Quick verdict
The natural upgrade from a Nautilus CC Plus: you add waterline cleaning, app control, and a bigger basket without leaving the Dolphin comfort zone.
Ideal for
- In-ground pools up to 50 ft
- Owners who want waterline cleaning plus app scheduling
- Debris loads that fill smaller baskets fast
Not ideal for
- Cordless seekers
- Heavy-leaf pools (no leaf bag like the Premier)
- Budget buyers
The full picture
The Explorer E50 is Maytronics' step up from the Nautilus CC line: floor, wall, and waterline coverage for in-ground pools up to 50 feet, a 2-hour cycle, MyDolphin Plus app control with a weekly timer, an anti-tangle swivel, and an extra-large top-load fine-filtration basket that means fewer mid-clean empties. It's the Dolphin to compare when you want waterline scrubbing and app scheduling but don't need the Premier's swappable leaf bag or the Sigma's ultra-fine filtration.
Dolphin Explorer E50 at a glance
- Cleaning coverage
- Floor + walls + waterline
- Pool type
- In-ground
- Max pool size (ft)
- 50
- Cordless
- No
- Wall climbing
- Yes
- Waterline cleaning
- Yes
- Filtration
- Extra-large top-load fine basket
- App control
- Yes
- Weekly timer
- Yes
Source: Compiled from Maytronics product documentation, the published manual, warranty terms, and aggregated verified-owner feedback.
This is a research-based review — our analysis draws on manufacturer specifications, manuals, warranty terms, and verified owner feedback rather than our own hands-on testing, and we note where a detail couldn't be confirmed. How we review
The in-depth review
The Explorer E50 is the natural upgrade path from a Nautilus CC Plus. It keeps the proven Dolphin platform and adds the three things owners most often wish the Nautilus had: waterline cleaning, app scheduling, and a bigger filter basket.

What the upgrade buys you
On top of the familiar floor-and-wall cleaning, the E50 scrubs the waterline and adds MyDolphin Plus app control with a weekly timer. The extra-large top-load basket means fewer mid-clean empties on a debris-heavy pool, and it covers pools up to 50 feet. The anti-tangle swivel and Maytronics service network carry over.
The trade-offs
It's corded, so cable management stays. Unlike the Premier, there's no swappable oversized leaf bag, so a very leafy pool is still better served by that model. And it sits at premium pricing.

Performance breakdown
Research-based editorial judgments from specs, warranty terms, and verified owner feedback — not lab measurements. How we score
Pros and cons
What works
- Waterline cleaning plus app scheduling
- Extra-large filter basket
- MyDolphin Plus with weekly timer
- Anti-tangle swivel and Maytronics service
What doesn't
- Corded — cable management remains
- No swappable leaf bag
- Premium price
Best alternatives to Dolphin Explorer E50

Aiper
Aiper Scuba V3
Best smart mid-premium cordless
The smart mid-premium Aiper: AI debris detection and camera-style route planning for underwater cleaning, without flagship pricing.

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Dolphin Sigma
Best premium corded with app
Premium corded Dolphin with app control and ultra-fine filtration — for owners who want top-tier cleaning without managing a battery.

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Dolphin Nautilus CC Plus Wi-Fi
Best proven midrange Dolphin
The proven Nautilus CC Plus with app control added: the popular midrange corded Dolphin, now with MyDolphin Plus scheduling.
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Nautilus CC Supreme
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Dolphin Nautilus CC Supreme
Best premium Nautilus
The premium Nautilus: adds waterline cleaning and ultra-fine filtration to the popular CC platform, with selectable cycles.
Frequently asked questions
Is the Dolphin Explorer E50 cordless or corded?
The Dolphin Explorer E50 is corded — it runs on continuous mains power through a floating cable, so there is no battery to recharge between cycles.
What does the Dolphin Explorer E50 clean?
The Dolphin Explorer E50 is rated to clean the floor, walls and waterline. That includes the waterline, where sunscreen and body oils build into a greasy ring. It is an underwater cleaner, so it does not skim floating debris off the surface.
What size pool is the Dolphin Explorer E50 designed for?
It is rated for pools up to 50 feet. On a longer pool it covers less ground per cycle and can miss spots, so size up if your pool runs past that.
Does the Dolphin Explorer E50 have app control?
Yes — the Dolphin Explorer E50 pairs with a mobile app, and it supports scheduling.
What filtration does the Dolphin Explorer E50 use?
It filters debris through an extra-large top-load fine basket. Rinse it after each cycle so suction and pickup stay strong.
What warranty does the Dolphin Explorer E50 come with?
It comes with a 3-year limited manufacturer warranty (confirm current terms at purchase).
