Ecovacs Winbot Mini 2 · Ecovacs Winbot W1 Pro

The small body that reaches tight panes also carries a 50 ml tank that needs refilling every few windows.

Corded power means unlimited runtime; the cable is also what tangles mid-clean, per one owner’s log.

Mains power removes the runtime ceiling but adds a leash: the 4.7 m cord has to reach an outlet at every pane and be kept clear of the robot’s path and the open window.

Cross-pattern coverage is efficient on flat glass but brittle on slight curves or frameless assemblies, forcing manual intervention and negating autonomy gains.

Homes with large picture windows

Ecovacs lists about 2.5 minutes per square meter in Fast Mode, and the owner review found large windows take far too long.

Owners who want to clean many windows per water fill

The tank holds 50 ml, which the owner review found covers only three to four small windows in Deep mode.

Places without a nearby power outlet

It runs on a 4.7 m mains cable; the built-in battery only holds it on the glass for 30 minutes after power loss.

Owners who need a steady app connection

The 90-day owner review reports the app connection dropping about every 15 to 20 cycles.

Exterior glass above the ground floor

Ecovacs supplies a 1.5 m safety tether and specifies anchoring it to a stable fixed object inside the room, naming a table leg, chair leg, curtain rod or stair handrail. That arrangement suits glass you can stand at. Ecovacs describes no longer rope and no external anchor for this machine.

Heavily framed or specialty window types

Complex frames and curved tempered glass challenge edge detection. Panes smaller than 8 sq ft may require manual repositioning to prevent repeated path overlap.

Owners unable to commit to weekly pad inspection and cleaning

Pads left wet after a run pick up mineral deposits in hard-water areas and stiffen, which shows up as uneven water distribution. Seasonal use without a rinse between sessions leads to clogged nozzles.