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🦷 Elevate your oral care game—because your smile deserves genius-level clean!
The Oral-B iO Series 9 Genius Rechargeable Electric Toothbrush combines advanced AI-powered 3D teeth tracking, a frictionless magnetic drive system, and a visible pressure sensor to deliver a clinically proven 4x superior plaque removal and healthier gums. Featuring 7 customizable cleaning modes, a smart interactive display, and a premium travel charging case with 4 replacement brush heads, it’s designed for professionals who demand a smarter, more effective daily clean.






















| ASIN | B088CK6XJ4 |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #9,477 in Health & Household ( See Top 100 in Health & Household ) #73 in Electric Toothbrush Replacement Brush Heads |
| Brand | Oral-B |
| Brand Name | Oral-B |
| Bristle Material | Nylon |
| Color | Blackonyx |
| Customer Reviews | 4.4 out of 5 stars 8,130 Reviews |
| Global Trade Identification Number | 00069055128909 |
| Handle Material | Plastic |
| Included Components | Timer |
| Item Dimensions | 7.01 x 3.94 x 9.96 inches |
| Item Firmness Description | Hard |
| Item Weight | 1.4 pounds |
| Manufacturer | Procter & Gamble |
| Manufacturer Part Number | iO M9.4B2.2A |
| Material Features | Reusable |
| Model Name | iO Series 8 Electric Toothbrush with 2 Replacement Brush Heads |
| Model Number | iO M9.4B2.2A |
| Mount Motion | Oscillate |
| Number of Items | 1 |
| Number of Pieces | 4 |
| Number of settings | 7 |
| Operation Mode | Automatic |
| Other Special Features of the Product | Bluetooth Connectivity, Brushing Timer, Pressure Sensor, Rechargeable, Travel Size |
| Package Type Name | Box |
| Power Source | Battery Powered |
| Reusability | Rechargeable |
| Target Audience | Unisex-Adults |
| Theme | Oral Care |
| Toothbrush Head Shape | Round |
| UPC | 069055128909 |
| Unit Count | 1 Count |
A**S
Cheaper than a filling & totally worth the investment after 9 months of use
My dental hygienist recommended this toothbrush about nine months ago. When I mentioned how expensive it was, she said, “It’s still cheaper than getting a filling.” That changed how I looked at the price, so I went for it. The guided brushing app takes the guesswork out of whether I’m actually brushing everywhere. I used it twice a day in the beginning, which really helped me build better brushing habits. Nine months later, I don’t use the app every time anymore, but I still check in here and there to make sure I’m staying on track. The pressure sensor is also super helpful! My dentist mentioned that many people damage their gums and teeth by brushing too hard, and this makes it very obvious when you’re using too much pressure. I’ve had two dental cleanings since switching, and both were probably the quickest I’ve ever had. My dentist and hygienist said everything looked great with very little cleaning needed and mentioned they commonly see this with patients using an Oral-B iO. The brush heads indicate when they need replacing, which for me has been roughly every three months. They’re about $10 per replacement head, so that’s another ~$40 a year to factor into the cost. Not cheap, but reasonable enough for me considering how well the toothbrush has performed. My only complaint is that it’s can be a bit messy. Even after rinsing the head and shaking off excess water, some water/toothpaste tends to run down the handle once it’s on the charger, so I clean the charging base a couple times a week. It’s definitely an investment, but after nine months of daily use and two great dental checkups, I’m very happy I bought it.
B**K
Recommended for Traveling and At Home
I've had this now for nearly a year and it's been working well. The built in 2 minute timer with vibrations are great for knowing when to move on from the sections of the mouth. Wish the brush heads would last a little longer but they clean fairly well. Many different settings that you can choose to brush teeth from super sensitive to daily clean or gum care. I do keep my brush on the wireless charger all the time but I've been able to take it on trips without it running out of power, and I bring the travel case just incase but never had to use it. I would recommend this to get your brushing habits fixed if you have a hard time of sticking to the brushing schedule.
