# Ecovacs Winbot vs Hobot 2S: which window cleaning robot to buy Ecovacs Winbot vs Hobot is a choice between a range and a single robot. Ecovacs sells Winbots from the $239.99 mini 2 to the $549 W3 Omni with a pad washing station, while the $299 Hobot 2S is a corded square robot with dual ultrasonic spray and the second highest score in our window ranking. Updated Oct 21, 2026. HTML version: https://robotsforthat.com/guides/ecovacs-winbot-vs-hobot/ ## Short answer Buy the Ecovacs Winbot W3 Omni ($699.99) if you have lots of large or hard to reach glass: it runs cordless for up to 130 minutes and its station washes the pad for you. Buy the Winbot mini 2 ($239.99) for small or narrow panes; it is the cheapest of the four and fits windows down to 25 x 25 cm. Buy the Hobot 2S ($299) if you want a simple corded robot with dual ultrasonic spray and frameless edge detection. It scores 7.7/10 in our ranking against 6.3 for the W3 Omni, mostly on price, but its newest independent review is from 2021. | Feature | Winbot W3 Omni | Winbot W2S Pro | Winbot mini 2 | Hobot 2S | |---|---|---|---|---| | Price (Oct 21, 2026) | $699.99 | $399.99 | $239.99 | $299 (list $349) | | Power | Cordless, up to 130 min from station battery | No station; Wired Mode for continuous power | Mains power while cleaning | Corded | | Backup if power cuts | Stays on glass over 30 min | Stays on glass over 30 min | 3,000 mAh battery, over 30 min | 20 min battery with audio alert | | Station | 10 kg station washes and rewets the pad | None | None | None | | Suction (maker claim) | 3,300 Pa moving; marketing cites 10,000 Pa | Up to 10,000 Pa | 8,000 Pa max, 3,400 Pa moving | 6.0 kg suction force (Hobot lists kg, not Pa) | | Spray | Auto spray, 80 ml tank | Three nozzle spray, 120 ml tank | Ultrasonic spray, 4 nozzles, 50 ml tank | Dual ultrasonic nozzles, two 26 ml tanks | | Speed (maker claim) | About 1 min 35 s per m² in Fast mode | Not published | About 2 min 30 s per m² in Fast mode | About 2.4 min per m² | | Edges and corners | TruEdge spinning scrubber, 1.1 mm edge accuracy claimed | TruEdge 2.0, within 0.04 in of corners claimed | Brushes on all four corners, within 1 mm claimed | Square body; no measurement published | | Frameless glass | Yes, 3 mm glass or thicker | Yes, optical edge sensor | Yes, 3 mm glass or thicker | Yes, edge leakage sensor | | Safety rope | Power and safety cord rated to 100 kg, plus 1 m station rope | Not stated by Ecovacs | 3.3 m rope rated to 1,600 N plus a backup rope | Included; Hobot US lists 150 kgf | | Replacement pads | $39.99 per 2 pack | $29.99 per 2 pack | $24.99 per 2 pack | No sourced price yet | | Newest independent review | Several in 2026; CyberShack 4.5/5 | None found yet | TechRadar, 2026 | Appliance Retailer, 2021, 8.5/10 | | Our score | 6.3/10 | Not scored | Not scored | 7.7/10 | ## Price and lineup Ecovacs sells four Winbots on its US store as of October 21, 2026: the mini 2 at $239.99, the W2S Pro at $399.99, the W2S Pro Omni at $599.99 and the W3 Omni at $549 (it was $699.99 earlier in October). Hobot's US store lists the Hobot 2S at $299, down from $349. That puts the Hobot 2S between the mini 2 and the W2S Pro on price. Hobot also lists a 1 year warranty on the 2S. ## Corded vs cordless The biggest difference is power. The W3 Omni runs on a battery station for up to 130 minutes, so you do not need an outlet near the window. The mini 2, the W2S Pro and the Hobot 2S all need mains power while they clean. Every model has a backup battery to hold on if the power is cut. Ecovacs says its Winbots stay attached for over 30 minutes. Hobot lists 20 minutes for the 2S, with an audio alert, which is the shortest of the four. ## Spray, edges and frameless glass All four spray cleaner on their own and all four handle frameless glass. The Hobot 2S uses two ultrasonic nozzles that make a fine 15 μm mist, but its two tanks hold only 26 ml each. The W2S Pro has the largest tank at 120 ml, and Ecovacs rates the W3 Omni's 80 ml tank for about 50 m² per fill. For edges, Ecovacs makes the strongest claims. The W3 Omni uses a