The catch
Dolphin Nautilus CC
Waterline cleaning is not documented
Side by side
WYBOT B1 is the choice when you need waterline routes and cable-free operation. Nautilus CC is the choice for a permitted pool within its 33-foot length limit, provided its corded floor-and-wall cycle fits your routine. The B1 area headline does not replace checking every pool dimension, and neither runtime figure proves better cleaning.
Before you buy
Waterline cleaning is not claimed for Nautilus CC, which covers the floor and walls. WYBOT B1 offers waterline routes, which makes it worth considering if that band is a routine manual job you want the robot to take over. Dolphin still makes sense for an owner who wants floor-and-wall cleaning, prefers corded power and accepts separate waterline maintenance. B1's 120-minute maximum battery runtime and Dolphin's two-hour program do not establish equal cleaning coverage or equal performance.
Where this comes from
Numerically both figures come to 120 minutes, yet one is a claim of maximum endurance and the other is a programmed cycle. Coverage and route design are specified separately.
The catch
Waterline cleaning is not documented
The catch
Not every dimensional limit is set by the area headline


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Dolphin Nautilus CC and WYBOT B1 are compared on waterline routes, pool dimensions, corded use, recharging and the limits of runtime claims.
First settle whether you need waterline scrubbing. Then check the pool dimensions, and do not treat area limits and length limits as the same thing.
Which one fits
B1 lists waterline routes, while CC covers floor and walls.
CC's rating stops at 33 feet. The area headline on B1 cannot by itself verify every pool dimension.
B1 is cordless and rechargeable, while CC is corded.
The technical table for CC says there is no timer. For B1, a qualifying weekly schedule was not established in this evidence.
In practice
Waterline cleaning is not claimed for Nautilus CC, which covers the floor and walls. WYBOT B1 offers waterline routes, which makes it worth considering if that band is a routine manual job you want the robot to take over. Dolphin still makes sense for an owner who wants floor-and-wall cleaning, prefers corded power and accepts separate waterline maintenance. B1's 120-minute maximum battery runtime and Dolphin's two-hour program do not establish equal cleaning coverage or equal performance.
Numerically both figures come to 120 minutes, yet one is a claim of maximum endurance and the other is a programmed cycle. Coverage and route design are specified separately.
Take a 38-by-12-foot rectangle. Its surface area is only 456 square feet, but its 38-foot length is beyond Nautilus CC's 33-foot rating, so Dolphin falls outside its published length limit in that example. B1's 1,150-square-foot headline is a reason to look closer, though it cannot verify every dimension, depth or wall shape by itself. Pick a robot only once its full pool requirements match yours. In a shorter pool that suits it, corded versus rechargeable operation can settle it.
Multiply 38 by 12 and you get 456 square feet. A surface-area total and a maximum pool length limit different aspects of a route, so label them separately.
When the recurring problem is very fine settled powder, B1's 180-micron filter specification matters more than its wall-climbing claim, although it does not show that smaller particles are fully retained. Nothing in this packet gives Nautilus CC a comparable numerical filter rating. Ask the maker to confirm the exact supplied media and supported alternatives before you choose either model for that job. Unsuitable filter media will not retain the target debris just because the route covers floor and walls.
CC's reviewed coverage facts give no matching numerical filtration rating, while B1 lists 180-micron media. No fine-silt retention test was found.

Dolphin, 99996113-USB
This compact corded Dolphin climbs walls and still stays light and uncomplicated.

WYBOT, 2026
This compact cordless step-up brings wall and waterline modes and app-based setup.
Spec by spec
| Spec | Dolphin Nautilus CC | WYBOT B1 | In practice |
|---|---|---|---|
| Pool-size basis | The current technical limit is pools up to 33 feet. | The published pool-area limit is 1,150 square feet. | Maximum length and surface area should each keep their own label. |
| Coverage | It cleans the floor and walls without a waterline-cleaning claim. | Selectable cleaning includes floor, wall and waterline routes. | B1 alone lists waterline routes. |
| Duration | The standard cycle lasts two hours. | Maximum battery runtime is 120 minutes. | A fixed cycle length cannot be read as the same thing as maximum battery runtime. |
| Power source | It is corded. | The cleaner is cordless and requires recharging. | Placing a corded unit and charging a battery are different jobs for the owner. |
Trade-offs
Change of plan
Go with Dolphin Nautilus CC. Go with a documented two-hour program in a permitted pool. Waterline cleaning is not documented.
Go with WYBOT B1. Take the power cable out of the pool. The area headline does not settle every dimensional limit.
Decision guide
WYBOT B1 fits waterline routes and cable-free operation. Nautilus CC fits a permitted pool within its 33-foot length limit and a corded floor-and-wall cycle. B1's area headline is not a substitute for checking all pool dimensions, and neither runtime figure proves better cleaning.
Nautilus CC covers the floor and walls and makes no claim to clean the waterline. WYBOT B1 offers waterline routes, so it is the relevant candidate if that band is a routine manual job you want the robot to take on. The Dolphin remains useful if you own a pool needing floor-and-wall cleaning, accept separate waterline maintenance and prefer corded power. The B1 has a 120-minute maximum battery runtime and the Dolphin has a two-hour program, but neither fact establishes equal cleaning coverage or equal performance. Both figures come to 120 minutes numerically, yet one is a maximum endurance claim and the other a programmed cycle. Coverage and route design are separate specifications.
Take a 38-by-12-foot rectangle. It has only 456 square feet of surface area, yet its 38-foot length is beyond Nautilus CC's 33-foot rating, which puts the Dolphin outside its published length limit in that example. The 1,150-square-foot headline makes B1 worth a look, but it does not by itself verify every dimension, depth or wall shape. Pick the robot only once its full pool requirements match yours. For a shorter suitable pool, the choice between a corded and a rechargeable workflow can settle it. 38 multiplied by 12 is 456 square feet. A surface-area total and a maximum pool length constrain different aspects of a route, so keep them labeled separately.
When very fine settled powder is what keeps coming back, the B1's 180-micron filter specification counts for more than its wall-climbing claim, though it does not prove that smaller particles are fully retained. This packet gives no comparable numerical filter rating for Nautilus CC. Before picking either one for that job, ask the maker to confirm the exact media supplied and any supported alternatives. No floor-and-wall route can make unsuitable filter media hold on to the target debris. The B1 lists 180-micron media, while the reviewed coverage facts for the CC offer no matching numerical filtration rating. No fine-silt retention test was found.
By the numbers
What we found across the robot pool cleaners we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Dolphin Nautilus CC |
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| WYBOT B1 |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Rely on a corded cycle for floor and walls
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Gain documented waterline routes
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