Buy wisely
Buy wiselyBuy wisely
For RetailersFor developers
  1. Home
  2. Home & Appliances
  3. Bathroom Appliances
  4. Electric Toothbrushes
  5. Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Buy wisely

BuyWisely is your one stop price comparison platform, delivering the best deals from over 20,000 online shops. We empower shoppers to make smart, cost-effective choices by offering transparent pricing, price history, and the latest deals across a broad range of products. With BuyWisely, your money goes further.

Popular Shops
JB Hi-Fi
The Good Guys
Harvey Norman
Appliances Online
Bing Lee
Kogan
Amazon
Officeworks
Contact Us
[email protected]
Affiliate Disclosure
Legal Information
Privacy Policy
Logos provided by Logo.dev
© 2026 BuyWisely‱Price data powered by pricesAPI.io‱Retailers: SellWisely.io
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11
Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11

Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11

(3,035 reviews)

A brush that learns and adapts to how you brush, for your most complete clean yet. Philips Sonicare 9900 Prestige with SenseIQ technology is our most advanced electric toothbrush. Sensing your every move and adapting to your needs in real time for exceptional care. As you brush, pressure, motion, coverage and more are monitored up to 100 times per second. The brush then adapts automatically in real time for advanced teeth and gum care. BrushSync mode-pairing & replacement reminders automatically sync your brush head to the optimal brushing mode and alert you when it's time to replace your brush head for the best results.

A brush that learns and adapts to how you brush, for your most complete clean yet. Philips Sonicare 9900 Prestige with SenseIQ technology is our most advanced electric toothbrush. Sensing your every move and adapting to your needs in real time for exceptional care. As you brush, pressure, motion, coverage and more are monitored up to 100 times per second. The brush then adapts automatically in real time for advanced teeth and gum care. BrushSync mode-pairing & replacement reminders automatically sync your brush head to the optimal brushing mode and alert you when it's time to replace your brush head for the best results.

$337.99 - $951.60

in 14 offers

last seen 1 Nov 2026

The lowest price we last saw for Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11 was $337.99 at eBay.com.au, compared across 6 retailers (last seen 1 Nov 2026). Prices may have changed since.

The all-time low we recorded was $121.55 on 28 June 2025.

Prices last updated 1 Nov 2026.

Colour:

Champagne

Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush With SenseIQ, Champagne, HX9990/11

$337.99

last seen 1 Nov 2026
(3,035 reviews)

A brush that learns and adapts to how you brush, for your most complete clean yet. Philips Sonicare 9900 Prestige with SenseIQ technology is our most advanced electric toothbrush. Sensing your every move and adapting to your needs in real time for exceptional care. As you brush, pressure, motion, coverage and more are monitored up to 100 times per second. The brush then adapts automatically in real time for advanced teeth and gum care. BrushSync mode-pairing & replacement reminders automatically sync your brush head to the optimal brushing mode and alert you when it's time to replace your brush head for the best results.

A brush that learns and adapts to how you brush, for your most complete clean yet. Philips Sonicare 9900 Prestige with SenseIQ technology is our most advanced electric toothbrush. Sensing your every move and adapting to your needs in real time for exceptional care. As you brush, pressure, motion, coverage and more are monitored up to 100 times per second. The brush then adapts automatically in real time for advanced teeth and gum care. BrushSync mode-pairing & replacement reminders automatically sync your brush head to the optimal brushing mode and alert you when it's time to replace your brush head for the best results.

Midnight Blue
Pink

Price comparison

Price data powered by pricesAPI.io

Last updated at 01/11/2026 10:08:48

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$604.57

Philips Sonicare DiamondClean 9900 Prestige Electric Toothbrush - with SenseIQ Technology and Advanced AI App, 5 Brushing Modes, 3 Intensity Levels,

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64eBay.com.au

$337.99

Philips Sonicare 9900 Prestige Our Most Advanced Electric Toothbrush

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=desertcart.ae&sz=64Desertcart.ae

$705.14

9900 Prestige Electric Toothbrush, 1 Brush Head, Champagne

Free delivery between 10–13 Nov

https://www.google.com/s2/favicons?domain=desertcart.com.sa&sz=64desertcart.com.sa

$740.93

9900 Prestige Electric Toothbrush, 1 Brush Head, Champagne

Free delivery between 10–13 Nov

https://www.google.com/s2/favicons?domain=desertcart.com.au&sz=64desertcart.com.au

