Window-cleaning robots / HOBOT

HOBOT S6 Pro

An app-controlled square window robot with two reciprocating mops and ultrasonic spray on both sides.

Sources checked: United States, Australia, United Kingdom, Canada
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HOBOT S6 Pro

Photo: HOBOT

Regional versions and model notes
  • United States: exact local listing unconfirmed
  • Australia: exact local listing unconfirmed
  • United Kingdom: exact local listing unconfirmed
  • Canada: exact local listing unconfirmed
  • Minimum workable window is greater than 50 × 50 cm.
  • Requires secured external power during normal operation; the 20-minute UPS is backup, not a cordless cleaning claim.
  • Use the supplied safety rope and follow the installation instructions; the edge sensors do not remove the need to secure the robot.

What it can do

Features and the setup they need.

Features, setup and recorded confirmation
Feature & setupConfirmation & sources

Clean with reciprocating mops

Device feature

Two mops reciprocate 600 times per minute through a 4 mm stroke.

✓ Confirmed

HOBOT · 2026-10-26

Spray from two ultrasonic nozzles

Device feature

Uses two removable 26 mL tanks and dual ultrasonic spray.

✓ Confirmed

HOBOT · 2026-10-26

Steer with the app or remote

Device feature

iOS/Android app and included remote control support movement; app orientation can be changed to match the side of the glass you face.

✓ Confirmed

HOBOT · 2026-10-26

Receive updates and cleaning reminders

Device feature

Supports over-the-air firmware updates and cleaning reminders.

✓ Confirmed

HOBOT · 2026-10-26

Use the documented frameless-window support

Device feature

Manufacturer specifies frameless-window support with edge-leakage, bumper and pressure sensing.

What you’ll need

  • Use a window greater than 50 × 50 cm; connect external power and secure the supplied safety rope.
✓ Confirmed

HOBOT · 2026-10-26

What that means at home

Our reading of the specifications.

What to allow for

Minimum workable window is greater than 50 × 50 cm.

Living with it

Requires secured external power during normal operation; the 20-minute UPS is backup, not a cordless cleaning claim.

Model and source notes
  • Minimum workable window is greater than 50 × 50 cm.
  • Requires secured external power during normal operation; the 20-minute UPS is backup, not a cordless cleaning claim.
  • Use the supplied safety rope and follow the installation instructions; the edge sensors do not remove the need to secure the robot.

Where we checked

Features are based on the linked manufacturer documentation. Household results also check the equipment and software you select. How we check.