Search  for anything...

Oral-B iO Series 9 Electric Toothbrush With 6 Brush Heads, Black Onyx

  • Based on 6,220 reviews
Condition: New
Checking for product changes
$279.88 Why this price?
Save $24.49 was $304.37

Buy Now, Pay Later


As low as $46.65 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, May 6
Order within 3 hours and 16 minutes
Available payment plans shown during checkout

Style: iO9 Power Extra Refills Bundle


Color: Black


Features

  • COMPATIBLE ONLY WITH ORAL-B iO REFILL HEADS
  • You Will Receive 1 Oral-B iO Series 9 Black Onyx electric toothbrush, 4 Oral-B iO Ultimate Clean replacement brush heads, and a powerful charging travel case
  • PERFECT PRESSURE: Signals red when brushing too hard and green when brushing just right
  • COMPATIBLE ONLY WITH ORAL-B iO ELECTRIC TOOTHBRUSH HANDLES
  • You Will Receive 2 Oral-B iO Ultimate Clean replacement brush heads
  • Combines Oral-B unique round brush head with gentle micro-vibrations for a surprisingly enjoyable experience and healthy teeth and gums for life

Brand: Oral-B


Color: Black


Size: 7 Piece Set


Material: Nylon


Age Range (Description): Adult


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 6

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Klarna Pay in 4
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Amazing clean
Style: iO9 Power Handle Color: Aqua Alabaster
I’ve had another popular brand of electric toothbrush for years and decided after doing some reading to give an Oral B a try. I got the io 9 on a Prime Day deal and can’t believe how clean my mouth feels. The app is cool for coaching the first couple of times, but I don’t use it regularly. It’s good to see where you might not be getting enough coverage to help you adjust your brushing routine. The barrel is the brush head is a little larger, which took some getting used to. I also had to use the sensitive mode until is was used to the rotating head. Overall, really like this unit and got a second one for my spouse. Highly recommend. ... show more
Reviewed in the United States on November 4, 2023 by DanM

  • Amazing
Style: iO9 Power Handle Color: Rose Quartz
I got this as a gift and it is by far one of the best gifts I’ve ever received. This toothbrush has power and makes my teeth feel so clean. My breath is noticeably better as it cleans my tongue so much better than any other toothbrush I’ve had. It links to your phone to ensure full coverage and tells you how much pressure you’re using. If you’re considering this, I’d get off the fence. It’s pricey but absolutely worth it. ... show more
Reviewed in the United States on November 5, 2023 by LO

  • Slightly misleading
Style: iO9 Power Handle Color: Aqua Alabaster
Good so far. Really quiet compared to non IO versions. I feel the charging travel case is a bit misleading. The case has no battery. It has to be plugged into power and the toothbrush in it to actually charge. This seems to be the case with both IO 9 and 10. Given that much cheaper versions like Genius 8000 have a battery, and the IO 10 at $400 doesn't is seriously disappointing. ... show more
Reviewed in the United States on November 7, 2023 by Mladen Bajic

  • Best Electric Toothbrush Ever!
Style: iO9 Power Handle Color: Black
I've been using an electric toothbrush for many years and I'm not talking about the drugstore cheapo versions (although I've tried those as well). I typically go for top of the line in almost anything I buy because I really believe you get what you pay for. With some things you can cut corners, but when it comes to my health or my teeth, that's not the time to make the cut. The most I've spent on an electric toothbrush in the past was around $180 for the Sonicare Diamondclean. It lasted me for many years, so if you break down the price over years, it wasn't all that expensive on an annual basis. Besides, we have spent that much going out to dinner at a really nice restaurant (that's how I typically justify the price of more "costly" items)! The Sonicare recently started acting up with it's brushing performance and the power button was getting hard to press, so I decided to replace it. I was satisfied with it's performance over the years, but wanted to try a round brush head this time and Oral B is the leader in that category. There are so many options with Oral B so I had to do a lot of research, starting at the top, of course. I was skeptical about the hefty price tag for the IO9, so I didn't immediately opt for the best of the best. I read many reviews and watched several videos for the IO, Genius, and Pro lines before finally deciding to just bite the bullet and go for it! The main feature I wanted with the IO9 that the others don't have is the 3D AI tracking. I have been getting really lazy with my brushing - walking around the house doing other things and really not paying attention to how effectively or how long I was brushing each area of my mouth. Yes, my Sonicare had a quadrant timer, but it didn't track how much time and effort was spent on all the zones. The IO9 tracks every surface of your teeth - inside, outside, chewing, left, right, front center and front bottom. It gives you a visual display on your phone as you're brushing so you know exactly when to move to the next area. It is taking me a little longer than normal - around 3 minutes (including tongue) to effectively brush everywhere, but that's okay, it's what I needed. I read some reviews and watched some videos that said the brush couldn't determine where it was in your mouth and I have not found that to be the case. My guess is that it partially learns your brushing habits to improve the tracking. I always brush in the same order, left to right, top to bottom, so it hasn't had any issues with accurately determining where the brush is in my mouth. I also like the pressure sensor that turns red when you're brushing too hard or your chosen color when not brushing hard enough. I didn't realize I was brushing harder than I should until I bought this toothbrush. The tongue cleaning mode is also useful as it's set for 30 seconds. I wasn't brushing nearly 30 seconds before this toothbrush. In summary, this is the best toothbrush I've ever used. Here are the pros and cons in my opinion: Pros: - Excellent, powerful cleaning backed by ADA approval - 3D tracking of all tooth surfaces with the app for a thorough clean - Tongue cleaning mode with set time - Larger brush head covers more area - Quiet - Fast charging - Sleek and attractive appearance and small footprint - Magnetic base that charges fast Cons: - Price - The brush head is a little large. I have a smaller mouth and it fits, but some might find it a little uncomfortable - My biggest gripe is that two people can't use the app unless you either use the same cell phone or constantly pair and unpair the base with each of your phones - The travel case only holds one brush and it doesn't use a USB charger like every other travel device ... show more
Reviewed in the United States on August 4, 2022 by Julie

  • Cleans brilliantly!
Style: iO9 Power Handle Color: Black
I wanted to update my toothbrush which was an old Oral-B from about 2016. At first I tried the Sonicare Diamond because there was a great sale. I quickly went back to Amazon and got this Oral B. The Sonicare vibrated so much that my hand hurt, and it was too loud. I am so happy. I love it my new Oral-B! It cleans great, the battery lasts me about 10 days, that's with brushing 2x per day for a total of 4 minutes each day. I love the light that lets you know about the pressure. The only thing I've noticed is that if my finger ends up on the handle as I am brushing, the light turns blue. As soon as I move my finger back down it turns green again. I also LOVE that the base of the brush is different. It no longer has the indentation/hole for charging, where gunk could build up in there. As for the app, I used it for a bit, and it was good but not for me. Honestly, too time consuming and I know how to brush my teeth without an app. I hope to have this brush for a long time. ... show more
Reviewed in the United States on September 8, 2023 by Chloe1498

  • Most powerful toothbrush I’ve ever owned!
Style: iO9 Power Handle Color: Black
It’s easy to use and gives me the cleanest brush over ever had in my life. My only disappointment is it didn’t come with a power cord for the traveling case charger. When I finally found it on the oral b site it’s $25 + $55 to ship to my location :(
Reviewed in the United States on November 6, 2023 by Kaha'i

Can't find a product?

Find it on Amazon first, then paste the link below.