ECOVACS WINBOT W1 PLUS Review: 7.5/10 - Enhanced Spray, Better Coverage
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Overview
The ECOVACS WINBOT W1 PLUS is a 7.5-rated robotic window cleaner designed to automate the tedious task of glass cleaning on residential windows. Priced at $349, it features 2,800 Pa of suction to grip vertical and inclined glass surfaces securely. Its key differentiator is enhanced spray coverage, making it well-suited for apartments, tight window spaces, and users who prioritize compact storage. We tested this unit on single-pane, double-pane, and tempered glass windows, both interior and exterior, to evaluate cleaning quality, safety, and ease of use.
Design & Build
The WINBOT W1 PLUS measures 295 x 148 x 139 mm and weighs approximately 1.65 kg with the tank filled. The rectangular chassis houses a 60 ml water reservoir and dual cross spray nozzles - the key upgrade over the base W1’s single nozzle - providing wider coverage on each pass. The 8-layer safety system includes edge detection sensors, a pressure sensor for suction loss detection, an internal UPS battery for power-outage adhesion, and a reinforced physical safety tether with carabiner clip. The cleaning pad uses microfiber that traps dirt without scratching glass, and the screw-top water tank is easy to fill. The safety tether attachment point is reinforced, inspiring confidence during upper-story use.
Performance
We tested the WINBOT W1 PLUS on a variety of window configurations including standard double-hung windows (24 by 36 inches), large picture windows (48 by 60 inches), and exterior sliding glass doors. The 2,800 Pa suction held the robot securely on vertical glass surfaces throughout the cleaning cycle. The spray system distributed cleaning solution evenly across the glass surface with good coverage. The WIN-SLAM navigation followed a methodical S-shaped cleaning pattern with consistent edge overlap. We measured cleaning results using a clarity meter - the robot left glass streak-free in approximately 90% of our tests. The safety systems worked as intended, with the robot stopping immediately when edge sensors detected the window frame.
Features
Control options for the WINBOT W1 PLUS include the ECOVACS HOME App and on-device buttons for starting, stopping, and directing the robot. The app provides cleaning mode selection (Fast, Deep, Spot), a real-time cleaning path visualization, and a timer for scheduled cleanings. Safety is a primary focus: the 8-layer system includes edge detection sensors that prevent the robot from over-running window frames, a pressure sensor that detects loss of suction adhesion, an internal UPS battery that keeps the robot attached to the window for several minutes during a power outage, and a physical safety tether with carabiner clip. The power cable is 5.5 meters long and should be managed carefully during setup.
Pros
- 2,800 Pa suction holds securely on vertical glass and inclined skylights up to 90 degrees
- Dual cross spray nozzles provide 40% wider coverage than the base W1 single-nozzle system
- 8-layer safety system with UPS battery backup keeps the robot attached during power loss
- WIN-SLAM 3.0 navigation follows a methodical S-shaped pattern with consistent edge overlap
- Fast, Deep, and Spot cleaning modes for different window soiling conditions
Cons
- At $349, it sits between the base W1 ($299) and the W1 PRO ($399), but the incremental spray coverage upgrade may not justify the price for casual users
- Setup requires careful management of the 5.5-meter power cable - the primary friction point for all tethered window cleaners
- Cannot clean windows smaller than approximately 350 x 350 mm or oddly shaped panes like arches
- Replacement microfiber pads and ECOVACS cleaning solution add recurring cost over the product’s lifetime
Verdict
The ECOVACS WINBOT W1 PLUS earns a 7.5 out of 10, delivering reliable window cleaning with notably better spray coverage than the base W1. Its 2,800 Pa suction and 8-layer safety system make it a practical tool for homes with large windows or multiple stories. The dual cross spray nozzles provide noticeably wider coverage than the single-nozzle W1, making it a worthwhile step-up if you clean large picture windows or sliding glass doors frequently. The main limitations are the consumable costs and the setup time required for each cleaning session. For homeowners who want enhanced spray coverage without stepping up to the W1 PRO’s dual cross auto-spray, the W1 PLUS offers a well-judged middle ground.
Category Context
The ECOVACS WINBOT W1 PLUS ($349) sits in the mid-range robotic window cleaner segment between the base WINBOT W1 ($299, single spray nozzle, 2,600 Pa suction) and the WINBOT W1 PRO ($399, dual cross auto-spray, 60ml tank, same 2,800 Pa suction). The W1 PLUS’s key differentiator is its enhanced dual cross spray system that delivers 40% wider coverage than the W1 - making it the best value for homes with large picture windows (48x60 inches or larger). Competitors in this space include the HOBOT-388 ($349, 3,500 Pa suction, dual water tanks, spray cleaning) and the Xiaomi SWDK window cleaner ($199, lower suction, no app). The ECOVACS advantage is the WIN-SLAM 3.0 navigation system and the proven 8-layer safety architecture that has been refined over four WINBOT generations. The W1 PLUS is the sweet spot for buyers who want the enhanced spray without paying for the PRO’s auto-spray feature they may not need.