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Philips Sonicare 9000 DiamondClean HX9911/84 - Electric Toothbrush

Reviews Philips Sonicare 9000 DiamondClean HX9911/84

Interested in reviews of Philips Sonicare 9000 DiamondClean HX9911/84? It got 4.8 out of 5 stars from our customers. Find specific customer reviews of Philips Sonicare 9000 DiamondClean HX9911/84 below. We will appreciate if you also share your experiences with Philips Sonicare 9000 DiamondClean HX9911/84 after purchasing.
199.90 €
In stock > 5 pcs
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User Reviews

Nikola, Ústí nad Labemflag
Rated 03/12/2023, variant Philips Sonicare 9000 DiamondClean HX9911/84
Verified purchase
Bought as a replacement for the first toothbrush which lasted 9 years. So satisfied.
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Michal, Praha 18 Letňanyflag
Rated 19/11/2023, variant Philips Sonicare 9000 DiamondClean HX9911/84
Verified purchase
Good price/performance ratio
Perfect cleaning
Motivation to brush your teeth really regularly
Long battery life on a single charge
More expensive replacement heads
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Jan, Praha 15 Hostivarflag
Rated 29/08/2026, variant Philips Sonicare 9000 DiamondClean HX9911/88
Verified purchase
I've been using Philips Sonicare for several years now, and for me, it's probably the best toothbrush compared to the competition. I can't recommend it enough. The only problem I see is that with the DiamondClean, you get an induction charger with a sort of plastic cup, so it's not compatible with the non-DiamondClean travel charger that has the pin. Personally, this really bothers me. For travelling, you just take the charging pin and put it on, whereas the DiamondClean doesn't have the option to use the charger for the non-DiamondClean version. Be aware of this.
I don't have to go for a dental hygiene appointment
Philips knows how to do this.
A normal toothbrush won't get your teeth this smooth.
compared to the non-diamond versions, the charger is quite awkward
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Zdeňka, Roztokyflag
Rated 28/08/2026, variant Philips Sonicare 9000 DiamondClean HX9911/79
Verified purchase - review from a price comparison website
I recommend
Quality toothbrush
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Marcela, Brnoflag
Rated 28/08/2026, variant Philips Sonicare 9000 DiamondClean HX9911/88
Verified purchase
The sonic toothbrush from Philips is just brilliant, you won't want another. Just two days on a business trip, travelling light with a regular toothbrush, and you can really tell the difference. After coming home to the Philips, my teeth are happy and I feel great and fresh. I can't imagine going on holiday without it!
Good battery life from a single charge, used at least 3-4 times a day.
Unfortunately, this is the second time I've had to make a complaint. After a few months, the buttons for selecting the cleaning mode and intensity froze, so the brush could only be switched on/off. It's a great shame for such a fantastic product; this recurring fault is ruining the Philips brand's reputation. Hopefully, the second complaint will be resolved to my satisfaction soon. For the first complaint, Alza exchanged it for a completely new package without any fuss! Although I'm listing it under minuses here, I rate that as a plus :-)!
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Stanislav, Poděbradyflag
Rated 20/07/2026, variant Philips Sonicare 9000 DiamondClean HX9911/88
Verified purchase - review from a price comparison website
I’d recommend both this one and Philips, but the price and durability just don’t go hand in hand. That’s a big problem.
Design
It still works with the glass and case from the set I bought five years ago.
It lasts a whole week with daily use.
Price
The maximum service life of the mechanism is two and a half years. It’s worth registering on Philips.cz to get an extra year’s warranty.
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Michal, Luby u Chebuflag
Rated 09/06/2026, variant Philips Sonicare 9000 DiamondClean HX9911/88
Verified purchase - review from a price comparison website
It's okay.
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Jana, Praha 6 - Vokoviceflag
Rated 28/04/2026, variant Philips Sonicare 9000 DiamondClean HX9911/79
Verified purchase - review from a price comparison website
Quality toothbrush
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Customer, Brnoflag
Rated 22/03/2026, variant Philips Sonicare 9000 DiamondClean HX9911/79
Verified purchase - review from a price comparison website
Super
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Radovan, Brno - Nový Lískovecflag
Rated 11/03/2026, variant Philips Sonicare 9000 DiamondClean HX9911/88
Verified purchase - review from a price comparison website
The toothbrush itself works great, it's easy to use. I'm deducting a point for lack of documentation. The instructions are just a small piece of paper with some little words, which I sometimes had trouble deciphering. However, a thick booklet was enclosed with a declaration of conformity in Turkish and other languages even more distant to us. I finally downloaded the instructions from the internet. I was unable to install the Philips sonicare app. It says "not compatible with this version", by which I guess it means with the version of Android on my phone.
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