C**Y
Daily Brilliance: Discover the Habit-Forming Magic of the iO 9 Series
Overall Satisfaction: I give the Oral-B iO Series 9 a solid 5. This toothbrush is amazing and well worth the higher cost compared to other series. Main Purpose: I purchased this toothbrush to maintain optimal dental health and minimize the need for extensive dental procedures. Ease of Use: The toothbrush is excellent, and you can even turn on the phone to track your performance. It offers awards for meeting specific goals, some of which can be challenging to achieve. Performance: The Series 9 comes with additional sensors and a flat magnetic mount for convenient charging. While the battery drains quickly, it's not an issue for short 2-3 minute sessions. Features: The ability to visually track cleaning habits is a standout feature. With multiple modes available, I typically use sensitive, whitening, or daily settings. Durability: The toothbrush is very durable, and despite the quick battery drain, it's not problematic for regular use. Value for Money: Although expensive, the toothbrush pays for itself when considering the savings on dental bills, primarily limited to cleanings. Comparisons: Compared to other Oral-B models, the Series 9 is more advanced, with the phone app being the most significant difference. It provides detailed information about brushing habits and areas that need improvement. Pros: Maintain Oral Health: Keep your teeth clean and healthy with advanced features. App Integration: Track your brushing habits and receive feedback on the app. Charging Options: Charge the toothbrush using the magnetic mount or the convenient travel case with an attached cable. Cons: Lack of Apple Watch Compatibility: It would be more convenient if the toothbrush worked with the Apple Watch, eliminating the need to pull out the phone for information. Additional Tips: For a clean toothbrush and to avoid hardened toothpaste, use the travel charger instead of the magnetic mount. Cleaning the head after each use and washing it with water is also recommended. Recommendation: If you're looking for a top-notch toothbrush that not only ensures oral health but also provides insightful data through a dedicated app, the Oral-B iO Series 9 is worth the investment.
J**O
It's absolutely amazing 👏! What a game changer!
I actually purchased the io 9 series on Amazon almost a month ago. I'm not happy I purchased it day's before it went on sale. It's whatever.. Honestly I have to say this toothbrush is absolutely no joke and worth every dollar I paid. The io series is great I went with the io9 series because it comes with 4 brush heads that's good for around a year or more depending on how you use them . Also the lcd screen Honestly not necessary but I love it.. Most important the performance. This toothbrush cleans better than my dentist has ... My teeth get whiter on every use even while I'm using mouth freshener paste. I can only imagine if I try out some heavy grit whitner paste. Also I'm using it on daily clean not the highest level. It's an amazing toothbrush. If the battery dies it has a 2 year warranty or you can just buy a better 14500 battery Oral-B built this unit to be easy to service. As far as mold building up that's not happening with me. I use warm water to rinse out the brush head and main unit. I almost didn't purchase this because of people talking about mold build up! Smh . Honestly rinse it off as you would any tooth brush and dry it off and also let it air out & charge in a dry area. Please do not stick sharp things like picks in the top of the brush handle. There is a rubber seal that protects water from getting into the electronics and if you poke at it black stuff will come out because the seal is made out of black rubber! I will update this review if there are any issue's. If this is all your seeing know I'm a very happy customer and it's working 💪! I do not like I paid much more than the current sale price is but it's whatever...
