The catch
Dolphin Nautilus CC Plus with Wi-Fi
Waterline scrubbing falls outside its stated coverage.
Side by side
Dolphin Nautilus CC Plus Wi-Fi vs Nautilus CC Supreme Compared: Supreme scrubs the waterline and weighs about 3.8 lb more to lift
Quick verdict
If your pool is up to 40 feet and floor and wall cleaning cover your needs, Nautilus CC Plus Wi-Fi is the one to get. CC Supreme is the choice for documented waterline scrubbing or an in-ground pool of up to 50 feet. It also adds cycle choices, but it weighs about 3.8 lb more out of the water.
Before you buy
Why, and what it costs you
On the stated limit, a 45-foot pool points to Supreme
Supreme's 50-foot range covers it, while Plus Wi-Fi's 40-foot rating falls short. Cable length is no stand-in for the maker's pool limit.
Where this comes from
40 < 45 ≤ 50. The extra ten feet works out to 25% above the Plus pool-length limit.
The catch
Dolphin Nautilus CC Supreme
It is heavier to carry at 24.63 lb, and that is before counting retained water.
Dolphin Nautilus CC Plus with Wi-Fi
- Why pick it
- Handle floor and wall cleaning in an in-ground pool of up to 40 feet
- Carry the lighter robot when you pull it out
- The catch
- Waterline scrubbing falls outside its stated coverage.
Dolphin Nautilus CC Supreme
- Why pick it
- Get waterline scrubbing that is documented
- Reach pools of up to 50 feet and pick from the listed cycle durations
- The catch
- It is heavier to carry at 24.63 lb, and that is before counting retained water.
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What this page compares
Nautilus CC Plus Wi-Fi and CC Supreme, both corded cleaners with app control, are compared on pool length, waterline coverage, cycle options and retrieval weight.
If your pool is up to 40 feet and floor and wall cleaning cover your needs, Nautilus CC Plus Wi-Fi is the one to get. CC Supreme is the choice for documented waterline scrubbing or an in-ground pool of up to 50 feet. It also adds cycle choices, but it weighs about 3.8 lb more out of the water.
Which one fits
Pick the situations that sound like you
The length of my in-ground pool is 45 feet
Supreme's stated maximum alone reaches 45 feet.
- Dolphin Nautilus CC Plus with Wi-Fi
- Not suitable
- Dolphin Nautilus CC Supreme
- Good
Waterline scrubbing has to be documented for me
Plus climbs walls, but no waterline-scrub specification comes with that.
- Dolphin Nautilus CC Plus with Wi-Fi
- Not suitable
- Dolphin Nautilus CC Supreme
- Good
Dry, the robot has to be under 22 lb
Plus is listed at 20.837 lb, Supreme at 24.63 lb.
- Dolphin Nautilus CC Plus with Wi-Fi
- Good
- Dolphin Nautilus CC Supreme
- Not suitable
I want weekly scheduling via an app
Weekly scheduling through MyDolphin Plus is listed for both.
- Dolphin Nautilus CC Plus with Wi-Fi
- Good
- Dolphin Nautilus CC Supreme
- Good
The robot has to run on a battery with no cable in the pool
Each of the selected models is a corded robot.
- Dolphin Nautilus CC Plus with Wi-Fi
- Not suitable
- Dolphin Nautilus CC Supreme
- Not suitable
In practice
Differences you will notice
On the stated limit, a 45-foot pool points to Supreme
Supreme's 50-foot range covers it, while Plus Wi-Fi's 40-foot rating falls short. Cable length is no stand-in for the maker's pool limit.
How we worked this out
40 < 45 ≤ 50. The extra ten feet works out to 25% above the Plus pool-length limit.
About 15% less dry weight to retrieve with Plus
If carrying the robot is already hard, that helps. Retrieval effort also depends on water drainage and where you stand.
How we worked this out
Difference = 3.793 lb. (24.63 - 20.837) / 24.63 × 100 = 15.4%. These are dry manufacturer weights only.
The default cycles differ by 30 minutes, which is not a cleaning-speed result
Half an hour longer is Supreme's default, but its selectable 1.5-hour cycle runs shorter. Since the programs differ, they cannot be read as speed tests of equal workloads.
How we worked this out
Cycle options and coverage differ in the manufacturer technical tables. 2.5 - 2 = 0.5 hours = 30 minutes.
Option A
Dolphin, 99996409-PCI
Nautilus CC Plus with Wi-Fi
This connected two-hour cleaner suits buyers who want proven wall cleaning and scheduling through an app.
