not published (neutral score used) |
| Warranty 15% | 50 2-year warranty | 50 warranty not published (neutral score used) |
| Pool size 10% | 17 pools up to 30 ft long (about 450 sq ft) | 39 pools up to 36 ft long (about 650 sq ft) |
| Features 10% | 50 too few features published (neutral score used) | 0 0 of 4; no app control, scheduling, swivel cable, caddy |
Specifications
| Dolphin Nautilus Pool Up | Polaris ERA 710 | |
|---|---|---|
| Pool | ||
| Pool size (rated) | Up to 30 ft long | Up to 36 ft long |
| Pool types | In-ground and above-ground | In-ground |
| Cleaning | ||
| Cleans | Floor and walls | Floor and walls |
| Surface skimming | No | No |
| Filter | Filter bag, bottom access | 3 L canister |
| Filter capacity | - | 3 L |
| Water flow | 4,500 gal/h | - |
| Power | ||
| Power | Corded | Corded, 50 ft cable |
| Run time | Longest cycle 2 h | Longest cycle 2 h 30 min |
| Swivel cable | - | No |
| Navigation & app | ||
| App | - | No |
| Scheduling | - | No |
| Retrieval | - | Tap & Lift: tap with a pole and it climbs to the waterline |
| Caddy included | - | No |
| Build | ||
| Warranty | 2 years | - |