$741.60

Philips Sonicare Prestige 9900

Delivery between 7–10 Nov $29

https://www.google.com/s2/favicons?domain=u-buy.com.au&sz=64Ubuy Australia

$839.00

Philips Sonicare 9900 Prestige Rechargeable Electric Power Toothbrush & for Kids 3+

Delivery $49.20

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

3 November 2022Dimitar Ashikov

originally posted on Google

Waste of money, unreliable, limited use20 days after purchase, the handle battery is dead and cannot be charged. Replacement service is awful and absolute waste of time. During my 20 days experience with this extremely expensive toothbrush my observations are as follows:– Battery lasts for a few days and must be charged.– The tracking on the app is not precise and would be in error most of the time and would show that you covered parts that you actually did not cover and the opposite. This happens even if you go with the set direction and starting position. If you do not start from that point, it would be even worse. It is not reliable.– If you brush without the app, it will not be posted later when you connect the toothbrush to the app. So forget about ... MoreWaste of money, unreliable, limited use20 days after purchase, the handle battery is dead and cannot be charged. Replacement service is awful and absolute waste of time. During my 20 days experience with this extremely expensive toothbrush my observations are as follows:– Battery lasts for a few days and must be charged.– The tracking on the app is not precise and would be in error most of the time and would show that you covered parts that you actually did not cover and the opposite. This happens even if you go with the set direction and starting position. If you do not start from that point, it would be even worse. It is not reliable.– If you brush without the app, it will not be posted later when you connect the toothbrush to the app. So forget about brushing without the app, and synchronizing later and have all your cleans in the app for stats.– The stats in the app – extremely limited. Tips – well if you think that 3 tips that repeat all the time is usable to you, than yeah it provides you tips. I wonder what the Oral-B app looks like, as the advertised tips and stats in your review here helped a lot for my decision to go with Philips as opposed to Oral-B, and in reality the stats are very limited. You get brushing time for each part which is not even accurate, since most of the time the toothbrush does not know what part and whether back or front you are brushing and they are messed up always. You do not get the hours of the day, if you happen to brush twice in the morning, for example to cover a bit more than the 2 minutes, then even if you skip the evening, the app will show you that you brushed 2 and there is no way to see that you skipped the evening activity.– Cleaning – ok
.but you get the same with a $100 toothbrush.– To change modes you need the app.– Materials – did not appear to be expensive and solid for the price, no difference to me to $100 toothbrush. The inside of the box was covered with dust – I purchased form the Philips online shop.As a conclusion – absolute waste of money. The app is of very little use, the tracking is malfunctioning all the time, stats extremely limited, battery does not last for long, quality is not reliable. I would not advise to buy this toothbrush.

29 July 2023jaycee.l

originally posted on influenster.com

The Sonicare Prestige 9900 electric toothbrush is a game-changer for my oral hygiene routine! Its convenience factor is off the charts – with multiple brushing modes and a built-in timer, it takes the guesswork out of my brushing sessions. I love how it keeps me on track, ensuring I spend the right amount of time on each quadrant of my mouth. Plus, the sleek design and lightweight body make it easy to handle, providing a comfortable grip that doesn't strain my hand during use. When it comes to portability, the Sonicare Prestige 9900 is a true travel companion. Its long-lasting battery life means I can take it on trips without worrying about constant recharging. The included travel case keeps it protected and hygienic, while the compact size easily fits into my ... MoreThe Sonicare Prestige 9900 electric toothbrush is a game-changer for my oral hygiene routine! Its convenience factor is off the charts – with multiple brushing modes and a built-in timer, it takes the guesswork out of my brushing sessions. I love how it keeps me on track, ensuring I spend the right amount of time on each quadrant of my mouth. Plus, the sleek design and lightweight body make it easy to handle, providing a comfortable grip that doesn't strain my hand during use. When it comes to portability, the Sonicare Prestige 9900 is a true travel companion. Its long-lasting battery life means I can take it on trips without worrying about constant recharging. The included travel case keeps it protected and hygienic, while the compact size easily fits into my luggage or backpack. As for its effectiveness, my teeth have never felt cleaner or looked whiter! The powerful sonic vibrations give my mouth a thorough cleaning, reaching those hard-to-reach areas and removing stubborn plaque effortlessly. And the bonus? My teeth are visibly brighter, leaving me with a confident smile that I can't help but show off. The only downside to this incredible toothbrush is its price, which may be a bit on the expensive side for some. However, considering the overall convenience, portability, and outstanding performance, I can confidently say that the Sonicare Prestige 9900 is worth every penny. It's an investment in oral health that delivers on its promises, and I couldn't be happier with the results!

