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Philips Sonicare 9900 DiamondClean Prestige HX9992/11 - Electric Toothbrush

Reviews Philips Sonicare 9900 DiamondClean Prestige HX9992/11

Interested in reviews of Philips Sonicare 9900 DiamondClean Prestige HX9992/11? It got 4.7 out of 5 stars from our customers. Find specific customer reviews of Philips Sonicare 9900 DiamondClean Prestige HX9992/11 below. We will appreciate if you also share your experiences with Philips Sonicare 9900 DiamondClean Prestige HX9992/11 after purchasing.
305.90 €
In stock > 5 pcs
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User Reviews

Michaela, Praha 5flag
Rated 06/07/2025, variant Philips Sonicare 9900 DiamondClean Prestige Limited Edition Baby Blue HX9997/32
Verified purchase - review from a price comparison website
I am literally thrilled and immediately bought a second one for my daughter. Your teeth are cleaned in a way they never are with a regular toothbrush, polished, clean, and I have the impression that even tartar comes down over time. Of course, it does not completely clean the spaces between the teeth, but there are other tools for that. About the app, I've read comments that you have to keep looking at the app while cleaning, you don't have to! The app just teaches you how to clean, then you know how to do it and don't need to look at it. The toothbrush vibrates at each tooth segment after 30 sec to alert you to move on to the next one. And then it remembers your cleaning, so you can synchronise it at other times than when you're cleaning. So you don't have to keep looking at your mobile as some reviews say. I recommend him wherever I go, so I recommend him here as well: ) Plus, I love the pale blue pearl color.
Luxury teeth cleaning
Application
It looks beautiful
perhaps only that the modes can not be switched directly on the brush, but must be from the app
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Martin, Hradec Královéflag
Rated 24/06/2025, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/12
Verified purchase
I bought the tab again just because I have a lot of new heads at home and it was on sale.
USB-C in a travel case. If there was a USB-C connector on the Oral-B Io 10, I'd go for it. It's a much better card.
If the tab displays the "mode" of refreshment. So the user starts it. The rhyme finishes and instead of the tab switching off, the whole oral cleaning cycle starts automatically. It is not solved, not even by the latest firmware.
The first card of the same type went out 3 months after the warranty expired. For the price, the longevity is not much.
If this tab goes away again 3 months after the warranty, I'd rather buy some "no name" that has more utility value for the price.
Docking stations. tragedy. Orab B is much better.
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Petr, Želivecflag
Rated 15/05/2025, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/31
Verified purchase - review from a price comparison website
Super toothbrush
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Tomáš, Praha 8 - Kobylisyflag
Rated 09/05/2025, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/42
Verified purchase
I'm a bit disappointed that the OralB iO 10 is honestly a better equipped device and in some ways better thought out. I used to have a cheap OralB, but after that experience I chose Philips for two reasons: there are no stupid holes in the head of the toothbrush where saliva flows into and it can't be cleaned, and secondly because brushing is not just about physically scraping your teeth as I used to think. Philips suits me better.
I find sonic cleaning better than just "scraping" with OralB, and I honestly feel better about the cleaning.
BASIC: no holes in the brush head where saliva flows and stinks
On the outside, the toothbrush gives a better impression than the OralB iO 10
Background app sync. it doesn't sync, I don't know why. I have to do it by hand.
The app is pretty slow
Replacement heads are not cheap no
Compared to OralB iO 10 less equipped (display, clock puck)
Switching between modes requires an app
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Lenka, Vejprtyflag
Rated 02/04/2025, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/31
Verified purchase - review from a price comparison website
Purchased at a discounted price
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Jan, Prahaflag
Rated 08/02/2025, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/12
Verified purchase
If you can afford it, buy it. It's beautiful, functional, stackable. It is necessary to reckon with some shortcomings that this model suffers from.
beautiful design
smaller than its cheaper counterparts
beautiful case
the battery lasts (when cleaning twice a day) about 10-12 days, but after a few years max 8-10 days, which is kind of expected
the app is useless, I really prefer to set the cleaning modes directly on the brush than to constantly go to the app on the phone and change it there
after 3 years, the shaft responsible for vibration transmission loosened - it started to roar terribly and the head did not vibrate. A common problem with these brushes
the head does not fit into the housing with the cover on
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Pavel, Uherský Brod 1flag
Rated 07/01/2025, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/12
Verified purchase
Everything in order, satisfaction
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Dominik, Lázně Bělohradflag
Rated 06/01/2025, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/12
Verified purchase
Great toothbrush for everyday use
great toothbrush
super case
improvement in quality compared to older versions
when you are lazy to use interdental brushes, this helps you maintain your teeth better than a normal toothbrush
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Matej, Bratislava - Račaflag
Rated 27/12/2024, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/31
Verified purchase
Vydrz baterie
Výborne cisti zuby
Má 3 úrovne umývania zubov
Výborná cena(kupované v zľave)
Hlucnost
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Martin, Pardubice 21flag
Rated 26/12/2024, variant Philips Sonicare 9900 DiamondClean Prestige HX9992/12
Verified purchase
Compared to the previous top model (about 7 years old DiamondClean), there was only a slight shift forward with this premium model (if the battery hadn't gone, I wouldn't have had a reason to change). On the contrary, compared to the previous model, I am left with the fact that so many sticks are thrown under the feet of the user in the more modern version and that the use of the product is made very unpleasant! Like without the app on your mobile, you basically have a very basic model worth 1,500 CZK. So if you only want a toothbrush to clean your teeth, you only need one cleaning mode and you don't want to lug your mobile phone into the bathroom, then buy the cheapest model and save yourself the nerves and money.
The push button is part of the body - it's not separated with a gap around it, so it's easier to keep clean.
5 modes + 3 cleaning intensities, but... (in the minuses).
Smaller charging case than previous models.
Finally, USB-C.
Charging stand - horrible, cheap plastic verk that slides on the pad and the brush is unstable in it - just strum it and it's on the floor (with the previous model there was a heavy glass jar that held well).
The button is only used for switching on and off.
Changing the mode and intensity can only be done in the mobile app!
So if you brush your teeth on Clean mode and then want to polish them with White mode, you have to wipe your hands, run for your phone, connect to the toothbrush (usually on the second try), browse the settings and choose another mode. And then again.
What kind of a thinker thought that modes cannot be changed with a button as before?! Do we need a special single-purpose app for every stupid thing?
The application requires account registration!? And Android 10, for example, no longer supports it.
Of course, the data on the correctness of the cleaning in the app is just a placebo and cannot be relied on (some users praise the function, but do not realize that the brush and the app estimate the position only with the help of a gyroscope based on the tilt and movement of the machine) - so really indicative values. It's useless.
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