The catch
WYBOT C1
The 180-micron basket here is coarser than the secondary 10-micron filter in the C2.
Side by side
WYBOT C1 vs Ecovacs P1: C1 keeps filter care to a single filter, while P1 adds finer media
Quick verdict
Finer secondary filtration and higher published flow go to the P1. The C1 documents floor, wall and waterline modes clearly and keeps debris handling simpler with a single filter.
Before you buy
Why, and what it costs you
Rated area is about 20 percent larger on P1
That is an advertised gain of 322 square feet.
Where this comes from
Subtract 1615 from 1937 for 322, then divide 322 by 1615 for 19.9 percent.
The catch
ECOVACS ULTRAMARINE P1
Steps are something ECOVACS says the P1 is not designed to clean.
WYBOT C1
- Why pick it
- Waterline cleaning that is explicitly documented matters to you.
- The debris you usually get suits a single 180-micron filter.
- The catch
- The 180-micron basket here is coarser than the secondary 10-micron filter in the C2.
ECOVACS ULTRAMARINE P1
- Why pick it
- Fine silt comes first.
- The larger advertised area and the Eco-mode runtime ceiling appeal to you.
- The catch
- Steps are something ECOVACS says the P1 is not designed to clean.
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What this page compares
Before buying a cordless cleaner, see how WYBOT C1 and Ecovacs Ultramarine P1 stack up on filter scale, published flow, pool area and battery claims tied to specific modes.
Which one fits
Pick the situations that sound like you
Secondary filtration is needed for fine silt
P1 comes with 3-micron inner media.
- WYBOT C1
- Good
- ECOVACS ULTRAMARINE P1
- Better fit
Documentation of a waterline mode has to be explicit
C1 spells that coverage out.
- WYBOT C1
- Better fit
- ECOVACS ULTRAMARINE P1
- Caution
Pool area over 1,615 square feet and at most 1,937 square feet
P1 is rated up to 1,937.
- WYBOT C1
- Not suitable
- ECOVACS ULTRAMARINE P1
- Better fit
A single filter stage is preferred
The media on C1 is single-stage and simpler.
- WYBOT C1
- Better fit
- ECOVACS ULTRAMARINE P1
- Good
In practice
Differences you will notice
Rated area is about 20 percent larger on P1
That is an advertised gain of 322 square feet.
How we worked this out
Subtract 1615 from 1937 for 322, then divide 322 by 1615 for 19.9 percent.
About 58 percent more flow is claimed
P1 is listed 1,762 GPH higher.
How we worked this out
Take 3038 from 4800 to get 1762, then divide by 3038 for 58.0 percent. The methods do not match, so treat this as no estimate of cleaning speed.
Fine filtering differs by much more than area does
C1 lists only 180-micron media, while P1 adds 3-micron inner media.
How we worked this out
On a nominal pore-size scale, 180 divided by 3 is 60. You cannot work out capture efficiency or clogging resistance from that ratio.
Option A
WYBOT, 2025 OS7010C
C1
This cordless cleaner handles the floor, walls and waterline with five modes and a 180-micron basket. The offer selected here is the 2025 C1.
- Best for
- Pools of up to 1,615 square feet where you want cordless floor, wall and waterline cleaning
Facts we checked
- According to the selected C1 manual, rated pool area is 120 to 150 square meters, about 1,292 to 1,615 square feet.
- Floor, walls and waterline are among five cleaning modes. Runtime is published as 120 to 150 minutes.
- A 180-micron filter and a flow of 11.5 cubic meters per hour, about 3,038 US gallons per hour, are listed in the manual.
- One charge can be split by scheduled cleaning into two 60-minute, three 40-minute or four 30-minute sessions.
Option B
ECOVACS, P1
ULTRAMARINE P1
This cordless robot moves a lot of water, has unusually fine secondary filtration and supports planned cleaning through the app.
- Best for
- A large pool with fine silt, for owners who put a cordless robot and repeatable navigation first
Facts we checked
- A 3-micron secondary filter works with 180-micron media in the dual filter.
- Coverage reaches 1,937 square feet, and published flow is 4,800 GPH.
- Documented features are SmartNavi 2.0, app scheduling and up to 180 minutes in Eco mode.
Spec by spec
Where they really differ
| Spec | WYBOT C1 | ECOVACS ULTRAMARINE P1 | In practice |
|---|---|---|---|
| Filters | 180-micron single stage | 180-micron outer plus 3-micron inner | Fine-particle media is what P1 adds. |
| Published flow | 3,038 GPH | 4,800 GPH | The pump-flow figure listed for P1 is higher, which is not a measured pickup advantage. |
| Rated area | 1,615 square feet | 1,937 square feet | Advertised area is 322 square feet larger on P1. |
| Maximum runtime | 150 minutes | 180 minutes in Eco mode | P1's longest figure is tied to a single mode. |
| Mode structure | Five modes including waterline | Three modes and three efficiency levels | Separate coverage zones cannot be derived by multiplying mode count by efficiency levels. |
Trade-offs
What each pick costs you
With WYBOT C1
- According to the manual, runtime is 120 to 150 minutes, so a large or complex pool can call for another charged session.
With ECOVACS ULTRAMARINE P1
- Its Eco floor-cleaning mode is where the longest runtime comes from.
Change of plan
When the answer changes
You want finer secondary filtration along with documented waterline modes
Neither model fits. C2 pairs full-zone modes with a 10-micron secondary filter.
Decision guide
How to decide
Pick P1 for the finer secondary filter and higher published flow. Pick C1 for clearly documented floor, wall and waterline modes and a simpler single-filter debris routine.
If fine dust keeps returning
The secondary layer in the P1 targets a different debris scale than the single basket in the C1. What you need to know is whether fine particles are getting past your current cleaner. Very fine media can load up fast, so inspect and rinse it as the manual says, and do not expect the larger flow number to prevent clogging.
If the waterline is your focus
The C1 names waterline cleaning outright, both in its documented coverage and in its selectable modes. The current P1 page puts the emphasis on floors and walls, so nothing here confirms a comparable dedicated waterline program. If a persistent waterline ring is why you are buying the P1, confirm that function first.
When planning battery use
The P1's added 30-minute ceiling applies to Eco mode only, so do not read it as three hours of maximum-flow wall cleaning. Compare the claimed runtime with the mode you will run, and allow some margin for an irregular pool.
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
Only 3 of the 27 models checked meet every need here: “My pool collects fine dust, sand or dead algae”, “Regular scrubbing is needed at the waterline”, “My pool is large or nearly 50 feet”, and “No cable should run across my pool”.
3 models fit, out of 27 checkedShow the facts and the math
How we countedThe count uses each product's current fit ratings for “My pool collects fine dust, sand or dead algae”, “Regular scrubbing is needed at the waterline”, “My pool is large or nearly 50 feet”, and “No cable should run across my pool”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| WYBOT C1 |
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| ECOVACS ULTRAMARINE P1 |
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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 C1
Waterline cleaning that is explicitly documented matters to you.
See price & reviews on AmazonECOVACS ULTRAMARINE P1
Fine silt comes first.
See price & reviews on AmazonEach link opens in a new tab.
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