A polished product that lives up to the hype
29 December 2022JacqEm

originally posted on philips.com.au

I bought this product when my old Sonicare Diamond started to get really loud and just didn't brush as well anymore. Unboxing it was a treat. The packaging, the handle, brushes and charging case all looked really good. The app worked well with the brush and I was loving it. I particularly loved the tongue brush that came with the box.After about three months, the toothbrush went from a nice quiet buzz to extremely loud and the brush function just wasn't doing it's job. I thought, oh no! Not again. So, I contacted Philips through the app and was given the phone number to contact them. The support centre for Australia were extremely good. They asked me a series of questions about the toothbrush and what was happening and assessed that I needed a replacement handle ... MoreI bought this product when my old Sonicare Diamond started to get really loud and just didn't brush as well anymore. Unboxing it was a treat. The packaging, the handle, brushes and charging case all looked really good. The app worked well with the brush and I was loving it. I particularly loved the tongue brush that came with the box.After about three months, the toothbrush went from a nice quiet buzz to extremely loud and the brush function just wasn't doing it's job. I thought, oh no! Not again. So, I contacted Philips through the app and was given the phone number to contact them. The support centre for Australia were extremely good. They asked me a series of questions about the toothbrush and what was happening and assessed that I needed a replacement handle which they organised very quickly.I've had the replacement for about two months and it's going well. The toothbrush is awesome and does what it says it will do. My gums feel healthy, my teeth look whiter and I'm pretty happy in general with the product. I also trust Philips to replace the handle should anything go wrong again. Fingers crossed.

Specification

Product TypeElectric Toothbrush
SubtypeElectric toothbrush, Sonic
Replaceable HeadYes
Head SizeCompact
Included AccessoriesTravel case

Price comparison

Updated 8 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$604.57

Philips Sonicare DiamondClean 9900 Prestige Electric Toothbrush - with SenseIQ Technology and Advanced AI App, 5 Brushing Modes, 3 Intensity Levels,

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=ebay.com.au&sz=64
eBay.com.au

$337.99

Philips Sonicare 9900 Prestige Our Most Advanced Electric Toothbrush

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=desertcart.ae&sz=64
Desertcart.ae

$705.14

9900 Prestige Electric Toothbrush, 1 Brush Head, Champagne

Free delivery between 10–13 Nov

https://www.google.com/s2/favicons?domain=desertcart.com.sa&sz=64
desertcart.com.sa

$740.93

9900 Prestige Electric Toothbrush, 1 Brush Head, Champagne

Free delivery between 10–13 Nov

https://www.google.com/s2/favicons?domain=desertcart.com.au&sz=64
desertcart.com.au

$741.60

Philips Sonicare Prestige 9900

Delivery between 7–10 Nov $29

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Reviews

3 November 2022

Waste of money, unreliable, limited use20 days after purchase, the handle battery is dead and cannot be charged. Replacement service is awful and absolute waste of time. During my 20 days experience with this extremely expensive toothbrush my observations are as follows:– Battery lasts for a few days and must be charged.– The tracking on the app is not precise and would be in error most of the time and would show that you covered parts that you actually did not cover and the opposite. This happens even if you go with the set direction and starting position. If you do not start from that point, it would be even worse. It is not reliable.– If you brush without the app, it will not be posted later when you connect the toothbrush to the app. So forget about ... MoreWaste of money, unreliable, limited use20 days after purchase, the handle battery is dead and cannot be charged. Replacement service is awful and absolute waste of time. During my 20 days experience with this extremely expensive toothbrush my observations are as follows:– Battery lasts for a few days and must be charged.– The tracking on the app is not precise and would be in error most of the time and would show that you covered parts that you actually did not cover and the opposite. This happens even if you go with the set direction and starting position. If you do not start from that point, it would be even worse. It is not reliable.– If you brush without the app, it will not be posted later when you connect the toothbrush to the app. So forget about brushing without the app, and synchronizing later and have all your cleans in the app for stats.– The stats in the app – extremely limited. Tips – well if you think that 3 tips that repeat all the time is usable to you, than yeah it provides you tips. I wonder what the Oral-B app looks like, as the advertised tips and stats in your review here helped a lot for my decision to go with Philips as opposed to Oral-B, and in reality the stats are very limited. You get brushing time for each part which is not even accurate, since most of the time the toothbrush does not know what part and whether back or front you are brushing and they are messed up always. You do not get the hours of the day, if you happen to brush twice in the morning, for example to cover a bit more than the 2 minutes, then even if you skip the evening, the app will show you that you brushed 2 and there is no way to see that you skipped the evening activity.– Cleaning – ok
.but you get the same with a $100 toothbrush.– To change modes you need the app.– Materials – did not appear to be expensive and solid for the price, no difference to me to $100 toothbrush. The inside of the box was covered with dust – I purchased form the Philips online shop.As a conclusion – absolute waste of money. The app is of very little use, the tracking is malfunctioning all the time, stats extremely limited, battery does not last for long, quality is not reliable. I would not advise to buy this toothbrush.

