[This review was collected as part of a promotion.] The iO9 Series Black Onyx tooth brush works great! It has different settings depending on what you want- daily cleaning to teeth whitening. The colored ring lets you know when you’re teeth are clean and you can move on to the next area.

[This review was collected as part of a promotion.] Love this toothbrush, it has it's own app to make sure you brush properly, it also has 5 brushing modes which are great. The battery life is also great and has a battery display to let you know how much is left. This is so much better then my old brush. I got to say I love it.

I doubted that the claim that these can whiten teeth, and I just got a glimpse into my mirror and said out loud, "Oh my God, my teeth! They're so white!" I like the way this round head cleans each tooth. It's why I chose this quiet IO7 series over the Sonic. My dentist uses a round electric brush, so why wouldn't I? Works great; the electric brush is not very loud at all compared to the motors of others I have heard. Easy to use. The app is just meh, though. It's a cool idea, but it does not get the back of my teeth correct when brushing. I love the red/green light on the toothbrush that tells me if I am brushing too hard. After my 2 minutes, I feel like I left the dentist every time I brush. I wake up in the morning with a clean feeling in my mouth. I got a great deal on this toothbrush on the Oral-B website. I will be upset if this brush stops working after my 60 days is up. I had read a few reviews elsewhere where purchasers said the brush just stopped working, no warning. Fingers crossed. I cannot believe this clean dentist visit type feeling. This brush is awesome!

This is the best brush that I've ever had. I had a dentist appointment today. The hygienist commented on my teeth the whole time. She said that I have the cleanest teeth she's ever seen. She said that she was trying to find plaque and couldn't. I was her easiest "cleaning" job she's ever had. She asked what toothbrush I used and was very amazed.

[This review was collected as part of a promotion.] I love everything about this toothbrush. It has a sleek design that is easy to handle. The carrying case is great to take with you on trips. I love that you can set the brush up to your liking. I changed the colors on mine and it's like a light show when I brush my teeth. These are 4 different cleaning settings that you can use. Each setting is slightly different when it comes to speed of the brush. My favorite thing about it is the timer. At the one minute mark the brush gives a slight vibration to let you know you are halfway done. The longer you brush the happier the smiley face on the brush becomes. One feature I haven't messed with yet is the app. Yes this toothbrush is Bluetooth enabled and syncs to the app on your phone. I love this brush and will be my go to for as long as it stays alive.

[This review was collected as part of a promotion.] This toothbrush blows my mind! There are so many cool features that I’ve never seen a toothbrush have before. I love that it is customizable and has a great case for traveling. I also love the built in timer that lets you know when you hit 2 minutes or if you need to brush a little longer. There are so many brushing modes to choose from. My favorite mode is the sensitive mode for the people with the more sensitive teeth! This toothbrush is absolutely amazing and I would definitely buy another!!

Well I represent four out of five dentists… I learned of the iO before release almost 2 years ago and couldn’t wait to try it. I find this the best tooth brush ever made. I have used it for 2 years now and love it. I have purchased it for family and friends and recommend it to all my patients.

[This review was collected as part of a promotion.] I received this recently and it works great!This electric brush is not very loud at all compared to my sonicare one.I love the looks of it,Not cheaply made and it really does whiten my teeth.I'm so happy I got this as I have recess above a tooth from brushing too hard so my dentist told me to get a brush that tells me if I'm brushing too hard. I love the red/green light on the toothbrush that tells me if I'm brushing too hard.Makes my whole mouth feel clean and refreshed.

[This review was collected as part of a promotion.] I have been using this toothbrush for about three weeks now. It truly is fantastic, it has 5 smart modes. It will tell you how long you brushed. It tells you if your not brushing hard enough. It tells you if your brushing too hard. Ive never used an electric toothbrush before. But I can tell such a difference in how my teeth feel, so clean!.

[This review was collected as part of a promotion.] Love the toothbrush a lot but the characteristics that make the toothbrush so expensive and unique aren’t working. For example, the brush offers great opportunities through Bluetooth and connection to the oral b mobile app. Due to the lack of connectivity, I have to give the 3/5 rating. I may have received a defect toothbrush.