Which of these robots requires the least setup per cleaning session?

All three ask for hands-on setup at every session. The HUTT DDC55 has no water tank: its cloths are wetted, wrung and fitted by hand, the safety rope checked and fixed, and the robot placed on each pane. The Ecovacs Winbot W1 Pro needs its pad attached, its rope anchored and its 4.7 m cord routed to an outlet. The HOBOT 2S needs its rope tied, its tank filled and its 5 m cord routed before going on the glass.

Does the Ecovacs Winbot W1 Pro work on frameless glass?

With limits. The Ecovacs Winbot W1 Pro's record describes its cross-pattern coverage as efficient on flat glass but brittle on slight curves or frameless assemblies, which can force manual intervention. Its record also notes that complex frames and curved glass challenge its edge detection. For a frameless installation, expect to step in more often than on framed panes.

Is the HOBOT 2S usable without any smartphone or app?

Yes. The HOBOT 2S can be started from the unit or its bundled remote, though it also has an iOS and Android app, which delivers over-the-air firmware updates and cleaning reminders. Of these three, the HUTT DDC55 is the one with no app or network connection, driven from a handheld remote. The Ecovacs Winbot W1 Pro is Wi-Fi connected on the ECOVACS HOME app.

How does hard water affect the long-term cost of owning any of these robots?

Mainly through cleaning time rather than parts. The Ecovacs Winbot W1 Pro's record documents spray nozzles clogging with minerals within two to three weeks on hard tap water, handled by rinses and an annual vinegar soak. The HUTT DDC55 carries no water, so hard water means pre-treating the pane and changing cloths mid-run. The HOBOT 2S has a refillable tank, and a hard-water effect is not verified on its record.

For a home with four to six windows cleaned a few times a year, does a robot meaningfully reduce effort over a squeegee?

The records point to reach more than time. The HOBOT 2S's record says cleaning from inside the room takes the ladder out of the job, and names homes with three to five regularly cleaned windows as a fit. But each of these robots is placed by hand on every pane, with a safety rope anchored and a cord routed each time. Session times for a four-to-six-pane run are not verified on these records.

Comparisons · Robot Window Cleaners3 robots · checked 16 Oct 2026

A situation

Are robot window cleaners worth it for just a few windows?

With only a few windows, a robot has to earn its setup on every pane: a cord to reach, a pane big enough to fit, and the minutes it takes. This page lays those out for three corded models.

This page checks

List priceWhat it costs to buy
Cord reachDistance from the outlet
Smallest paneMinimum glass size
Time per areaMaker speed figures
WeightCarried to each pane

Ecovacs

Winbot Mini

IIAssistedCapable

$239.99list

Where to buy

Amazon

Oct 2024Owner reports surface consistent pad maintenance pattern after launch

Ecovacs

Winbot W1 Pro

IIIConditionalCapable

No US list price

Where to buy

Amazon

Ecovacs US product page shows no price; its US campaign page shows one

Feb 2024Winbot W2 Omni launch repositions W1 Pro as value-tier option

HOBOT

IIAssistedLimited

$349list

Where to buy

Amazon

Sep 2021HOBOT-2S window cleaning robot unveiled ahead of October 2021 US launch

Full specifications16 figures on record · 14 differ

Figure

Winbot Mini

Winbot W1 Pro

List price

Winbot Mini$239.99

Winbot W1 ProNot on record

2S$349

Released

Winbot MiniJan 2025

Winbot W1 ProJun 2022

2SOct 2021

Power

Winbot MiniMains cable (4.7 m) with backup battery (30 min power-off protection)

Winbot W1 ProMains-corded with backup battery

2SMains-corded, 5 m cord

Backup hold

Winbot Mini30 min

Winbot W1 ProNot on record

2S20 min

Smallest pane

Winbot Mini8.7 in

Winbot W1 Pro11.8 in

2S15.7 in

Safety rope

Winbot Mini427 lb

Winbot W1 ProNot on record

2S331 lb

Cleaning width

Winbot Mini8.5 in

Winbot W1 Pro10.3 in

2S9.4 in

Weight

Winbot Mini2.9 lb

Winbot W1 Pro3.4 lb

2S2.87 lb

Charge time

Winbot Mini180 min

Winbot W1 Pro180 min

2SNot on record

Battery capacity

Winbot Mini11 Wh

Winbot W1 Pro9.6 Wh

2SNot on record

Battery type

Winbot MiniLi-ion

Winbot W1 ProLi-ion

2SLi-Po

Adhesion

Winbot Mini7,500 Pa

Winbot W1 Pro2,800 Pa

2SNot on record

Noise

Winbot Mini72 dB

Winbot W1 Pro72 dB

2S64 dB

Navigation

Winbot MiniWIN-SLAM 3.0 path planning with window-frame and obstacle detection.