- Best for
- Medium in-ground pools whose owners value app control and can do without waterline scrubbing
Facts we checked
- Maximum stated pool length: 40 ft
- Cleaning coverage: Floor and walls
- Cycle settings: 2-hour default in technical table
- Dry robot weight: 20.837 lb
Option B
Dolphin, 99991083-PC
Nautilus CC Supreme
The flagship Nautilus has three brushes, reaches the waterline and runs short or deep cycles you control from the app.
- Best for
- An in-ground 50-foot pool that needs full-line scrubbing and finer filtration
Facts we checked
- Maximum stated pool length: 50 ft
- Cleaning coverage: Floor, walls and waterline
- Cycle settings: 1.5 and 2.5 hours, 2.5-hour default
- Dry robot weight: 24.63 lb
Spec by spec
Where they really differ
| Spec | Dolphin Nautilus CC Plus with Wi-Fi | Dolphin Nautilus CC Supreme | In practice |
|---|---|---|---|
| Maximum stated pool length | 40 ft | 50 ft | Ten feet more of listed pool length is covered by Supreme. |
| Cleaning coverage | Floor and walls | Floor, walls and waterline | You cannot infer waterline scrubbing from wall climbing, since it is a separate task of its own. |
| Cycle settings | 2-hour default in technical table | 1.5 and 2.5 hours, 2.5-hour default | Being able to select a shorter cycle does not mean the same cleaning job ends earlier. |
| Dry robot weight | 20.837 lb | 24.63 lb | Before retrieval water is counted, Supreme is approximately 3.8 lb heavier. |
| Brush system | Two brushes, no active brush listed | Three brushes with active brushing | Brush count alone is no measure of debris pickup, though the hardware differs. |
| Delay setting | No delay feature listed | Delay feature listed | Weekly scheduling and MyDolphin Plus are on both. Supreme alone adds delayed start as a control. |
Trade-offs
What each pick costs you
With Dolphin Nautilus CC Plus with Wi-Fi
- Despite its swivel cable, the 40-foot pool limit rules out longer pools.
With Dolphin Nautilus CC Supreme
- Compared with the two-hour default in the Plus technical table, its 2.5-hour default cycle runs longer.
Change of plan
When the answer changes
My pool is longer than 40 but no longer than 50 feet
Go with Dolphin Nautilus CC Supreme. It falls within Supreme's stated length range.
Floor and wall coverage is all I need, along with a dry weight under 22 lb
Go with Dolphin Nautilus CC Plus with Wi-Fi. Both conditions are met by Plus Wi-Fi.
I need it to run cordless
Neither model fits. A power cable is used by both robots.
Decision guide
How to decide
Nautilus CC Plus Wi-Fi fits a pool up to 40 feet when floor and wall cleaning are enough. CC Supreme fits documented waterline scrubbing or an in-ground pool up to 50 feet. Supreme gives you cycle choices too, at about 3.8 lb more weight out of the water.
Treat pool length and waterline work as firm filters
By specification, a 45-foot pool or a firm waterline-scrubbing requirement makes Supreme the suitable one of the pair. If your pool is smaller and you will handle the waterline separately, Plus Wi-Fi covers the stated floor-and-wall role and spares you the heavier robot.
Work out retrieval before you order
Weight counts most at the moment you lift the machine out and carry it off. Published numbers are dry weights, and retained water can change how a lift feels. Follow the maker's retrieval instructions, let it drain and never use the cable as a carrying handle.
Do not read performance into cycle or pump numbers
Both models carry the same nominal suction rate from the makers, but their coverage and brush systems differ. That does not prove identical pickup, nor a Supreme advantage in every pool. Steps, unusual ledges, surface traction and debris types each need a compatibility check of their own.
What this page can’t tell you
- No pool, waterline, filtration or retrieval test was run. On cycle time, Plus Wi-Fi's marketing text contradicts its technical table, so the two-hour table value is called out explicitly.
By the numbers
What the data shows
What we found across the robot pool cleaners we compare, plus the checked facts behind each finding.
Show the facts and the math
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Dolphin Nautilus CC Plus with Wi-Fi |
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| Dolphin Nautilus CC Supreme |
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Ready to buy
See today’s price and what owners say
Open either model on Amazon for the current price, customer reviews and delivery options.
Dolphin Nautilus CC Plus with Wi-Fi
Handle floor and wall cleaning in an in-ground pool of up to 40 feet
See price & reviews on AmazonDolphin Nautilus CC Supreme
Get waterline scrubbing that is documented
See price & reviews on AmazonEach link opens in a new tab.
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