The catch
WYBOT B1
Larger C-series cleaners are rated for more than its 1,150-square-foot area.
Side by side
WYBOT B1 vs C2: For smaller debris, C2 includes a fine secondary filter
Quick verdict
For a smaller pool with ordinary debris, B1 is the fit. C2 brings far more rated area, a maximum runtime that is an hour longer and a 10-micron secondary filter for finer material.
Before you buy
Why, and what it costs you
Rated pool area almost doubles with C2
That limit is larger by about 87 percent.
Where this comes from
Subtract 1150 from 2152 to get 1002 square feet. Dividing 1002 by 1150 gives 87.1 percent.
The catch
WYBOT C2
Simple floor-only cordless models weigh less than its 17.6 pounds dry.
WYBOT B1
- Why pick it
- The B1 1,150-square-foot limit is enough for your pool.
- Most of the job is picking up ordinary debris.
- The catch
- Larger C-series cleaners are rated for more than its 1,150-square-foot area.
WYBOT C2
- Why pick it
- Your pool calls for the larger 2,152-square-foot rating.
- With fine silt around, the 10-micron secondary media earns its keep.
- The catch
- Simple floor-only cordless models weigh less than its 17.6 pounds dry.
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What this page compares
WYBOT B1 and C2 are compared on pool-area limits, runtime, filter media and cleaning modes, with a focus on how ordinary debris differs from fine silt.
Which one fits
Pick the situations that sound like you
Pool area over 1,150 square feet and at most 2,152 square feet
The area rating is larger on C2.
- WYBOT B1
- Not suitable
- WYBOT C2
- Better fit
The pool's main problem is fine silt
Finer secondary media is part of C2.
- WYBOT B1
- Good
- WYBOT C2
- Better fit
Maximum runtime has to be longer than two hours
Up to three hours is what C2 lists.
- WYBOT B1
- Caution
- WYBOT C2
- Better fit
Ordinary debris in a small pool
The simpler requirement is covered by B1.
- WYBOT B1
- Better fit
- WYBOT C2
- Good
In practice
Differences you will notice
Rated pool area almost doubles with C2
That limit is larger by about 87 percent.
How we worked this out
Subtract 1150 from 2152 to get 1002 square feet. Dividing 1002 by 1150 gives 87.1 percent.
Rated area grows faster than runtime
Area goes up about 87 percent, but maximum runtime goes up 50 percent.
How we worked this out
Dividing 180 by 120 and subtracting 1 gives 50 percent. Coverage is a rating from the manufacturer and not a fixed guarantee of square feet per minute.
With the secondary filter, the debris target is different
Both sit in the 180-micron class, and C2 adds a 10-micron stage.
How we worked this out
As a nominal pore-size scale, 180 divided by 10 comes to 18. That does not mean eighteen times better capture or water clarity.
Option A
WYBOT, 2026
B1
This compact cordless step-up brings wall and waterline modes and app-based setup.
- Best for
- Cordless wall coverage for a smaller pool, at a moderate price
Facts we checked
- For pools up to 1,150 square feet, it can run up to 120 minutes.
- Floor, walls and waterline are all covered.
- The listed specs from WYBOT: 2,113 GPH flow, app control and a 14.22-pound weight.
Option B
WYBOT, 2026 Upgrade
C2
This is the widest-ranging WYBOT on the list, with a three-hour battery, seven modes and a 10-micron secondary filter.
- Best for
- Cordless cleaning of a large pool where both fine debris and flexible modes count
Facts we checked
- WYBOT's ratings are 2,152 square feet and up to 180 minutes.
- There are seven modes, covering floor, walls and waterline.
- Flow is 3,592 GPH, and the filter stack combines 180-micron and 10-micron media.
Spec by spec
Where they really differ
| Spec | WYBOT B1 | WYBOT C2 | In practice |
|---|---|---|---|
| Rated area | 1,150 square feet | 2,152 square feet | Advertised coverage grows by 1,002 square feet with C2. |
| Maximum runtime | 120 minutes | 180 minutes | One more hour before recharging with C2. |
| Filter media | 180-micron media | 180-micron plus 10-micron secondary media | A substantially finer layer comes with C2. |
| Listed modes | Five named choices | Seven modes | More cleaning choices are configured on C2. |
Trade-offs
What each pick costs you
With WYBOT B1
- The 180-micron filter is better suited to ordinary debris than to very fine dust.
With WYBOT C2
- Long cycles are followed by downtime while the battery charges.
Change of plan
When the answer changes
You want full-zone cleaning and no battery to recharge
Neither model fits. Advantage Ultra is corded and cleans the floor, walls and waterline.
Decision guide
How to decide
Choose B1 when the pool is smaller and the debris is ordinary. Choose C2 for much more rated area, an additional hour of maximum runtime and a 10-micron secondary filter that deals with finer material.
When the pool nears the B1 limit
C2 gives you a bigger advertised area margin and more battery time. Because an irregular shape, slopes and wall work can eat up more of a session, treat the maximum area as only a first check of fit. Never assume the rated area guarantees one-pass coverage.
If dust settles after each swim
When small particles slip through coarser baskets, the finer secondary media in the C2 is the clearer reason to step up. It may need rinsing more often as it fills. The B1 is easier to justify if what keeps coming back is ordinary leaves and grit in a smaller pool.
When choosing modes
Both let you pick floor, wall and waterline work in the app. The extra modes on the C2 only help if they fit your cleaning routine. Choose the mode you want before the robot goes under and follow the model guidance on scheduling, instead of counting on a continuous phone link underwater.
What this page can’t tell you
- The flow, runtime and coverage figures come from the manufacturer and are not matched, independent pool-cleaning tests.
- How well a robot climbs walls, handles steps and cleans the waterline depends on pool geometry and surface conditions. Having an app does not mean you get live underwater radio control.
By the numbers
What the data shows
What we found across the robot pool cleaners we compare, plus the checked facts behind each finding.
How many fit
None of the 27 models checked meets all of “My pool is small or less than 33 feet”, “My pool is large or nearly 50 feet”, “My pool collects fine dust, sand or dead algae”, and “No cable should run across my pool”, so the pick goes to the closest practical compromise.
0 models fit, out of 27 checkedThe gap in numbers
WYBOT C2 lists 180 min for listed full cleaning cycle, 50% more than the 120 min on WYBOT B1.
- WYBOT B1
- 120 min
- WYBOT C2
- 180 min
- Models with this figure
- 13 of 27
Show the facts and the math
How we countedThe count uses each product's current fit ratings for “My pool is small or less than 33 feet”, “My pool is large or nearly 50 feet”, “My pool collects fine dust, sand or dead algae”, and “No cable should run across my pool”. A need with no documented match is not counted.
How we calculatedCycles listed in hours are shown in minutes. Optional quick modes and unlimited corded running are left out. For context, 13 of 27 models publish comparable figures.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| WYBOT B1 |
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| WYBOT C2 |
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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.
WYBOT B1
The B1 1,150-square-foot limit is enough for your pool.
See price & reviews on AmazonWYBOT C2
Your pool calls for the larger 2,152-square-foot rating.
See price & reviews on AmazonEach link opens in a new tab.
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