Window · Top list
Best window cleaning robots of 2026
Our verdict
Get the Ecovacs Winbot W2S Omni ($407.55 on ecovacs.com). It is the only pick here that runs cordless (110 minutes, per Ecovacs), and its station winds the cable and anchors the safety rope. The wired-only Winbot W2S is just $7.56 less, so skip it unless it drops. On a budget, the HOBOT-298 ($199) is a corded, simpler option. Every window robot needs pre-cleaned glass for good results and someone nearby while it works. Based on spec sheets, brand pages and owner reports, not hands-on tests.
Which one should you buy?
1Best window robot for most people
Ecovacs Winbot W2S Omni
Best for: Most homes, including windows far from an outlet
$407.55 at ecovacs.com, seen Oct 29, 2026In stock on ecovacs.com. A bundle with extra accessories is $440.55.
Our pick. The W2S Omni climbs glass with suction, sprays from three nozzles and lowers a spinning edge scrubber near the frame, and Ecovacs says it gets within about 1 cm of the edge. Its station holds a battery for 110 minutes of cordless cleaning, winds the cable and anchors the safety rope (company claims). Owners say it does a very good job on dusty, rain-spotted glass but still leaves a little dirt in the corners.
Buy it if
- Your windows are far from an outlet, or you clean balconies and patio doors
- You want the cable and rope managed for you
- You have tall windows you can't reach safely
Skip it if
- You expect spotless corners with no hand touch-up
- Your glass has heavy grime or limescale
- You want it to move between windows on its own (no window robot does)
Key specs
| Power (company claim) | Cordless up to 110 min from the station battery, or wired |
|---|---|
| Suction (company claim) | 8,000 Pa max, 3,000 Pa while moving |
| Edge reach (company claim) | About 1.1 cm, with a 200 RPM edge scrubber |
| Water tank | 80 ml, 230 ml cleaning solution included |
| Safety (company claim) | Rope rated to 100 kg, 11.46 lb station, 30 min power-off hold |
| Weight | 1.95 kg robot, 5.2 kg station |
Maker figures are company claims.
What owners say
Owners like: Owners say it handles dust and rain spots on the first run, works on tall windows and outward-opening panes that are hard to reach, and returns to its starting point most of the time. Owners complain: Corners stay a little dirty, very dirty glass needs several passes, pads need rinsing between runs, and it can struggle on frameless railings or misjudge where it started. You still carry it from window to window.
Summarized from: r/ecovacs: My Winbot W2S experience (good) · r/ecovacs: I caved and followed the Winbot trend, early thoughts · r/ecovacs: Winbot W2 Pro/Omni, can you share your opinions? · r/homeautomation: Got a "roomba" for my windows
2Best under $200
HOBOT-298
Best for: Indoor windows on a budget
$199 at hobot.us, seen Oct 29, 2026In stock on hobot.us; list price $249.
The budget pick. The HOBOT-298 is a square, corded window robot with an ultrasonic mist sprayer and a 40 ml tank, and HOBOT says it cleans about 40 square meters per tank (company claim). At $199 (list $249) it costs half as much as the Winbot. It has no cordless mode and no cable station, and owners say it is loud and works best on glass that is already fairly clean.
Buy it if
- You want to try a window robot for under $200
- Your windows are near an outlet
- You mostly clean light smudges and dust
Skip it if
- Noise bothers you or your neighbors
- You want edge scrubbing or app control
- Your glass is salty, sandy or heavily stained
Key specs
| Power | Corded, with a 20 min backup battery (company claim) |
|---|---|
| Suction (company claim) | 6.0 kg suction force |
| Spray | Ultrasonic mist, 40 ml tank |
| Noise (company claim) | 64 dB at 1 m |
| Safety rope (company claim) | Rated to 150 kgf |
| Min. window | 40 x 40 cm |
Maker figures are company claims.