Dimitar Ashikov originally posted on Google
29 July 2023

The Sonicare Prestige 9900 electric toothbrush is a game-changer for my oral hygiene routine! Its convenience factor is off the charts – with multiple brushing modes and a built-in timer, it takes the guesswork out of my brushing sessions. I love how it keeps me on track, ensuring I spend the right amount of time on each quadrant of my mouth. Plus, the sleek design and lightweight body make it easy to handle, providing a comfortable grip that doesn't strain my hand during use. When it comes to portability, the Sonicare Prestige 9900 is a true travel companion. Its long-lasting battery life means I can take it on trips without worrying about constant recharging. The included travel case keeps it protected and hygienic, while the compact size easily fits into my ... MoreThe Sonicare Prestige 9900 electric toothbrush is a game-changer for my oral hygiene routine! Its convenience factor is off the charts – with multiple brushing modes and a built-in timer, it takes the guesswork out of my brushing sessions. I love how it keeps me on track, ensuring I spend the right amount of time on each quadrant of my mouth. Plus, the sleek design and lightweight body make it easy to handle, providing a comfortable grip that doesn't strain my hand during use. When it comes to portability, the Sonicare Prestige 9900 is a true travel companion. Its long-lasting battery life means I can take it on trips without worrying about constant recharging. The included travel case keeps it protected and hygienic, while the compact size easily fits into my luggage or backpack. As for its effectiveness, my teeth have never felt cleaner or looked whiter! The powerful sonic vibrations give my mouth a thorough cleaning, reaching those hard-to-reach areas and removing stubborn plaque effortlessly. And the bonus? My teeth are visibly brighter, leaving me with a confident smile that I can't help but show off. The only downside to this incredible toothbrush is its price, which may be a bit on the expensive side for some. However, considering the overall convenience, portability, and outstanding performance, I can confidently say that the Sonicare Prestige 9900 is worth every penny. It's an investment in oral health that delivers on its promises, and I couldn't be happier with the results!

jaycee.l originally posted on influenster.com
A polished product that lives up to the hype
29 December 2022

I bought this product when my old Sonicare Diamond started to get really loud and just didn't brush as well anymore. Unboxing it was a treat. The packaging, the handle, brushes and charging case all looked really good. The app worked well with the brush and I was loving it. I particularly loved the tongue brush that came with the box.After about three months, the toothbrush went from a nice quiet buzz to extremely loud and the brush function just wasn't doing it's job. I thought, oh no! Not again. So, I contacted Philips through the app and was given the phone number to contact them. The support centre for Australia were extremely good. They asked me a series of questions about the toothbrush and what was happening and assessed that I needed a replacement handle ... MoreI bought this product when my old Sonicare Diamond started to get really loud and just didn't brush as well anymore. Unboxing it was a treat. The packaging, the handle, brushes and charging case all looked really good. The app worked well with the brush and I was loving it. I particularly loved the tongue brush that came with the box.After about three months, the toothbrush went from a nice quiet buzz to extremely loud and the brush function just wasn't doing it's job. I thought, oh no! Not again. So, I contacted Philips through the app and was given the phone number to contact them. The support centre for Australia were extremely good. They asked me a series of questions about the toothbrush and what was happening and assessed that I needed a replacement handle which they organised very quickly.I've had the replacement for about two months and it's going well. The toothbrush is awesome and does what it says it will do. My gums feel healthy, my teeth look whiter and I'm pretty happy in general with the product. I also trust Philips to replace the handle should anything go wrong again. Fingers crossed.

