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Philips Sonicare DiamondClean Prestige 9900 - Sonic Electric Toothbrush with 1x A3 Premium All-in-One Brush Head and Charging Case in Midnight Blue (Model HX9992/12)

4.2 4.2 out of 5 stars 296 ratings

£299.99 with 45 percent savings
RRP: £549.99

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Purchase options and add-ons

Brand PHILIPS
Age range (description) Adult
Special feature Pressure Sensor
Power source Battery Powered
Item firmness description Medium
Colour Midnight Blue
Material feature Sustainable
Number of items 1
Toothbrush Head Shape Rectangle
Unit count 1.0 count

About this item

  • SenseIQ technology: Philips Sonicare 9900 Prestige with SenseIQ technology senses pressure, motion, coverage and more, up to 100 times per second, it then adapts the intensity if you push too hard
  • Sonicare Technology: Philips Sonicare technology pulses water between your teeth while brushing helping to breakdown plaque for an exceptional daily clean
  • Same brushing, now 20x more effective: Up to 20x more plaque removal even in hard-to-reach areas*, 15x healthier gums in just two weeks**, and 100 percent less stains in less than two days***
  • Personalized guidance: The Philips Sonicare app provides progress reports by day, week and month, get personalized recommendations and actionable steps for better brushing
  • Set includes: 1 x DiamondClean Prestige 9900 toothbrush handle in Midnight Blue, 1 x A3 Premium All-in-One Brush head in black, 1 x Prestige USB charging case in Midnight Blue, 1 x Charger base, 1 x USB lead and wall adapter
  • Contains UK 2-Pin bathroom plug for use in bathrooms

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Important information

Directions:

Charge the toothbrush, wet the brush head, apply toothpaste, select a brushing mode, and brush teeth following recommended techniques.

Legal Disclaimer

Philips offers relevant software updates for a period of 2 years after the date of purchase

Product description

Product Description

Get exceptional oral care, completely personalized to you - the Philips Sonicare 9900 Prestige with SenseIQ technology is our most advanced power toothbrush. It enhances our proven sonic technology with intelligence, sensing, and adapting for holistic care so you always get it right. SenseIQ technology senses your brushing style, adapts to you in real-time when you brush too hard, and cares intuitively for teeth and gums. Clean without compromise with the A3 Premium All-in-One electric toothbrush head. Our all-time best has angled bristles to help remove up to 20x more plaque even in hard-to-reach areas*. The Philips Sonicare app is powered by artificial intelligence and works in perfect harmony with the toothbrush. Use it to brush with real-time guidance about pressure, motion, coverage, duration, and frequency. Our toothbrush automatically adjusts intensity when you push too hard. And with the free Philips Sonicare app, you can experience tailor-made guidance and personalized recommendations to take your brushing to the next level. Its state-of-the-art technology is so in tune with you and effortless to use that you barely know it is there. The Philips Sonicare 9900 Prestige comes with a USB-supported travel case that boasts easy charging with a minimalist stand and base. * vs. a manual toothbrush ** vs. a manual toothbrush in 6 weeks *** in lab test vs. a manual toothbrush **** based on two periods of two-minute brushings per day on standard mode

Directions

Charge the toothbrush, wet the brush head, apply toothpaste, select a brushing mode, and brush teeth following recommended techniques.


From the manufacturer

Senses your brushing style

While you clean, Philips Sonicare DiamondClean Prestige 9900 uses sensors to detect the pressure you apply, cleaning motion and coverage up to 100 times per second. The sensors also keep an eye on how long and how often you brush.

Adapts to you in real time

Most of us apply too much pressure during brushing. That’s why our toothbrush automatically adjusts intensity when you push too hard. And with the free Philips Sonicare app, you can experience tailormade guidance and personalized recommendations to take your brushing to the next level.

Proven sonic brushing

Brush away plaque with sonic technology – our benchmark in effective and gentle cleaning. While you brush, up to 62,000 bristle movements and dynamic fluid action help clean even hard-to-reach areas, leaving your mouth feeling exceptionally fresh and clean.

Real-time feedback

You might not notice when you brush too hard or start scrubbing, but your toothbrush will. The light ring on the end of your handle will gently remind you to ease off the pressure or scrubbing motion.

