HUTT H10 vs Tosima WA9C Pro

HUTT H10 vs Tosima WA9C Pro at a glance

Head to head

The best result in each row is marked, based on my testing and the manufacturer specs. Where the robots tie, both are marked.

The tally is a guide, not my verdict. Whether streaks or corners bother you more matters more than any single row.

Round-square vs square

These two robots attack glass in different ways.

The HUTT H10 is a round-square✕Round-square designA window robot with a round spinning pad and a square pad side by side. The round pad scrubs wet; the square pad follows and polishes dry. robot. Its round pad spins at 70 RPM to scrub wet, the square pad polishes dry behind it, and a 3D suspension✕3D suspensionA floating mount that keeps the pad pressed evenly to the glass. On the HUTT H10 it holds a constant 55 N, about 12.3 lb. keeps a constant 55 N on the glass.

The Tosima WA9C Pro is a square crawler with damp mops underneath and four nozzles, two per side. You choose an N or Z route✕N and Z routesTwo cleaning patterns. N runs vertical lanes for tall windows; Z runs horizontal lanes for wide ones. on its remote.

Our tip: Ask yourself whether streaks or corners bother you more, because that single question picks between these two.

Size, build and what is in the box

The HUTT H10 weighs about 1.3 kg, or 2.9 lb, and cleans glass from about 12 by 12 inches. The Tosima is about 8 by 8 by 3.5 inches and about 6 lb in its box.

The HUTT comes with a remote, a safety rope rated to 220 kg, a spray bottle, six spare nozzles, three pairs of pads and an adapter. It includes no solution, and HUTT recommends purified water.

The Tosima comes with a remote, four mops, a safety rope, a water bottle, replacement nozzles and an unclogging needle kit. Neither includes a storage case.

The Tosima WA9C Pro runs from a voice remote.

Setup and the first week

Both were ready in about 2 minutes per session. On the HUTT that included wiping the drive tracks dry, and on the Tosima filling the tank and fitting a mop flat.

Both had a rough first week. The HUTT scored 7.2 while early drifting taught me to keep its tracks dry. The Tosima scored 6.8 after hard tap water weakened one nozzle, which I fixed with the needle kit.

By week two both had settled: the HUTT jumped to 8.6 and the Tosima to 7.8.

Our tip: Use filtered or purified water in both from the first day, because hard tap water clogged the Tosima within a week.

Grip and safety

The HUTT H10 grips with up to 6,500 Pa✕Pa, or pascalsThe unit for suction. A higher number means the robot presses itself to the glass harder. from a brushless motor. The Tosima is rated at 2,600 to 3,200 Pa of adsorption force.

Neither came off the glass, but the HUTT scored 8.6 for safety and the Tosima 7.6. On outside upstairs glass, I wanted the HUTT’s grip.

Both hold on if the power fails: up to 30 minutes on the HUTT and about 25 on the Tosima’s 500 mAh battery, with sound and light alerts.

Rated suction

Manufacturer figures.

My safety scores

Scores out of 10.

Either robot beats a ladder for upstairs outside glass. The U.S. Consumer Product Safety Commission has reported more than 164,000 emergency room-treated injuries a year related to ladders.

How well they clean

The HUTT H10 was the better cleaner on almost every kind of dirt. It scored 9.2 on indoor dust and pollen and 9.0 on fingerprints, against 8.6 and 8.4 for the Tosima.

Rain spots scored 7.8 on the HUTT and 7.4 indoors, 7.0 outdoors on the Tosima. On months of outside grime, it was 6.4 against 5.8, and on road film 6.4 against 5.4.

Neither is a restorer, but the HUTT got noticeably closer.

Cleaning scores

My overall cleaning scores out of 10.

Our tip: Clean neglected outside glass by hand once, then keep it up with the robot, because neither scored above 6.4 on months of grime.

Streaks and the finish in sunlight

The HUTT’s dry-polish pad is its big advantage. Even with low winter sun shining straight through, I saw very few streaks.