JacqEm originally posted on philips.com.au
Clean teeth, happy dentist
23 September 2022

I bought this because my previous Sonicare Diamondclean of 10-11 years stopped working. This one is pretty expensive but worth it. I had this for about two weeks before I had another dentist appointment. The dental hygenist commented that my teeth were very clean and didn't say anything about flossing or gum recession (hint I didn't floss everyday, if my dentist is reading this I'm sorry lol). She probably spent about 15 minutes tops doing my routine cleaning. I owe this in part due to this toothbrush. With the accompanying app (if you don't want to use an app, just don't buy this, you won't get your money's worth), it guides you on how to brush your teeth, like if you scrub too much or if you have too much pressure. You can also set up zones where if you have ... MoreI bought this because my previous Sonicare Diamondclean of 10-11 years stopped working. This one is pretty expensive but worth it. I had this for about two weeks before I had another dentist appointment. The dental hygenist commented that my teeth were very clean and didn't say anything about flossing or gum recession (hint I didn't floss everyday, if my dentist is reading this I'm sorry lol). She probably spent about 15 minutes tops doing my routine cleaning. I owe this in part due to this toothbrush. With the accompanying app (if you don't want to use an app, just don't buy this, you won't get your money's worth), it guides you on how to brush your teeth, like if you scrub too much or if you have too much pressure. You can also set up zones where if you have sensitive gums or possible cavity prone areas it can focus more on those areas. At the end of the routine, it kind of grades you and tells you how to improve your brushing. I think if this toothbrush lasts a long time it will be well worth the high price and your teeth/gum health will be good too.

z0mghenry originally posted on bestbuy.com
Great for travel, cleans super well
28 July 2023

I've had a Philips Sonicare Diamondclean toothbrush for 5 years. Recently, the battery on that one started going out so I knew I needed a new toothbrush. I decided to purchase this one because the carrying case seemed much more convenient for travel. I was pleasantly surprised to find this brushed even better than my last toothbrush! It's hard to say if that's because the battery on my old toothbrush had weakened over time, but I've been pleased. I've removed a star because I do think it's pretty expensive for an electric toothbrush, particularly knowing that the battery life is likely equivalent to my last toothbrush (5 years) and repurchasing brushheads isn't cheap. I'm attempting to extend the life by not keeping it plugged in all of the time and only charging it ... MoreI've had a Philips Sonicare Diamondclean toothbrush for 5 years. Recently, the battery on that one started going out so I knew I needed a new toothbrush. I decided to purchase this one because the carrying case seemed much more convenient for travel. I was pleasantly surprised to find this brushed even better than my last toothbrush! It's hard to say if that's because the battery on my old toothbrush had weakened over time, but I've been pleased. I've removed a star because I do think it's pretty expensive for an electric toothbrush, particularly knowing that the battery life is likely equivalent to my last toothbrush (5 years) and repurchasing brushheads isn't cheap. I'm attempting to extend the life by not keeping it plugged in all of the time and only charging it when it is out of battery, though time will tell if this is effective at extending the battery life. That said, it really does clean exceptionally well, and the small footprint for storage is meaningful to me as I travel a lot.