What owners say
Owners like: One owner on salty coastal windows says it did a much better job than a weaker robot they returned and saved their back, though it was not perfect. Owners complain: Owners call it very loud, close to a robot vacuum, and say dusty or stained glass ends up streaky without a pre-wash. Too much cleaning liquid can make it slip. These owner threads are several years old.
Summarized from: r/smarthome: HOBOT 298 demo on salty windows · Roboter-Forum: HOBOT 298 very loud (German, owner thread)
3Best square-body alternative
HOBOT-2S
Best for: Owners who want HOBOT's square body with dual spray and an app
$299 at hobot.us, seen Oct 29, 2026In stock on hobot.us; list price $349.
The HOBOT-2S adds a second ultrasonic sprayer, edge sensors and app control to the 298 for $299 (list $349). HOBOT says the square body reaches further into corners than round pads (company claim). Owner reviews are rough, though: many Australian buyers report streaks, getting stuck under handles and poor support from a local distributor. Consider it only if you will pre-clean the glass and want the square shape.
Buy it if
- You want a square robot for framed windows
- You will pre-clean very dirty glass
- You want app control at a lower price than the Winbot
Skip it if
- You want results on dirty glass without a pre-wash
- You need to clean in a breeze (owners say the mist blows away)
- You want the best-reviewed option (get the Winbot W2S Omni)
Key specs
| Power | Corded, with a 20 min backup battery (company claim) |
|---|---|
| Spray | Dual ultrasonic, 2 x 26 ml tanks |
| Suction (company claim) | 6.0 kg suction force |
| Noise (company claim) | 64 dB at 1 m |
| Safety rope (company claim) | Rated to 150 kgf |
| Weight | 1.3 kg |
Maker figures are company claims.
What owners say
Owners like: A patient owner says it keeps large double-glazed windows clean once they are pre-cleaned and the pads and tracks are washed, and values not climbing a ladder. Owners complain: Many reviewers say it leaves streaks, removes dust but not fingerprints, gets wedged under door handles, needs constant watching, and that the mist blows off in a breeze. Several had refund disputes with an Australian distributor, not HOBOT's US store.
Summarized from: ProductReview.com.au: HOBOT 2S owner reviews
4Wired-only Winbot
Ecovacs Winbot W2S
Best for: Windows near an outlet, if it goes on sale
$399.99 at ecovacs.com, seen Oct 29, 2026In stock on ecovacs.com.
The W2S has the same edge scrubber, three-nozzle spray and app as the W2S Omni, but no cordless battery station; it runs on a 7.4 m power cable and a small backup battery (company claims). At $399.99 it costs only $7.56 less than the Omni, so the Omni is the better buy today. Owners who use the wired W2S say it cleans dirty tall glass well over several passes.
Buy it if
- It is on sale well below the W2S Omni
- All your windows are close to outlets
- You want a lighter box (3.1 kg of contents vs. 7.3 kg for the Omni)
Skip it if
- The W2S Omni is still within about $10
- You clean balconies or windows far from power
Key specs
| Power (company claim) | Wired, 7.4 m total cable, 30 min power-off hold |
|---|---|
| Suction (company claim) | 8,000 Pa max |
| Edge reach (company claim) | About 1.1 cm |
| Water tank | 80 ml |
| Weight | 1.95 kg |
Maker figures are company claims.
What owners say
Owners like: An owner with tall windows and glass railings says it did a very good job after about 40 runs and calls the long cord a plus. Owners complain: Corners keep a little dirt, it can get stuck on frameless railings, and it does not always return to where it started.
Summarized from: r/ecovacs: My Winbot W2S experience (good)
How do the picks compare side by side?
| Ecovacs Winbot W2S Omni | Best window robot for most people | $407.55 | 8,000 Pa max, 3,000 Pa while moving | 1.95 kg robot, 5.2 kg station | Cordless up to 110 min from the station battery, or wired |
|---|---|---|---|---|---|
| HOBOT-298 | Best under $200 | $199 | 6.0 kg suction force | Not listed | Not listed |
| HOBOT-2S | Best square-body alternative | $299 | 6.0 kg suction force | 1.3 kg | Not listed |
| Ecovacs Winbot W2S | Wired-only Winbot | $399.99 | 8,000 Pa max | 1.95 kg | Wired, 7.4 m total cable, 30 min power-off hold |
The Ecovacs Winbot W2S Omni is the window robot to get, and the HOBOT-298 is the one to try for under $200. The wired Winbot W2S only makes sense if it drops well below the Omni.