The Tosima’s finish depended on its spray setting. Regular spray on inside glass scored 8.6, but large spray inside left streaks. Outside, large spray on dusty glass scored 8.2 and regular 7.0.

On the HUTT, the thing to watch was moisture. A damp square pad smeared instead of polishing, and damp tracks made it drift.

Tosima: spray setting vs result

My scores out of 10.

HUTT H10: what caused drifting

From my notes.

Our tip: Keep the HUTT’s round pad damp and its square pad completely dry, because that is what makes its finish streak-free.

Edges and corners

This is the Tosima’s win. Its square body drove right into the corners and scored 7.6, leaving only thin slivers. The HUTT scored 7.0, also with thin slivers.

Along the frames, both scored 8.2. In the center of the glass, the HUTT led, 9.4 against 8.8.

On frameless glass, both did well. The HUTT scored 8.8 on frameless edges, and the Tosima’s bottom drop sensor turned it before it left the edge.

Corners

My scores out of 10.

The Tosima’s square body reached furthest into corners.

Mirrors, shower glass and kitchens

The HUTT was the clear choice indoors. It scored 9.2 on a single mirror, 8.6 on a frameless shower screen, 7.6 on soap film, 8.6 on kitchen grease film and 8.8 on water splashes.

The Tosima scored 9.0 on a bathroom mirror, 7.8 in the mirror corners, 6.8 on soap film and 7.2 on kitchen grease.

A divided mirror with a narrow gap stopped the HUTT at the gap, so I cleaned it one section at a time.

Our tip: Let bathroom steam clear before starting either robot, because a damp square pad on the HUTT cannot polish.

Water, tanks and nozzles

Water was a recurring theme with both. With hard tap water, one of the Tosima’s four nozzles weakened within a week. With filtered or distilled water, all four stayed clear for the rest of the test.

HUTT includes no cleaning solution and recommends purified water. Its 80 ml visible tank is rated for about 646 sq ft per refill, and my ground floor, both sides, used about half a tank.

The U.S. Geological Survey classes water above 120 mg/L of calcium carbonate as hard. If your kettle scales up, plan on filtered water for either robot.

Our tip: Empty the Tosima’s tank after every session and run a few seconds of clean water through it, because standing water leaves deposits in the nozzles.

Outside glass

Outside, the HUTT kept its lead. It scored 9.0 on pollen and dust, 7.8 on rain spots and 6.4 on road film, against 8.4, 7.0 and 5.4 for the Tosima.

The Tosima did better with large spray outside, 8.2 on dusty glass against 7.0 on regular spray. Bird droppings needed hand cleaning first on both.

Shade mattered on both. Hot direct sun dried the mist before the pad reached it and left faint marks.

Outside rain spots

My scores out of 10.

Our tip: Clean outside glass on an overcast morning, because full sun dried the mist too fast on both robots.

Robot or cleaning by hand?

Both robots took my hands-on time per session down to about 2 minutes of setup and 2 to 3 minutes of rinsing. By hand, a room of windows took me about 20 minutes.

The bigger win was upstairs outside glass, cleaned from inside the room with the rope anchored.

Little and often worked best. Dust and pollen scored 8.4 to 9.2 on both robots, while months of grime scored 5.8 to 6.4.

Hands-on time per session

My own timings.

Speed, routes and controls

The Tosima was the faster of the two. As a square crawler, it moved across big panes quicker than the HUTT, which I rated moderate. HUTT claims under 3 minutes per square meter.

The Tosima’s six modes include N routes for tall windows, Z routes for wide ones and manual steering, and choosing the right route made it noticeably quicker. Its remote has voice prompts in several languages.

The HUTT offers a full clean, a targeted deep clean and remote steering, with NAVI 7.0 mapping and 14 sensors.

Relative speed on a big door

My relative timings.

Noise, pets and family life

HUTT rates the H10 as low as 65 dB, between normal conversation at about 60 dB and a vacuum at 75 to 80 dB. The Tosima sounded similar to my ear.

Both are audible in the same room and fade one room away. The Tosima’s voice prompts were clear over its fan.

With a power cord and a rope each, I ran both lines along the wall and away from pets.