spinning TruEdge scrubber, the W2S Pro uses TruEdge 2.0 corner scrubbers, and the mini 2 has brushes on all four corners. Hobot says the square 2S cleans into corners but publishes no figure. ## Safety on outside windows Every robot here comes with a safety tether, and you should always use it. The W3 Omni's power cord doubles as a safety rope rated to 100 kg. The mini 2 ships with two 3.3 m ropes, one rated to 1,600 N. Hobot US lists a 150 kgf rope for the 2S. Ecovacs does not state the rope rating for the W2S Pro. ## What reviewers found - CyberShack gave the W3 Omni 4.5 out of 5 after several weeks, finding results better than hand cleaning with precise edges, but a faint pad outline was left behind. - Gizmodo found the W3 Omni fast but saw streaks and missed areas on tapered frames, and judged it hard to justify at $700. - TechRadar's homes editor found the mini 2 cleaned panes only slightly wider than itself and removed water marks and bird droppings. - Appliance Retailer gave the Hobot 2S 8.5 out of 10 and found a streak free finish that is hard to match by hand. That review dates from 2021, and we found no newer independent test. - We found no independent review of the W2S Pro yet. ## Who should buy which - Lots of large glass or no outlet nearby: Winbot W3 Omni. - Small or narrow panes, or the lowest price: Winbot mini 2. - Simple corded robot with dual ultrasonic spray at a midrange price: Hobot 2S. - Indoor glass and mirrors near an outlet: Winbot W2S Pro, though no independent review exists yet. - Want a battery station for less than the W3 Omni: look at the Winbot W2S Pro Omni ($599.99, 7.0/10 in our ranking). - Only a few ordinary windows: reviewers agree a squeegee is cheaper and often faster. ## Questions people ask ### Is Ecovacs Winbot better than Hobot? Ecovacs has the wider range and the only cordless model with a pad washing station, the W3 Omni. The Hobot 2S scores higher in our ranking (7.7 vs 6.3 for the W3 Omni) because it costs $400 less, but its only independent review we found is from 2021. ### Which window robot works without an outlet? Of these, only the Winbot W3 Omni. Its station battery gives up to 130 minutes of cleaning. The W2S Pro, the mini 2 and the Hobot 2S all clean on mains power. ### What happens if the power goes out? Each has a backup battery. Ecovacs says its Winbots stay on the glass for over 30 minutes. Hobot lists 20 minutes for the 2S with an audio alert. Always attach the safety rope too. ### Which is best for small windows? The Winbot mini 2. It measures 215 x 215 mm and Ecovacs lists a minimum window of 25 x 25 cm. ### Do Winbot and Hobot work on frameless glass? Yes. Ecovacs says the W3 Omni, W2S Pro and mini 2 detect frameless edges, and Hobot says the 2S uses an edge leakage sensor to do the same. ### Do they clean the window frame? No. They clean the glass up to the edge. Frames and sills still need a cloth. ## Sources 1. [Ecovacs US: WINBOT W3 OMNI](https://www.ecovacs.com/us/shop/winbot-window-cleaning-robot/winbot-w3-omni) 2. [Ecovacs US: WINBOT W3 OMNI specifications](https://www.ecovacs.com/us/winbot-window-cleaning-robot/winbot-w3-omni) 3. [Ecovacs US: WINBOT W2S PRO](https://www.ecovacs.com/us/shop/winbot-window-cleaning-robot/winbot-w2s-pro) 4. [Ecovacs US: WINBOT mini 2](https://www.ecovacs.com/us/shop/winbot-window-cleaning-robot/winbot-mini2) 5. [Hobot US: HOBOT-2S](https://hobot.us/products/hobot-2s-window-cleaning-robot-with-dual-ultrasonic-water-spray) 6. [Hobot Taiwan: HOBOT-2S specifications](https://hobot.com.tw/hobot-2s) 7. [CyberShack: Ecovacs Winbot W3 Omni review](https://cybershack.com.au/cleaning/ecovacs-winbot-w3-omni-review/) 8. [Gizmodo Japan: Ecovacs Winbot W3 Omni review](https://www.gizmodo.jp/2026/04/ecovacs-winbot-w3-omni-review-window-cleaning-robots-have-a-long-way-to-go.html) 9. [TechRadar: two robots that keep my apartment clean](https://www.techradar.com/home/robot-vacuums/my-apartment-is-always-sparkling-clean-and-i-owe-it-all-to-these-two-robots) 10. [Appliance Retailer: Hobot 2S review](https://www.applianceretailer.com.au/?p=66416)