No affiliate links: price links on this page go to brand stores, and we earn nothing from them.
These picks are based on spec sheets, brand pages and owner reports; see our methodology. We have not tested them. Prices are from brand stores, seen Oct. 29, 2026.
What a window robot can and can't do
Owners and reviewers agree on the same point: a window robot is a maintenance tool, not a replacement for a deep clean. WIRED's reviewer found window robots slow and fussy, and owners say results get much better on glass that has been wiped once by hand.
Safety: rope, station and wind
Tie the safety rope to something solid inside before every run, especially on the outside of the glass. Don't run it in strong wind or rain. Stay nearby on the first runs; owners say robots can stick on handles, beveled trim and frameless edges.
Winbot or HOBOT?
The Winbot W2S Omni costs about twice as much as the HOBOT-298 but adds cordless running, edge scrubbing, a cable-winding station and newer owner reports that are mostly positive. HOBOT's robots are simpler, corded and cheaper; its owner feedback is older and more mixed.
Related: Robot vacuums and mops · Window and other robots hub
Frequently asked questions
Do window cleaning robots actually work?
For routine dust, rain spots and fingerprints on flat glass, owners say yes, especially on tall or hard-to-reach windows. They do not remove heavy grime, limescale or bird droppings well, so owners pre-clean very dirty glass and run more than one pass. Corners still need a quick wipe by hand.
Can a window robot fall off?
It can lose suction, which is why every pick here comes with a safety rope you tie off inside before you start. Ecovacs says the W2S Omni's rope holds up to 100 kg and its station weighs 11.46 lb, and HOBOT rates its rope at 150 kgf (company claims). Both brands say the robot stays on the glass for about 30 minutes (Ecovacs) or 20 minutes (HOBOT) after a power cut.
Can I use a window robot on the outside of the glass?
Yes, with the safety rope anchored inside and no strong wind. Owners say exterior runs work on flat glass, but handles, beveled trim and frameless railings can make the robot stick or lose suction. Watch it on the first runs.
Do window robots work on frameless glass and shower doors?
Ecovacs lists both framed and frameless glass for the Winbot W2S and W2S Omni, with a minimum window of 30 by 40 cm and glass at least 3 mm thick (company claims). An owner on frameless deck railings says the robot struggled and sometimes got stuck. HOBOT lists a minimum window of 40 by 40 cm.
What about the Winbot W2 Omni?
Ecovacs lists the older Winbot W2 Omni at $599.99 but showed it out of stock on Oct. 29, 2026. The W2S Omni costs less and is in stock, so we picked it instead.
Sources
- Ecovacs US store: Winbot W2S Omni (seen 2026-10-29)
- Ecovacs US store: Winbot W2S (seen 2026-10-29)
- HOBOT US store: HOBOT-2S (seen 2026-10-29)
- HOBOT US store: HOBOT-298 (seen 2026-10-29)
- WIRED: I tried a window-cleaning robot (seen 2026-10-29)
- r/ecovacs: My Winbot W2S experience (good) (seen 2026-10-29)
- r/ecovacs: I caved and followed the Winbot trend, early thoughts (seen 2026-10-29)
- r/ecovacs: Winbot W2 Pro/Omni, can you share your opinions? (seen 2026-10-29)
- r/homeautomation: Got a "roomba" for my windows (seen 2026-10-29)
- r/smarthome: HOBOT 298 demo on salty windows (seen 2026-10-29)
- Roboter-Forum: HOBOT 298 very loud (German, owner thread) (seen 2026-10-29)
- ProductReview.com.au: HOBOT 2S owner reviews (seen 2026-10-29)