Megan originally posted on bestbuy.com
Just okay for the price.
7 February 2023

The best part of this toothbrush is the case and type C charger. The case is compact and beautiful and the magnetic closure is good too although I wish it were a little stronger. The toothbrush itself works great. I would recommend to someone who does NOT change brush modes. I however do change brush modes. You can't do that from the handle of the brush, you must open the app on phone to do so. When you are rushing, that is not feasible. I also thought that this was a smart brush that would change modes based on the brush head being used but to my disappointment, that is not a feature either. I would like a little more weight in the brush handle as it feels like it's going to fall out of my hands quite a bit. It's not slippery, just weightless... feels cheap, ... MoreThe best part of this toothbrush is the case and type C charger. The case is compact and beautiful and the magnetic closure is good too although I wish it were a little stronger. The toothbrush itself works great. I would recommend to someone who does NOT change brush modes. I however do change brush modes. You can't do that from the handle of the brush, you must open the app on phone to do so. When you are rushing, that is not feasible. I also thought that this was a smart brush that would change modes based on the brush head being used but to my disappointment, that is not a feature either. I would like a little more weight in the brush handle as it feels like it's going to fall out of my hands quite a bit. It's not slippery, just weightless... feels cheap, especially when compared to the original sonicare Diamondclean. If you are like me, you want something beautiful in your bathroom and this brush just is not as beautiful as my white and silver original sonicare diamondclean. Speaking of white and silver, what are these horrible colors this 9900 comes in??? I have the champagne color thinking it would be tolerable but I'm definitely having buyers remorse. I have gone back to using my non smart diamond clean. One last thing, the app does not guide you to brush the biting surfaces of teeth so when you run your brush over those surfaces you will take time away from other surfaces and your app will say you did not brush for 2 minutes. The touch up option on app is hit or miss as it sometimes pops up and sometimes it doesn't. Do yourself a favor and just buy the non smart original diamondclean.

Theresa23 originally posted on philips.com
Not worth it
21 August 2023

I’m having some gum recession; I bought this toothbrush to have a more informed conversation with my dentist about my brushing habits, specifically the coverage/pressure tracking. The smart functionality of this product is absolutely useless. The toothbrush isn’t able to correctly determine position in my mouth, and the “too much pressure” alert triggers when I flip the toothbrush to brush the other side of my mouth. The presented data post-brush is wildly inaccurate. Additionally, the toothbrush requires you to brush in a specific pattern (and it STILL doesn’t detect position correctly). The A3 brush head it comes with by default will is over large and hard - leaves my gums feeling sore, which is problem for my gum recession.The smart features are useless - do ... MoreI’m having some gum recession; I bought this toothbrush to have a more informed conversation with my dentist about my brushing habits, specifically the coverage/pressure tracking. The smart functionality of this product is absolutely useless. The toothbrush isn’t able to correctly determine position in my mouth, and the “too much pressure” alert triggers when I flip the toothbrush to brush the other side of my mouth. The presented data post-brush is wildly inaccurate. Additionally, the toothbrush requires you to brush in a specific pattern (and it STILL doesn’t detect position correctly). The A3 brush head it comes with by default will is over large and hard - leaves my gums feeling sore, which is problem for my gum recession.The smart features are useless - do yourself a favor and buy a cheaper toothbrush.

Kyle originally posted on bestbuy.com
Waste of money, unreliable, limited use
3 November 2022

20 days after purchase the handle battery is dead and cannot be charged. Replacement service is awful and absolute waste of time. During my 20 days experience with this extremely expensive toothbrush my observations are as follows:- Battery lasts for a few days and must be charged.- The tracking on the app is not precise and would be in error most of the time and would show that you covered parts that you actually did not cover and the opposite. This happens even if you go with the set direction and starting position. If you do not start from that point, it would be even worse. It is not reliable.- The stats in the app - extremely limited. Tips - well if you think that 3 tips that repeat all the time is usable to you, than yeah it provides you tips.- ... More20 days after purchase the handle battery is dead and cannot be charged. Replacement service is awful and absolute waste of time. During my 20 days experience with this extremely expensive toothbrush my observations are as follows:- Battery lasts for a few days and must be charged.- The tracking on the app is not precise and would be in error most of the time and would show that you covered parts that you actually did not cover and the opposite. This happens even if you go with the set direction and starting position. If you do not start from that point, it would be even worse. It is not reliable.- The stats in the app - extremely limited. Tips - well if you think that 3 tips that repeat all the time is usable to you, than yeah it provides you tips.- Cleaning - ok....but you get the same with a $100 toothbrush.- To change modes you need the app.- Materials - did not appear to be expensive and solid, no difference to me to $100 toothbrush. The inside of the box was with dust.Absolute waste of money. The app is of very little use, the tracking is malfunctioning all the time, stats extremely limited, battery does not last for long, quality is not reliable.I would not advise to buy this toothbrush.