Product information

Technical Details

General Information

Additional Information

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Philips Sonicare DiamondClean Prestige 9900 - Sonic Electric Toothbrush with 1x A3 Premium All-in-One Brush Head and Charging Case in Midnight Blue (Model HX9992/12)


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Product details

  • Batteries ‏ : ‎ 1 Lithium Ion batteries required.
  • Product Dimensions ‏ : ‎ 16.8 x 7.4 x 24.3 cm; 506 g
  • Manufacturer ‏ : ‎ Philips Consumer Lifestyle B.V.
  • ASIN ‏ : ‎ B08RTD6QCH
  • Item model number ‏ : ‎ HX9992/12
  • Country of origin ‏ : ‎ China
  • Delivery information:: We cannot deliver certain products outside mainland UK ( Details). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
  • Customer reviews:
    4.2 4.2 out of 5 stars 296 ratings

What's in the box?

  • What's in the box: 1 x DiamondClean Prestige 9900 toothbrush handle in Midnight Blue, 1 x A3 Premium All-in-One Brush head in black, 1 x Prestige USB charging case in Midnight Blue, 1 x Charger base, 1 x USB lead and wall adapter
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.2 out of 5 stars
    296 global ratings

    Customers say

    Customers like the case, comfort, and quality of the toothbrush. However, some customers have reported issues with the build quality, value, and pressure detector. They say it's not built to last, the app doesn't work properly, and the pressure sensor stopped working properly. Customers also disagree on battery life, and performance.

    AI-generated from the text of customer reviews

    32 customers mention ‘Quality’27 positive5 negative

    Customers like the quality of the toothbrush. They mention it's an excellent brush, beautiful, and modern. They also say it'll last years and has a very effective brushing program that perfectly suits their needs. Customers say it cleans their teeth so much more and is a really good experience.

    "...I love the look and the feel and I’m hoping it’ll last me years.I must say though I’m glad I got it half price...." Read more

    "...excellent cleaning capabilities, various brushing modes, and a sleek design. The real differentiator here is the charging technology...." Read more

    "...toothbrush, it “learns” and it has now settled into a very effective brushing programme that perfectly suits my brushing style...." Read more

    "...The toothbrush is stylish and smart, battery life is ok - lasts me around a week before i need to charge...." Read more

    9 customers mention ‘Case’9 positive0 negative

    Customers like the case. They mention it's nice, attractive, and perfect for travelling.

    "...This feature modernizes the charging experience and it is convenient for travelers who prefer carrying fewer cables...." Read more

    "...case (with USB cable) is very attractive and effective, perfect for travelling...." Read more

    "...But…The travel case is lovely and one of the reasons I was attracted to this particular model, but this must have been designed when the..." Read more

    "...It works good, it looks modern and great, the case is great as well but you do not pay for a Ferrari and get Toyota performance." Read more

    6 customers mention ‘Comfort’6 positive0 negative

    Customers find the toothbrush lovely to use, easy to hold, and sleek. They also say it has a great travel case.

    "...Still a good weight though and feels & looks sleek & expensive...." Read more

    "...In someways it did. It was comfortable to hold, nicely weighted and good to look at. The performance however was different...." Read more

    "...It’s quiet, comfortable to use and cleans well…very well.But…..." Read more

    "...It’s a lot small easier to hold and looks great in the dark blue...." Read more

    13 customers mention ‘Battery life’4 positive9 negative

    Customers have mixed opinions about the battery life of the toothbrush. Some mention that it lasts around a week before it needs to be charged, while others say that it loses power very quickly. Some customers also mention that the brush keeps on stopping every second. Overall, the opinions are mixed, and it's recommended to read the reviews carefully before making a purchase.

    "...This one needs recharging after about 10 days. I'm disappointed with this purchase." Read more

    "...My third criticism is this brush has now taken to randomly turning off mid-cleaning cycle after only 5 months, for which it’s probably going..." Read more

    "...The toothbrush is stylish and smart, battery life is ok - lasts me around a week before i need to charge...." Read more

    "...Not built to last, at all.Battery life is at best 1 week. No way can this be recommended...." Read more

    11 customers mention ‘Performance’7 positive4 negative

    Customers are mixed about the performance of the toothbrush. Some mention that it works well, is attractive, and effective, while others say that it failed and stopped working after a week.

