[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.] This electronic toothbrush is the best. My teeth feel like I've just come from the dentist every time I use it. It has a number of great settings and keeps track of the time for you. I also love that it looks sleek and has a rechargeable battery. It also comes with a holder for multiple brush heads so my whole family can use the same base.

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!

I bought the iO Series 7G Electric Toothbrush Black Onyx three weeks ago and I am very happy I did. I have used other electric toothbrushes from Oral-B but this iO series changed the way I brush my teeth. The teeth look clean and the gums are healthy. The bluetooth connectivity from the toothbrush to the Oral-B App on my iPhone provides realtime information where I am brushing and whether it is with the right pressure. The toothbrush has pressure sensors and a colar indicator of Green (right), Blue (under), or Red that is excessive.

[This review was collected as part of a promotion.] I have the i07 Series Black Onyx toothbrush. After using it, I will never go back to a regular manual toothbrush. It has pressure sensors which is wonderful because I have a tooth sensitivity. You can download the Oral-B app and it connects with bluetooth. It's easy to set up. You will not regret getting this toothbrush.

I purchased the Black Onyx IO Series 9 toothbrush a week ago and the features are very nice, however, the traveling case is absolutely terrible. First off, it is all plastic and very cheaply made. The button does not work and I have to use force to open the case. While using force, the toothbrush and brush fall out. I talked to customer service and she was not familiar with this case and offered no support other than to, "be careful." I am very confused as to how this is not a functional issue. The reason I purchased the 9 vs. 8 was for this case. I travel a great bit and my old Oral B toothbrush couldn't hold a charge longer than 48 hours. If you do not need a traveling case, then I suggest going with a cheaper model (IO 8 or 7). The toothbrush itself is made out of plastic and slips through your hand. I love the design, but Oral B is increasing its prices and using cheap materials. My old Oral B toothbrush has some weight to it and a grip, that case was amazing. On a side note, the Black Onyx does show toothpaste. It will drip down as you brush your teeth. The larger brush head makes it difficult to hold your mouth closed to avoid this. I have a habit of removing the brush head and rinsing everything, drying, then setting aside. I do not mind doing this, but it is something to take into consideration.

[This review was collected as part of a promotion.] I have been using the Oral B iO7 Series Black Onyx for a couple of weeks. This is an awesome toothbrush. You connect to your phone through the app. Has 5 great smart modes. Comes with a smart pressure sensor which I like because my gums are very sensitive. It comes with a round brush which makes it easier to use.The carrying case it comes with is a great bonus. This is a excellent electric toothbrush.

[This review was collected as part of a promotion.] The toothbrush was very easy to put together and use. I love that the charging port is super small and it works like a magnet - just rest the toothbrush on it, and it charges. When I first got this toothbrush, I had to change the language, and it also has the option to choose the colors around the rim. I love that one button does everything. Now, whenever you use the toothbrush for less than 2 minutes (which you not be doing...haha) it gets mad, and shows a sad face, so use for 2 minutes plus and there will be a happy face on the small screen. All of the pieces come in the box along with a small pouch. It does have a buzzing sound like bees, and the vibration can be a little strong but will feel like it is actually doing a deep clean. After a while of not using, it will automatically shut off.

[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.] This toothbrush is amazing. I received it about 2 weeks ago to try and it has been amazing using it. I really look forward to brushing my teeth just to use it. It’s in different languages for you to try and has a few settings to set your toothbrush depending on what you want. A few of the settings I’ve used are daily clean, whitening and sensitive. It also has a cute little face that counts for how many minutes you have washed your teeth. Definitely recommend investing in this smart toothbrush.