MitkoA originally posted on philips.com
Worth the Price!
15 July 2023

I have been using Sonicare toothbrushes for years, so when it was time to replace my previous model, I decided to go for the best! I am so happy with this model. It cleans my teeth so much better than any toothbrush I have ever used. I love the technology. It alerts me if I apply too much pressure or move the brush too fast while brushing. I can use my smartphone to follow my brushing session to see if I have adequately cleaned each area. There are multiple modes I can use, such as “deep clean” or “whitening” and each mode is perfectly timed. The smartphone app keeps track of my brushing habits and makes suggestions for the most effective cleaning experience. The Prestige 9900 also tells me when I need to replace the brush head and even allows me to auto order using ... MoreI have been using Sonicare toothbrushes for years, so when it was time to replace my previous model, I decided to go for the best! I am so happy with this model. It cleans my teeth so much better than any toothbrush I have ever used. I love the technology. It alerts me if I apply too much pressure or move the brush too fast while brushing. I can use my smartphone to follow my brushing session to see if I have adequately cleaned each area. There are multiple modes I can use, such as “deep clean” or “whitening” and each mode is perfectly timed. The smartphone app keeps track of my brushing habits and makes suggestions for the most effective cleaning experience. The Prestige 9900 also tells me when I need to replace the brush head and even allows me to auto order using my Amazon Echo/Alexa.

SonicareLover2023 originally posted on philips.com
expensive to but and operate, bad app performance
12 August 2023

Great toothbrush, but the app needs help, and the "brush head life is too short for the price you pay for replacement brush heads. The toothbrush itself works amazing. My teeth feel clean and instead of brushing in quadrants, it has you brushing in sixths. I actually like this! So from a basic performance aspect, this brush is amazing!But.......the app is very inconsistent. I will be brushing the back of my teeth and the app does not seem to realize this. Then, after I finish brushing, it wants me to go back over the areas that I missed, but I already brushed them. To spend $300 on a toothbrush with an app that doesn't work is frustrating. So, I don't use the app anymore, even though it synchs with my Apple Health app.Lastly, the brush head only lasts about 3 ... MoreGreat toothbrush, but the app needs help, and the "brush head life is too short for the price you pay for replacement brush heads. The toothbrush itself works amazing. My teeth feel clean and instead of brushing in quadrants, it has you brushing in sixths. I actually like this! So from a basic performance aspect, this brush is amazing!But.......the app is very inconsistent. I will be brushing the back of my teeth and the app does not seem to realize this. Then, after I finish brushing, it wants me to go back over the areas that I missed, but I already brushed them. To spend $300 on a toothbrush with an app that doesn't work is frustrating. So, I don't use the app anymore, even though it synchs with my Apple Health app.Lastly, the brush head only lasts about 3 months (if you brush 2 times a day). Replacement brush heads are also very expensive, so this is a bit frustrating. I believe that I can stretch the life of the brush head to 5-6 months, but it annoyingly vibrates after every brushing to tell me that I need to replace the brush head. Nothing that disturbed the cleanliness of my teeth, but it is very annoying.So, again a great toothbrush for your oral hygiene, but if you are buying for the other advantages, buy a cheaper model.

StephenY originally posted on bestbuy.com

Specification

Product TypeElectric Toothbrush
SubtypeElectric toothbrush, Sonic
Replaceable HeadYes
Head SizeCompact
Included AccessoriesTravel case

You may also like

Philips Sonicare 9900 Prestige Rechargeable Electric Toothbrush with SenseIQ
Philips Sonicare 9900 Prestige Rechargeable Electric Toothbrush with SenseIQ$592.26 - $920.73
Compare 3 offers
Sonicare 9900 Prestige Power Toothbrush with SenseIQ
Sonicare 9900 Prestige Power Toothbrush with SenseIQ$667.96 - $1,214.30
★★★★★★★★★★
3,035
Compare 3 offers
- 24%
Philips Sonicare Prestige 9900 Power Toothbrush
Philips Sonicare Prestige 9900 Power Toothbrush$717.95 - $1,011.46
Compare 4 offers
- 36%
Philips Sonicare 9900 Prestige Electric Toothbrush
Philips Sonicare 9900 Prestige Electric Toothbrush$233.46 - $1,813.44
Compare 29 offers
Philips Sonicare Next-Gen DiamondClean 9900 Prestige Electric Toothbrush
Philips Sonicare Next-Gen DiamondClean 9900 Prestige Electric Toothbrush$604.62 - $604.62
Compare 2 offers
- 1%
Philips Philips Sonicare Hx9692/11 ExpertClean Rechargeable Electric Power Toothbrush
Philips Philips Sonicare Hx9692/11 ExpertClean Rechargeable Electric Power Toothbrush$286.76 - $553.59
Compare 4 offers