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Window cleaning robot

Ecovacs WINBOT mini 2 review

The slim Winbot for narrow panes from 25 × 25 cm: 8,000 Pa, felt brushes at all four corners, ultrasonic mist from a 50 ml tank for 30 m², WIN-SLAM 4.0 and 30 minutes of grip after a power cut.

Price in the manufacturer's shop
$240
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8,000 PaNot published30 min backupSpray system

Review method: Specification analysis

Our verdict

The mini 2 keeps the MINI's 215 mm square and 55 mm height and fixes most of what it lacked. Suction goes from 7,500 to 8,000 Pa and 3,400 Pa on the move, with pressure compensation that reacts in 0.04 s; the planner moves up to WIN-SLAM 4.0 with resume, return to start and obstacles detected from 2 mm; and felt brushes at all four corners spin at up to 84 rpm to clean to 1 mm from the frame. An ultrasonic atomiser mists from four nozzles out of a 50 ml tank rated for 30 m². A 3,000 mAh internal battery holds it on for 30 minutes after a power cut, the 3.3 m rope is rated to 1,900 N on the German page and 1,600 N on the US one, and at 1.3 kg it is as light as the N1. It stays corded, 3.5 m from the power unit plus a 1.2 m mains lead, and Ecovacs prints no noise figure, no speed beyond about 2 min 30 s per square metre and no voice prompts.

Pros

  • Fits panes from 25 × 25 cm; 215 mm square, 55 mm high, 1.3 kg
  • 8,000 Pa with pressure compensation reacting in 0.04 s, 30-minute power-cut reserve
  • Corner brushes at all four corners, to 1 mm from the frame, 90% coverage
  • WIN-SLAM 4.0 with resume, return to start and obstacle detection from 2 mm
  • Two-year warranty; the cheapest Winbot alongside the MINI

Cons

  • Corded: 3.5 m from the power unit plus a 1.2 m mains lead
  • About 2 min 30 s per square metre, and a 50 ml tank rated for 30 m²
  • No noise figure and no voice prompts stated for this model
  • Mode count unclear: seven in the spec list, six in the Canadian title, five in the US copy

Best for

  • Windows with glazing bars, bathroom glass and shower screens
  • A first window robot for a flat with a socket near the glass

Not recommended for

  • Large windows and patio doors, where 30 m² a fill and two and a half minutes a square metre add up
  • Rooms without a socket

Score breakdown

Cleaning
66 /100
Adhesion
100 /100
Coverage
76 /100
Safety
76 /100
Navigation
100 /100
Ease of Use
56 /100
Reliability
62 /100
Value
88 /100
How we score →

In detail

Cleaning

It sprays water from a 50 ml tank and cleans about 30 m² per fill. It has 7 cleaning modes. It reaches into corners.

Grip and fit

Suction of 8,000 Pa keeps it on the glass, with pressure compensation. It detects the pane edge, so frameless glass is fine.

Safety

After a power cut it holds on for 30 minutes. A safety rope is included.

Navigation and control

It plans its path, resumes after an interruption, returns to where it started and steers round obstacles. It comes with a remote. The cable reaches 3.5 m.

Specifications

Cleaning

Spray system
Yes
Water tank
50 ml
Glass per fill
30 m²
Cleaning speed
Not published
Cleaning modes
7
Corner cleaning
Yes
Spray
Ultrasonic mist, 10 µm droplets, four nozzles
Corner brushes
Felt brushes at all four corners, up to 84 rpm, to 1 mm from the frame
Time per square metre
About 2 min 30 s, fast mode
Stated area coverage
Up to 90%
Pad pressure on the glass
14 N

Adhesion

Suction
8,000 Pa
Pressure compensation
Yes
Suction while moving
3,400 Pa
Pressure compensation response
0.04 s

Fit

Largest pane
Not published
Smallest pane
25 × 25 cm
Edge detection
Yes
Other surfaces
No
Frame detected from
1 mm
Obstacle detected from
2 mm

Safety

Power-cut backup
30 min
Safety rope
Yes
Rope rating
Not published
Fault self-check
No
Backup battery
3,000 mAh
Safety rope
3.3 m
Rope tensile rating
1,900 N on the German page, 1,600 N on the US page
Edge sensing response
0.02 s
Stated protection layers
10

Navigation

Path planning
Yes
Resumes after interruption
Yes
Returns to start
Yes
Steers round obstacles
Yes

Control

Remote control
Yes
Voice prompts
No
Cable reach
3.5 m
Cordless
No
Mains lead
1.2 m

Power

Battery
Not published
Runtime
Not published
Charging time
Not published

Connectivity

Wi-Fi
Yes
Bluetooth
Yes
4G / LTE
No

Physical

Weight
1.3 kg
L × W × H
215 × 215 × 55 mm
Noise
Not published

Support

Warranty
24 months
Released
2026

Ecovacs DE, US and CA shop product pages and embedded specification lists, retrieved 2026-10-01

Sources

Where to buy

Manufacturer's store
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Amazon.com
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Prices are read every night from the manufacturers' shops that list the machine, and shown as read. A price no read has confirmed for several days is marked with the day it was last seen. Where a week or more of readings exists, the lowest we recorded in the last 30 days is stated as well. RoboVerdict may earn a commission when you buy through links on our site. This does not affect our rankings. As an Amazon Associate I earn from qualifying purchases.

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In our rankings

Head to head

Top picks

  • MOVA

    N1

    MOVA's light 8,000 Pa window robot: sprays from a 120 ml tank for 32 m², plans a Z or N route, talks you through the job in 15 languages and holds on for 30 minutes after a power cut.

  • Ecovacs

    WINBOT W3 OMNI

    Ecovacs' 2026 flagship: 10,000 Pa, a TruEdge corner scrubber, six nozzles on an 80 ml tank for 50 m², 16 cm/s, and a 10 kg station that washes the pads itself and runs 130 minutes off the mains.

  • Dreame

    C1 Station S

    Dreame's C1 with an 8,000 Pa motor and a portable battery station: corner brushes, 14 cm/s with resume and return to start, a 140 kg-rated cable, 63 dB, panes to 2.5 × 4 m, on glass, marble or tiles.