M**H
A baffling design flaw in a very expensive toothbrush
I bought the Oral-B iO Series 9 expecting a premium product. The toothbrush itself has a lot to recommend it, but the charging base has one of the worst design flaws I have encountered in a consumer product. The iO9 is a relatively tall, expensive electronic device, yet while charging it essentially balances upright on a small, shallow magnetic base. There is no meaningful post, socket, collar, or other mechanical support to keep the handle from tipping sideways. Because the handle is so tall, it takes remarkably little lateral force to knock it off the charger. This isn’t a hypothetical concern. I had a previous Oral-B toothbrush fall from its charger and break. With this one, I eventually stopped keeping it conveniently in the bathroom because I didn’t trust the charger to keep it secure. I actually improvised a second magnetic support against the handle when I kept it elsewhere, which dramatically improved its stability. What makes this especially frustrating is that the problem is neither difficult to foresee nor difficult to solve. Competing electric toothbrushes use charging designs that mechanically locate and support the handle. Even a modest post, recess, collar, or other positive restraint could dramatically reduce the chance of an expensive toothbrush being knocked onto a hard bathroom floor. For a flagship toothbrush at this price, this is particularly difficult to excuse. Oral-B put enormous engineering effort into the iO’s display, sensors, pressure detection, Bluetooth connectivity, brushing modes, and app integration. The company should have put comparable thought into the much simpler requirement that the toothbrush remain standing securely while it charges. Prospective buyers should know about this before purchasing because it isn’t something obvious from the feature list. If you buy one, be very careful where you place the charger
G**I
If you need a brush like this it will be worth it
Loved this toothbrush, didn’t use the app. Just found it gave me the best cleaning and most options. I have special needs, which it helped solve. 2021-2026 with a replaced battery last fall. Now it’s finally done and I’m thinking about getting a new one. Price is ridiculous for a toothbrush and for replacement heads. Twice a day use for years. Only get it if you need it.
W**D
Game Changer for Oral Hygiene – But Battery Life Falls Short
The Oral-B iO Series 9 was my first electric toothbrush, and I can confidently say it transformed my oral hygiene. I thought I had been doing a good job with manual brushing, turns out, I was wrong. The "app" integration was another surprise. I initially doubted I’d use it long-term, but it proved incredibly helpful in identifying missed areas and improving my brushing technique. While I’m unsure of the app’s absolute precision, my results have been noticeable, even my dental hygienist commented on the improvement! Now for the downside: battery life. Oral-B advertises over two weeks of battery life with two 2-minute sessions per day, but in reality, that was not even close. My unit barely lasted a week at first and eventually struggled to hold a charge for even two days. Fortunately, the warranty process was excellent—quick and hassle-free. It took exactly one week from return to replacement. That said, my replacement brush isn’t much better in terms of battery life, even after just a month of use. While this is frustrating, the improvements to my dental health outweigh the drawback, and I highly recommend this toothbrush despite the battery issue. If you get one, register it immediately to take advantage of the two-year warranty as you may need it!
A**E
This one is a game changer!
I LOVE this toothbrush!! This is NOT my first electric toothbrush :) I started with a Sonicare -which I really liked. I liked that it told you if you were brushing too hard and the different brushing modes It was about $150 but it only lasted a year or so, so that made me mad! I switched to the Oral-B Pro 1000 which was only about $50 and has lasted a very long time. I have a smaller mouth so the heads on the Oral-B work better for me. I am an aggressive brusher so the simple Oral-B Pro 1000 was really not ideal. It has a timer but nothing more. So I was wearing out the enamel on one side of my mouth. I did all this research on which one to try next and I ended up with the IO 9. I got this for $250 which was LOT, but now that I have been using it - it was totally worth it. I cannot believe how much cleaner my teeth are for the same amount of brushing time. I can feel the difference. Also I love the color to tell me if I am pressing to hard or not enough. I do switch the cleaning mode every day as well. So I do the Daily Clean at night and the Sensitive or Gum Care in the morning. The app is cool too! I love the analysis of my brushing. I heard a dentist say that we should change which hand we brush with to get even cleaning -and he is not wrong! I definitely get one side more than the other. Who knew! I only hope that this one lasts a long time since it was a LOT of money. So far it has been worth it!!
A**R
Bought it last year as a Christmas gift
Bought it last year as a Christmas gift and the battery is now done …. It did not last a great deal! We all use oral b for years, this is the first time battery life is so short
R**S
Buena calidad si lo cuidas
Si jala
S**G
beautiful
very good quality, beautiful product
A**I
منتج رائع
منتج رائع لكن السعر عالي جداً
C**N
Me encantó
Increíble
Trustpilot
5 days ago
1 week ago