Winbot W1 ProWIN-SLAM cross-pattern mapping with edge detection

2SEdge-Leakage Sensor: pneumatic edge detection at the window seal and on frameless glass, with a preprogrammed zigzag route, horizontal then vertical; no mapping or vision-based navigation

Connectivity

Winbot MiniWi-Fi

Winbot W1 ProWi-Fi

2SNot on record

Size

Winbot Mini8.5 × 8.5 × 2.2 in

Winbot W1 Pro10.6 × 10.6 × 3.1 in

2S9.45 × 9.45 × 3.39 in

Add a robot24 robot window cleaners on record + Add a robot24 robot window cleaners on record

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A handful of panes

What each window costs you in setup and time

All three plug into a wall outlet. Maker times run about 2.4 to 3 minutes per 10.8 sq ft (1 m²): 2.4 for the 2S, 2.8 for the W1 Pro, 3 for the Winbot Mini. A hands-on test of the W1 Pro took about 8 minutes for one side of a 25.5 by 66 in window.

EcovacsWinbot Mini

EcovacsWinbot W1 Pro

HOBOT2S

1List priceUS dollars, list price

Winbot Mini

$239.99

Maker product page, as held in our record

Winbot W1 Pro

No list price found

Ecovacs' US campaign page shows $399.99; the product page lists no price.

Ecovacs US campaign page

$349

List price on HOBOT's US page.

HOBOT US product page

2Cord reachPower cord from robot to outlet

Winbot Mini

15.4ft (4.7 m)

Total power cable, robot to wall plug: 3.5 m DC cord plus 1.2 m AC cord. Converted from 4.7 m.

Maker product page

Winbot W1 Pro

15.4ft

Maker lists 4.7 m. A hands-on reviewer needed an extension cord for a second-floor window.

Ecovacs US page

16.4ft

Maker lists a 5 m cord.

HOBOT product page

3Smallest paneMinimum glass size, short side

Winbot Mini

8.7in

Maker prints 8.66 x 9.84 in (22 x 25 cm). Short side shown.

Ecovacs product page

Winbot W1 Pro

11.8in

Maker prints 11.8 x 15.7 in (30 x 40 cm). Short side shown.

Ecovacs US page

15.7in

Maker prints more than 15.7 x 15.7 in (40 x 40 cm).

HOBOT US product page

4Time per areaMaker speed figure

Winbot Mini

3 min per 11 sq ft (fast mode)

Printed as 3 min per square meter, plus or minus 10 seconds, in fast mode.

Maker product page

Winbot W1 Pro

2.8 minper 10.8 sq ft (1 m²)

Maker figure, 2 minutes 50 seconds, plus or minus 10 seconds.

Ecovacs US page

2.4 minper 10.8 sq ft (1 m²)

Maker gives 4.7 in (12 cm) per second, about 10.8 sq ft (1 m²) in 2.4 minutes.

HOBOT product page

5WeightThe robot alone, carried to each pane

Winbot Mini

2.9lb

Maker product page, as held in our record

Winbot W1 Pro

3.4lb

Maker lists 3.4 lb (1.53 kg).

Ecovacs US page

2.9lb

Maker lists 2.9 lb (1,300 g).

HOBOT US product page

Same on all three: plugged into a wall outlet, with a cord of 15.4 to 16.4 ft.

Close on an upstairs window sill, a square white window-cleaning robot lies face up where it was carried and set down, its coral safety rope clipped to a suction anchor stuck on the glass above it and its gold power cord run along the sill and down into a socket under it, with the garden treetops below the window.

Your home

How each one fits a home like yours

Set the conditions that describe your home. Each robot answers from its own Fit Check; nothing is scored until you choose.

Fit check

Describe your home

Pick what applies. Each robot answers from its own record.

Window style

Frame style

Building height

Across what you setEach robot’s own Fit Check

Winbot MiniSet a condition

Winbot W1 ProSet a condition

2SSet a condition

Window styleNot set

Winbot MiniNot set

Winbot W1 ProNot set

2SNot set

Frame styleNot set

Winbot MiniNot set

Winbot W1 ProNot set

2SNot set

Building heightNot set

Winbot MiniNot set

Winbot W1 ProNot set

2SNot set

Sources

Where every figure comes from

Winbot Mini · Ecovacs product page
Winbot W1 Pro · ecovacs.com/us product page and campaign page; one hands-on review, Jul 2023
2S · hobot.us product page; hobot.com.tw 2S page

Each figure was read on a maker page or seller listing on 2 Oct 2026. Not found means the pages listed were searched and say nothing; it never means the robot lacks the feature.

Questions

What readers ask

How long does one window take?

Ecovacs gives 2 min 50 s per 10.8 sq ft (1 m²) for the W1 Pro and 3 minutes for the Winbot Mini. HOBOT gives about 2.4 minutes for the 2S. A hands-on test of the W1 Pro took about 8 minutes for one side of a window.

Do they need an outlet at every window?

Yes. All three are corded: the W1 Pro lists a 15.4 ft (4.7 m) cord, the Winbot Mini 15.4 ft (4.7 m) and the 2S a 16.4 ft (5 m) cord.

What do they cost?

The W1 Pro is $399.99 on Ecovacs’ US campaign page. HOBOT’s US page lists the 2S at $349. The Winbot Mini’s list price in our record is $239.99.

Common questions

What readers ask about this comparison.

Next up

Beyond windows: which glass robots work on mirrors, shower glass, and tabletops?

Read the comparison

Comparison ID: RV–CMP–7515 · Last reviewed Jun 23, 2026 · Based on owner reports, manufacturer documentation, and firmware release notes

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