    "...The included charging case (with USB cable) is very attractive and effective, perfect for travelling...." Read more

    "I am having to return this (not the easiest process) to Phillips as it has failed...." Read more

    "...The SenseIQ features are good and seem to work ok, but the “intelligent” Sonicare App …isn’t...." Read more

    "This is a fabulous toothbrush, whilst it functions fully. I have had the brush 2 months...." Read more

    19 customers mention ‘Value’5 positive14 negative

    Customers are dissatisfied with the value of the toothbrush. They mention that it's very expensive and not worth the extra money.

    "DO NOT BUY ..Waste of money ....." Read more

    "The app feels like a gimmick. The price tag for this toothbrush is not worth it. My old Sonicare worked just as well at a fraction of the price...." Read more

    "...I must say though I’m glad I got it half price. It’s absolutely worth that money but I’m not sure it’s worth full price.. I guess only time will tell..." Read more

    "...is supposed to be the very best on the market and therefore, the most expensive (insanely expensive for my taste) and what you receive is not up to..." Read more

    8 customers mention ‘Build quality’0 positive8 negative

    Customers are dissatisfied with the build quality of the toothbrush. They mention that it is not built to last, the top of the brush is crumbling away, and it did not have the quality they have come to expect. Some customers also report that the toothbrush came faulty and with a broken brick tile in the box.

    "...slick on the outside and quick to charge with USb-C but a little thin with the strength of the plastic inside...." Read more

    "...The seals at the top of the toothbrush are crumbling away, the toothbrush settings seem to change themselves and the only way you can change them..." Read more

    "...App could be a lot better, it's a bit clunky and annoying in most cases, biggest let down is that it's only seems to be for one person to use, which..." Read more

    "...been a fan of Philips products over the years but this one did not have the quality I have come to expect...." Read more

    5 customers mention ‘Pressure detector’0 positive5 negative

    Customers are dissatisfied with the pressure detector in the toothbrush. They mention that it stopped working properly, rendering the device ineffective, and the app doesn't really work.

    "...Pressure sensor stopped working properly last week and having to return for replacement with Philips, probably a refub." Read more

    "...mean I go to use it, toothbrush in mouth with toothpaste and it won’t work!" Read more

    "...The reason is that it has a pressure detector and will stop when it detects a little too much pressure, it says this is to protect your gum...." Read more

    "...The app doesn't really work unless you stand up with perfect posture and don't move, if like me you wander around or bendover to read something..." Read more

    Most premium toothbrush
    4 out of 5 stars

    Most premium toothbrush

    First of all Amazon/Philips really need to look into the issue of used units being sent to customers. The first unit I received was a completely different model, looked heavily used and rusty. It looked really disgusting. However, Amazon was quick to replace it with a brand new unit. So crisis averted.Anyways, the toothbrush:This is probably the most premium toothbrush money can buy. In the package, you'd get a single A3 premium all-in-one brush head, a brush handle, travel case that supports charging with USB Type-C, a wireless charger, a USB Type-C to Type-A cable and a charging brick.What really stands out about this toothbrush is the vibrations of the handle. It's so much better compared to any electric toothbrush I've used to date.On the brush handle you only get two controls. A power on/off button, and a touch sensitive area for changing vibration intensity. Brushing modes can only be changed on the app.The app itself is alright. Haven't experienced any problems connecting via Bluetooth. A nice feature that was obvious is that it can track and notify you about problem areas that need more attention based on your brushing habits.Battery life is good too. Getting are least 7 days of use on a single charge.Overall this is a great package. Everything about this toothbrush is premium. However is the cleaning you'd get out of this worth the ~£300? I'd say absolutely not! I find that the cheaper Philips Hx9631 model to be quite adequate. Couple it with the A3 brush head and you'll be getting almost the same experience at approximately half the price.
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    Top reviews from United Kingdom

    Reviewed in the United Kingdom on 29 December 2023
    Style Name: MidnightVerified Purchase
    This is the best brush I’ve ever used. I’ve gone from single use vibration one to sharing an oral b body to this and this is eons better.

