Comparison HOBOT 298 vs ECOVACS WinBot X

The nominal processing time for 1 m² of glass helps assess the operating speed of a window-cleaning robot: the lower the value in min/m², the faster the pass. For example, at 2.5 min/m², a surface measuring 4 m² will require about 10 minutes, excluding a repeat cycle, repositioning the device, and preparing the cleaning cloths. Models are best compared in identical modes, since the result is affected by the route, degree of contamination, and number of passes.

Power consumption characterizes the load on the motor, suction fan, drives, and electronics, but it does not directly measure cleaning quality. It is more appropriate to compare this value within the same type of equipment: a more powerful device may provide greater operating headroom, but streaks and residual water are influenced more by the nozzle design, the condition of the cloths, and the movement algorithm. For corded models, this value also helps assess the requirements for the adapter or external power source.

— Mains power. Continuous power allows the window-cleaning robot to operate without runtime limitations and maintain stable fan power throughout the entire cycle. This is convenient for large windows, panoramic glazing, and sequential cleaning of several surfaces when interruptions for charging are undesirable. The operating radius depends on the cable length and the location of the power outlet.
It is worth noting that mains-powered robots are equipped with a battery for backup power in case of a power outage; however, it does not make the robot battery-powered, but only temporarily maintains adhesion to the glass.

— Battery. Cordless power frees the handheld window vacuum from the cable and allows it to be easily moved between windows, mirrors, shower screens, and smooth tiles. The cord does not interfere with movement and does not require a power outlet near the work area. Cleaning time is limited by the battery charge, so when choosing a model, it is important to consider the operating time and subsequent charging speed.

Battery capacity characterizes the battery’s stored electrical charge. However, the stated operating time provides a more accurate indication of the actual cleaning duration, as consumption depends on the motor and electronics power. Comparing capacity is relevant only for models with the same battery voltage.

Runtime indicates how long a window vacuum can operate without recharging. The more windows or other glass surfaces you plan to clean in one session, the more runtime you will need; some charge should be reserved for re-cleaning dirty areas. As the battery wears and different modes are selected, actual runtime may decrease.

The time required to fully recharge the battery-powered window vacuum. The shorter it is compared with the runtime, the easier it is to complete several cleaning cycles with a short break.

The backup power system uses a built-in battery to keep the window-cleaning robot attached to the glass in an emergency after the mains power goes out. It does not allow full cleaning to continue, but keeps the device attached to the glass and gives you time to remove it in the event of a sudden power outage or accidental cable disconnection. The specified time indicates how many minutes the system can maintain the robot’s adhesion to the glass without mains power.

The noise level indicates how loud the window cleaner operates: the lower the value, the more comfortable the device is to use indoors. Models quieter than 60 dB are comparable in volume to a calm conversation, the 60 – 65 dB range is already clearly audible, while devices above 65 dB may interfere with work or relaxation nearby. A robot produces sound throughout the entire cycle, whereas a handheld vacuum makes noise only while directly collecting water.

Smartphone control allows you to control the window-cleaning robot through the dedicated mobile app. From your phone, you can start and stop cleaning, select a mode, change the direction of movement, and monitor the device status—the exact set of commands depends on the model. The smartphone connection can be established via Bluetooth—for direct control nearby without a router—or via Wi‑Fi, which provides a greater connection range and may support remote access over the internet.