C65
Limited evidenceRead the findings →HUTT's corded window robot, scrubbing with two spinning round pads and spraying as it goes. It's pitched as an improved version of the older C6. Round pads can't reach square corners, so plan on wiping those by hand.
See the alternatives below, or switch market.
Where it sits in HUTT’s range
- C6Older round-pad model the C65 improves on
- C65This model
- A1HUTT's other window robot on this site
Feedback
What we know
HUTT's product page lists up to 3,800Pa of suction, an 80ml see-through tank and an 85mm slim body. The closest test is testen-mit-kopf.de's look at the older C6, which HUTT says the C65 improves on: clean, streak-free glass on regular use, but loud running and missed corners. The corners come down to the round-pad shape, which the C65 shares, so expect the same there.
testen-mit-kopf.de, hands-on, May 2022 (tested on the HUTT C6; Tests the older HUTT C6, not the C65)
What HUTT claims
HUTT lists up to 3,800Pa of suction, an 80ml see-through water tank, status checks every 0.04 seconds and a 25-minute hold if power runs low. It says the robot is 85mm slim and fits between window gaps, even on small windows, with a single button and a combined power cable and safety rope.
Round pads miss corners
HUTT's photos show the C65 moving on two round pads, like the older C6. testen-mit-kopf.de found the C6 couldn't reach into corners and edges the way square robots do. That comes down to shape, so expect the same from the C65 and plan on wiping corners by hand. If corners matter most, a square robot gets further into them.
What the C6 test found
testen-mit-kopf.de liked the C6's results on regularly cleaned windows, with no streaks apart from faint pad marks where it was lifted off. It held on to tiles and a sloping roof window, and measured 76 to 77dB while running, as loud as a vacuum. It couldn't shift bird or fly droppings.
What's not checked yet
The C65 itself hasn't been through a finished test, so it's not yet clear how much of the C6 result from testen-mit-kopf.de carries over. Still open: whether it cleans as well, whether HUTT's stability claims make it quieter or steadier than the C6, and whether the safety features HUTT lists, like the 25-minute hold, work as promised.
The one cited test covers the older HUTT C6 and is shown for context.
Our take
Should you buy the C65?
Best for: Large windows cleaned regularly, with a socket nearby. Skip it if: You want a stronger record in independent tests before buying.
Hold off until someone tests it. If you want a round-pad robot for big windows and roof glass, the older C6 did well in one German test, but the C65 itself is unproven. For a tested alternative, the HOBOT 2S or an Ecovacs WINBOT mini 2 have independent reviews behind them.
The C65 is one of HUTT's corded window robots. It moves on two round, spinning pads rather than a square body with tracks, sprays water or cleaning fluid from an 80ml tank, and holds on with up to 3,800Pa of suction. HUTT's Amazon listing calls it an improved version of the older C6, with the same features and more stable performance.
Round pads have a known drawback: they can't reach into square corners the way a square robot can. It also plugs into the wall, with a battery that only holds it on the glass for a while if the power goes, and you carry it from pane to pane.
HUTT also makes the A1, a separate model.
Where to buy
Where to buy the C65 in Australia
No verified retailer listed in Australia. Switch market above, or see the alternatives below.
Before you buy
The questions people ask about this one
What happens if the power cuts out?
HUTT claims a 25-minute hold on low power and a safety rope rated to 148kg, per the specifications. testen-mit-kopf.de found the older C6 held on for 20 to 30 minutes and sounded an alarm. Nobody has tested the C65's own backup.
Does it leave streaks or edges?
Not tested on the C65. testen-mit-kopf.de saw no streaks from the older C6 on regularly cleaned glass, apart from faint marks where it was lifted off, but its round pads missed the corners. Expect to wipe the corners by hand.
Do I need a special cleaning fluid?
HUTT's page doesn't say. testen-mit-kopf.de filled the older C6's tank with water or a mild cleaner and got better results with the cleaner. The C65 has an 80ml tank, per the specifications.
Can it clean roof windows?
We don't know for the C65. testen-mit-kopf.de ran the older C6 on a sloping roof window and on tiled walls without it falling, but HUTT's C65 page doesn't mention roof windows.
Alternatives
Other window-cleaning robots to compare.

2S
Why consider it: An owner found it made hard-to-reach apartment glass much clearer.
The compromise: Water marks stayed put, and the owner sometimes had to fetch it by hand after it stopped.

WINBOT mini 2
Why consider it: A compact square robot whose corner brushes aim to reach the frame.
The compromise: It's also mains-powered and loud, and you stand beside it while it works.
Specs
Full specifications
Each specification names its source. Manufacturer claims are not independent test results; unconfirmed figures are labelled.
Owner reviews
Do you own the C65?
Tell people how it’s held up: cleaning, maintenance, faults and support. Owner accounts are shown separately from independent reviews.
Sources
Where this page’s findings come from
Editorial reviews
- testen-mit-kopf.de: HUTT C6 Fensterputzroboter Test ↗3.5 / 5Hands-on · Tested on the HUTT C6 · Tests the older HUTT C6, not the C65 (not counted towards our two-review minimum)
Sources
- Amazon.de: HUTT C65 Window Cleaning Robot listing ↗Retailer
- HUTT: HUTT C65 product page ↗Manufacturer
Videos
- Search YouTube for HUTT C65 ↗Search results may include company demonstrations or similar models. Check the source and model name; a demonstration is not an independent performance test.