    I’m sensitive to rubberised material so I love that the body if this is all one material. There’s only one button, customisation is done through the app which is very intuitive and easy to set up and use. The brush feels quality and is on the lighter side which is preferable for me. Still a good weight though and feels & looks sleek & expensive.

    Only got it today so can’t comment on battery but it came just over 50% charged so I’m expecting about a week. The charger itself is USB which is great - I don’t have to keep it in the bathroom. However the plastic cover does feel a little cheap compared to the rest of the brush and accessories. It’s only letdown.

    The charging case is super smart and faux leather in a colour matching the brush - midnight blue in my case. I love the look and the feel and I’m hoping it’ll last me years.

    I must say though I’m glad I got it half price. It’s absolutely worth that money but I’m not sure it’s worth full price.. I guess only time will tell. So far so good.
    One person found this helpful
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    Reviewed in the United Kingdom on 21 May 2024
    Style Name: MidnightVerified Purchase
    The Philips Sonicare DiamondClean Prestige 9900 toothbrush offers some advanced features, echoing much of what made its predecessor, the Sonicare 9000, popular. However, there are a few upgrades in the 9900 model that may catch the eye of tech enthusiasts, particularly the addition of a USB-C charging case. This feature modernizes the charging experience and it is convenient for travelers who prefer carrying fewer cables.

    Performance-wise, the DiamondClean Prestige 9900 performs similarly to the Sonicare 9000, offering excellent cleaning capabilities, various brushing modes, and a sleek design. The real differentiator here is the charging technology.

    When it comes to value, it’s important to note that the 9900 model is priced significantly higher than the 9000. This price increase is primarily for the new charging feature and slightly updated aesthetics. For those already using the Sonicare 9000, upgrading to the 9900 does not provide enough value to justify the cost, especially considering the performance similarities.

    However, if you're new to the Sonicare range or in a position to indulge in the latest model, the DiamondClean Prestige 9900 with its USB-C charging case is certainly a luxurious and convenient choice. It's perfect for anyone looking to integrate more tech-savvy solutions into their daily routine, provided the price point is within your comfort zone.
    3 people found this helpful
    Report
    Reviewed in the United Kingdom on 3 November 2023
    Style Name: MidnightVerified Purchase
    I bought this to replace my Philips Sonicare DiamondClean Smart which finally died after 6 years of faithful service. My dentist always compliments me on my oral hygiene so much so that at 57 years of age I have yet had to see a hygienist because, as my dentist can confirm my teeth are virtually plaque free.I attribute this solely to my old Sonicare toothbrush.

    I had no hesitation in immediately purchasing this new, updated version of my old toothbrush and expected it to behave in more or less the same way. In someways it did. It was comfortable to hold, nicely weighted and good to look at. The performance however was different. It is actually better (I didn’t think it possible) than my old one. Initially I thought it a little vicious in its vibration and indeed it was. But this is no ordinary toothbrush, it “learns” and it has now settled into a very effective brushing programme that perfectly suits my brushing style. My teeth have never felt so clean and I can definitely see that they are whiter.

    The included charging case (with USB cable) is very attractive and effective, perfect for travelling.

    In my opinion this, being Philips top of the range Sonicare has to the best electric toothbrush available. I haven’t always bought Sonicare, I have tried the others but believe me, once you give one of these a go you won’t look back and your dentist will thank you for it!
    7 people found this helpful
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    Reviewed in the United Kingdom on 2 December 2023
    Style Name: ChampagneVerified Purchase
    Have been using sonicare for years. This feels the best yet. Got it half price. Extortionate price at full RRP.
    Unfortunately to change modes you need an app. Lot of hassle. Have yet to bother.
    The carrying/charging case is small. It is hard to fit handle and brush in. There is no space for usb lead unlike my previous one. Like the previous one it takes hours to fully charge.
    Otherwise I am pleased with it.
    Reviewed in the United Kingdom on 10 June 2024
    Style Name: ChampagneVerified Purchase
    DO NOT BUY ..
    Waste of money ..
    I am going back to use Oral B brand as they clean better ,the brush itself is so soft ,it doesn’t feel like brushing your teeth at all,only strong vibrations that weaken my teeth ..
    I feel like I have to visit my hygienist more often after using this expensive toothbrush.
    2 people found this helpful
    Report

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