Tosima WA9C Pro vs HIXZAP X1 PRO

Tosima WA9C Pro vs HIXZAP X1 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 corners or grip matter more to you outweighs any single row.

Square vs dual round pads

Both of these robots skip the app, and both are corded with a backup battery. The difference is the shape of what touches the glass.

The Tosima WA9C Pro is a square crawler✕Square crawlerA flat, square robot that drives on tracks with a mop underneath. The square shape reaches closer to straight edges and into corners. with damp mops 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.

The HIXZAP X1 PRO is a dual-pad robot✕Dual-pad robotA window robot with two round microfiber pads that spin against the glass. The spinning both scrubs and moves the robot.. Its two spinning pads scrub as they walk it along an S-shaped path, top to bottom.

Our tip: Look at your corners in the sun before choosing, because the shape of these robots decides how much of each corner they reach.

Size and what is in the box

The Tosima is about 8 by 8 by 3.5 inches and about 6 lb in its box. The X1 PRO is wider, with two pads side by side, and needs glass of at least about 12 by 12 inches. It works on glass from 3 mm thick.

The X1 PRO’s box is generous: a remote, a safety cable, a 24 V adapter and cord, 20 reusable pads and a water bottle.

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

The Tosima’s square body is built to reach into corners.

Setup and the first week

Both took about 2 minutes per session: fill the tank, fit the mop or pads, tie the rope or cable, plug in and press start on the remote.

On the X1 PRO, both pads had to be centered or it pulled into a crooked line. On the Tosima, the mop had to sit flat, or a folded edge left stripes.

Week one went to the X1 PRO, 7.4 against 6.8. The Tosima’s low start came from hard tap water clogging one nozzle within a week.

Our tip: Use filtered or distilled water in both from the start, because hard tap water clogged the Tosima and dropped the X1 PRO’s score to 6.8.

Grip and safety

The X1 PRO grips with up to 7,200 Pa✕Pa, or pascalsThe unit for suction. A higher number means the robot presses itself to the glass harder.. The Tosima is rated at 2,600 to 3,200 Pa.

Neither came off the glass, but the X1 PRO scored 8.3 for safety and the Tosima 7.6. On upstairs outside glass, I preferred the X1 PRO.

Both hold on for about 25 minutes if the power fails. The X1 PRO adds live suction monitoring that beeps the moment a seal starts to break. When I cut its power mid-clean, it stopped, kept its fan running, beeped and was still attached ten minutes later.

Rated suction

Manufacturer figures.

My safety scores

Scores out of 10.

For upstairs outside glass, either robot beats a ladder. 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

On everyday dirt, the X1 PRO was slightly ahead. It scored 8.8 on dust and pollen and 8.6 on fingerprints, against 8.6 and 8.4 for the Tosima.

Kitchen grease film was a clearer win for the spinning pads: 8.2 to 8.4 on the X1 PRO against 7.2 on the Tosima. On bathroom mirrors, both scored 9.0 in the center.

On months of outside grime, the X1 PRO scored 6.0 in one pass and 7.2 on years of grime after two passes. The Tosima scored 5.8, and 5.4 on road film.

Cleaning scores

My overall cleaning scores out of 10.

Our tip: Plan two passes and fresh pads for neglected outside glass on either robot, because one pass left a haze.

Edges and corners: the big difference

This is where the shapes matter. The Tosima’s square body drove into corners and scored 7.6, leaving only thin slivers. The X1 PRO’s round pads cannot reach into a square corner and left curved patches, scoring 4.2.

Along the frames, the Tosima led too, 8.2 against 7.2. In the center of the glass, the X1 PRO was slightly ahead, 9.0 against 8.8.

Mirrors told the same story: 7.8 in the corners on the Tosima and 4.0 on the X1 PRO.

Corners

My scores out of 10.

The X1 PRO’s round pads leave curved patches in square corners.

Our tip: Wipe the X1 PRO’s corners while the glass is still damp, because it takes about 15 seconds a window and finishes the job.

Outside glass

Outside, the X1 PRO’s grip and scrubbing pads gave it the edge. With strong spray and fresh pads, it scored 8.8 on pollen and dust and 7.4 on rain spots, and reached 7.2 on years of grime after two passes.

The Tosima scored 8.4 on pollen and dust, 7.0 on rain spots and 5.4 on road film. Bird droppings needed hand cleaning first on both.

On both, I cleaned outside glass in the shade, because direct sun dried the mist before the pads reached it.

Outside rain spots

My scores out of 10.

Spray settings and water

Both robots let you choose how much water to spray, and both punished the wrong choice.

On the Tosima, regular spray on inside glass scored 8.6, large spray inside left streaks, large spray on dusty outside glass scored 8.2 and regular outside 7.0. The X1 PRO followed the same pattern: light inside 8.8, strong inside streaky, strong outside 8.6, light outside 7.0.

Water mattered as much. Hard tap water weakened a Tosima nozzle within a week, and on the X1 PRO, hard tap water scored 6.8 against 8.6 for filtered and 8.8 for filtered with a drop of non-foaming cleaner.

