Tineco Floor One S9 Master Review: Equally Good at Mopping Floors and Cleaning Its Brush

With the Floor One S9 Master, Tineco promises a more effective wash and fewer streaks, thanks to hot water and a new streak-free squeegee. After several days of use, it’s also the cleaning of its own brush that convinced me.

Tineco continues to enlarge its family of floor-washing vacuum cleaners, to the point where it can be challenging to distinguish the different references. After a particularly convincing S9 Artist and a S9 Scientist whose water jet left me a bit unsatisfied, here is the Floor One S9 Master.

On the agenda: suction announced at 25,000 Pa, washing with hot water, a StreakFree squeegee to limit traces, and a dock capable of cleaning and then drying the roller in a few minutes. Promising prospects for a device whose French shop lists a reference price of 699 euros, before discount.

I used this S9 Master on all floors of my home for daily cleaning. It’s a good test to see whether this new master of washing deserves its name.

Test conducted on a unit loaned by the manufacturer.

Design and Ergonomics: It Grows on You, but It Isn’t as Easy to Stow

The Floor One S9 Master adopts a sober look, finished in glossy black with fairly conventional lines. It doesn’t shout as much as the S9 Artist, whose design I appreciated for its attention to detail. The plastics feel slightly less premium to the touch as well, but the build quality remains solid.

Tineco lists the weight at 5.1 kg. On the floor, the motorized wheels counterbalance this mass effectively: the unit glides with the movement, changing direction feels natural, and long cleaning sessions don’t become a workout. The parking position also lets you stand it up while moving obstacles aside.

That’s a welcome detail after the S9 Scientist, whose nearly 6 kg made it a bit unwieldy. The Master is pleasant to maneuver, even if its assistance obviously doesn’t change when you have to carry it between floors.

The unit can be laid flat to clean under furniture, with a thickness stated at 9.9 cm. That doesn’t automatically open every door: in my use, the head remained too thick to reach the very low gaps. Before trusting it to reach under a sofa, it’s best to check available space.

The dock forces you to lift the vacuum completely to reposition it on its base. It’s not too bothersome the first time. When this gesture returns after each cleaning, you end up finding the operation somewhat tedious.

The color LCD screen is easy to read and displays the essential information: remaining battery, selected mode, and maintenance alerts. The buttons are accessible and also allow you to adjust spoken announcements, change language, or mute the sound. All of this is managed directly on the device, with no mobile app to install.

Suction: Auto Mode Does the Heavy Lifting

With a maximum suction stated at 25,000 Pa, the S9 Master has plenty to offer on its technical sheet. The results follow: dust and hair are collected properly, and liquids are recovered effectively.

Auto mode more than suffices for routine maintenance. I didn’t need to always push it to maximum to keep the floor clean. You start it and move forward, without needing to adjust settings in every room.

Washing the Floors: A Convincing Squeegee, Hot Water Less Decisive

Cleaning is one of the S9 Master’s strong points. Fresh solution is quickly removed and stains from coffee or sauces disappear after a few persistent passes. The washing is uniform and residual traces are few.

Tineco highlights its StreakFree squeegee to limit water residue. It’s hard to isolate its role from that of the roller and the suction, but the overall result is very good: the floor retains a uniform appearance after drying. Reintroducing the mop to fix a passage would have limited value.

The Heat mode leaves me wanting more. It heats the water used for floor washing, but I did not notice a sufficiently clear difference with Auto to treat it as a must-use. On the stains I tested, traditional washing was already very effective.

The ThermoBlast spray is controlled separately by a dedicated button. It shoots hot water under pressure in front of the head, with a maximum of ten seconds per spray.

During early tests, I found the addition somewhat anecdotal: on a single stain, the jet didn’t transform the result. Its value appeared during longer cleans when the roller tended to lose moisture. An extra moisture boost then allowed re-wetting the area and continuing more effectively.

So the nozzle is useful, but it also compensates for a limitation encountered during use. I would have preferred that automatic supply maintain sufficient humidity without manual intervention. The Auto mode cleans very well overall; it did not completely spare me from intervening on this point.

Autonomy and Reservoirs: A Comfortable Margin for My Cleaning Sessions

Tineco claims up to 65 minutes of autonomy. In my tests, cleaning one floor used a little less than half the battery. This left a comfortable reserve to continue, without constantly watching the remaining percentage.

This result does not confirm the full 65 minutes or establish a maximum area. In my real-world sessions, the battery did not pose a problem.

The reservoirs hold 850 ml of clean water and up to 700 ml of dirty water. This latter limit drops to 500 ml when the unit is used flat, which is worth keeping in mind before sliding under furniture.

In practice, I did not feel compelled to constantly interrupt the cleaning to refill or empty either tank. Their transparent design also makes it easy to monitor levels, in addition to the device’s alerts.

The manual lists four to five hours for a full recharge. The device recharges mainly between sessions; a completely depleted battery will not recharge in the time it takes to move chairs around.

Maintenance: The Roller Comes Clean, and That Changes Everything

Once the floor is washed, there’s usually a task you’d prefer to skip: cleaning what you just cleaned with. On this point, the S9 Master is particularly convincing.

During my tests, the full quick cycle, including cleaning and drying, took about five minutes. The roller comes out clean, dry, and ready to go again. The result is impressive and is one of the strongest selling points of this device.

The speed comes at a cost in terms of noise. The quieter program takes around forty minutes, but it achieves a similarly convincing result. So the choice is simple: a few minutes at a noticeable volume or more patience. While washing floors, the noise remains modest and didn’t feel especially aggressive to me.

As with the S9 Artist, automated maintenance remains a real strength. The benefit is appreciable after each use.

The dock does not replace the need to empty and rinse the dirty-water tank. Fortunately, the separation between liquids, debris, and hair is very well done. It makes disposal easy and prevents you from fishing out dirt from a mixed sludge mixture.

The filter and removable parts also require their standard maintenance, as the S9 Master manual reminds. The dock mainly eases the work on the roller, and it does it well enough to make you glad to leave that chore to the machine.

Tineco Floor One S9 Master: Clubic’s Verdict