How loud is it?

Manufacturer figure for the HUTT; others are typical reference levels.

A whole-floor day with each

Both robots got a full floor in week four, and both took about 25 minutes of my own time.

The HUTT H10 cleaned five glass areas with 3 round pads and 3 square pads. I wiped the tracks before each window, swapped in a dry square pad for the last window and rinsed pads for about 3 minutes.

The Tosima cleaned six glass areas. I swapped mops twice, refilled the tank once, emptied it at the end in about 30 seconds and rinsed mops for about 2 minutes. Mops lasted about three windows indoors and two outdoors.

Cleaning and maintaining them

The HUTT needs its tracks wiped dry before each session, pads rinsed after and sensors wiped weekly. I checked its rope before any high glass and would replace a frayed one immediately.

The Tosima needs its mops rinsed, its tank emptied after every session and clean water run through before storage. The needle kit handles any clog.

Neither comes with a storage case.

Our tip: Fit the Tosima’s mop flat with no folded edge, because a fold left a stripe along every lane.

Mistakes to avoid

Each robot has its own trap.

My four weeks, week by week

Week one: inside glass. The HUTT scored 7.2 while I learned the dry-tracks routine, and the Tosima 6.8 after a nozzle clogged.

Week two: the HUTT jumped to 8.6 on a mirror and frameless shower screen. The Tosima rose to 7.8 on filtered water, starting outside doors with a clean start spot.

Week three: outside glass. The HUTT scored 8.4 with the rope anchored, and the Tosima 8.2 with clean corners and no more clogs.

Week four: routine use. The HUTT finished at 8.8 with streak-free results in low sun, and the Tosima at 8.4.

Week four satisfaction

My weekly scores out of 10.

Real-life scenarios

These are the moments during testing where one robot clearly pulled ahead.

For mirrors, shower glass and the fewest streaks, the HUTT H10 is the pick.

Which glass and homes suit each

The HUTT suited homes with frameless mirrors, shower screens and panes from about 12 by 12 inches, and anyone bothered by streaks. It is less suited to glass split by narrow gaps or raised strips, where it stops or turns.

The Tosima suited rectangular windows and sliding doors where corners show. It is less suited to gritty outside glass, high outside windows and hard-water homes without a filter.

Neither suits windows far from an outlet.

My scorecard

These are my own scores out of 10, from my single reviews of each robot after four weeks of daily use.

Overall scores

My overall editorial scores out of 10.

The HUTT H10 wins because it cleans better, leaves fewer streaks and grips harder. The Tosima’s strengths are corners and speed on rectangular glass.

Which one should you buy?

Start with streaks or corners.

If streaks in sunlight bother you, or you clean mirrors, shower screens and upstairs glass, buy the HUTT H10. If you mostly clean rectangular windows and doors and corners matter most, the Tosima WA9C Pro is the better fit.

For everything I found, see my HUTT H10 review and Tosima WA9C Pro review, or my HUTT vs ECOVACS Winbot and Tosima WA9C Pro vs HIXZAP X1 PRO comparisons.

Living with them long term

The HUTT needs dry tracks and pads rinsed every session. The Tosima needs filtered water and its tank emptied every session.

What I would change: more speed and a storage case on the HUTT, and more suction on the Tosima.

For corners on rectangular glass, the Tosima is a solid choice.

HUTT H10 vs Tosima WA9C Pro specifications

From manufacturer specifications and my own testing.

How I tested and compared them

I used each robot as my main window cleaner for four weeks, on mirrors, a frameless shower screen, kitchen windows, sliding doors and outside glass. A second HouseholdMe tester shared the robots, and we wrote the notes together.

I scored both on similar glass, tested spray settings and water types, tested power loss and timed every setup, session and cleanup.

I then checked my notes against both manufacturers’ specifications and owner documentation.

• Cleaning: dust, fingerprints, rain spots and months of outside grime.
• Edges: frames, inside corners and frameless edges.
• Safety: suction hold, power-loss behavior and the safety rope.
• Ownership: setup, pads, refills, storage and noise.