The U.S. Geological Survey classes water above 120 mg/L of calcium carbonate as hard. Those minerals dry into spots and block fine nozzles.

Our tip: Use the low spray setting indoors and the high setting outdoors on both robots, because too much water on clean glass streaked every time.

Pads, mops and tanks

The X1 PRO comes with 20 pads, which made swapping every two windows easy. A fresh pair left clear glass, after two windows I saw slight swirls and after four visible ones.

The Tosima’s four mops lasted about three windows indoors and two outdoors. I fitted each one flat, because a folded edge left a stripe.

The X1 PRO’s 85 ml tank is visible and rarely needed a refill. On the Tosima, I emptied the tank after every session and ran clean water through to keep minerals out of the nozzles.

X1 PRO pad wear

What I saw on the glass.

Routes, remotes and modes

Both remotes do everything, and I never missed an app on either.

The Tosima’s remote picks N routes for tall windows, Z routes for wide ones or manual steering across six modes, and it talks back in several languages. Matching the route to the window made it noticeably quicker.

The X1 PRO’s remote sets light or strong spray, full clean on its S-path, spot clean or manual steering. When it finishes, it stops and beeps.

Which windows and glass suit each

The Tosima suited rectangular windows and sliding doors where corners matter, especially on the ground floor.

The X1 PRO suited second- and third-floor windows, large sliding doors and balcony glass. A balcony, both sides, took about 30 minutes, and every pane came out clear with a quick corner wipe.

Neither suits gritty outside glass in one pass or windows far from an outlet, and the X1 PRO skips glass under about 12 by 12 inches.

Noise, pets and family life

Both robots are audible in the same room and fade one room away. The X1 PRO was the busier-sounding of the two, with its fan and spinning pads, and less refined than premium robots.

The Tosima’s voice prompts carried clearly over its fan.

My cat watched the X1 PRO’s spinning pads for a day, then lost interest. On both, I ran the cord and the safety line along the wall.

A cleaning day with each

The Tosima cleaned six glass areas on one floor in about 25 minutes of my own time. I swapped mops twice, refilled the tank once and emptied it at the end.

The X1 PRO did a whole-house day in about 40 minutes of my time. Light spray indoors, strong outdoors, pads swapped every two windows and a stack soaked the night before.

The living room slider came out clear in one light pass on the X1 PRO, and the deck door needed two strong passes for rain spots.

Cleaning and maintaining them

The Tosima needs its mops rinsed, about 2 minutes, its tank emptied after every session and clean water run through before storage. The needle kit fixes a clogged nozzle.

The X1 PRO needs its pads rinsed, about 3 minutes, or washed on a gentle machine cycle without fabric softener. I wiped its edge sensors weekly and checked its nozzles monthly.

Neither has a storage case. A lidded tub kept each kit together.

Our tip: Keep the power cord and safety line on opposite sides of the window, because twisted lines pulled both robots off their routes.

Mistakes to avoid

Both remote robots share some traps.

My four weeks, week by week

Week one: inside glass. The X1 PRO scored 7.4 while I learned its remote, and the Tosima 6.8 after a nozzle clogged with hard water.

Week two: the X1 PRO reached 8.2 on upstairs outside windows with its cable anchored and backup tested. The Tosima rose to 7.8 on filtered water.

Week three: the X1 PRO scored 7.8 on a full house day as I settled a pad rotation, and the Tosima 8.2 with clean corners and no more clogs.

Week four: routine use. The Tosima finished at 8.4 and the X1 PRO at 8.2.

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 corners on rectangular glass, the Tosima is the pick.

Robot or cleaning by hand?

For regular upkeep, both robots were worth it to me. By hand, a room of windows took about 20 minutes, and with either robot my own time was a couple of minutes of setup and 2 to 3 minutes of rinsing.

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

Neither is a restorer. On months of grime, both scored 5.8 to 6.0 in one pass, so clean neglected glass by hand once and let the robot keep it that way.

Hands-on time per session

My own timings.

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

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.

A tie overall, with clear strengths on each side. The X1 PRO grips harder, scrubs harder and is safer on high glass. The Tosima cleans far deeper into corners.

Which one should you buy?

Start with corners or height.

If corners matter most and your glass is mostly rectangular and on the ground floor, buy the Tosima WA9C Pro. If you clean upstairs, outside or balcony glass, buy the HIXZAP X1 PRO.

For everything I found, see my Tosima WA9C Pro review and HIXZAP X1 PRO review, or my best budget window robot comparison, which adds the WINBOT MINI 2.

Living with them long term

The Tosima needs filtered water and its tank emptied every session. The X1 PRO needs pad rotation and a quick corner wipe.

What I would change: more suction on the Tosima, better corners on the X1 PRO and a storage case for both.

For upstairs and outside glass, the X1 PRO is the one to get.

Tosima WA9C Pro vs HIXZAP X1 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 rectangular windows, mirrors, kitchen windows, sliding doors, a balcony and upstairs 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, cut the power mid-run 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.