The app is nowhere near accurate. I start in lower left third, and the app shows I'm starting in lower right, or sometimes in the upper right third. Because of this, an area will show as being completely finished, when I haven't even brushed on one of the surfaces (inside, outside, or top). Also, sometimes the toothbrush doesn't mark the 30 second intervals, so I don't know how long I've brushed. This is the second iO 7 I have owned, because I returned the first because I thought it was malfunctioning for these reasons. I talked with customer service before returning, and their response was to replace it. Obviously, the problem is not with the toothbrush, but with the app. Fix it.

[This review was collected as part of a promotion.] Overall I really enjoy this electronic toothbrush. The onboarding was exciting, and easy to learn how to set up. The brush vibrates at each 30 second mark to help you keep track of time. Honestly, it's not much work to brush my teeth, I think that's no surprise to anyone, but this luxury adds a bit of fun into the process. We all deserve some fun every now and then!

[This review was collected as part of a promotion.] The Oral-B iO7 Series Rechargeable Toothbrush is sharp-looking, as well as intelligent. There are five modes in which to choose your tooth-brushing preference. The smart pressure sensor helps to protect gums, and enamel, by indicating optimal cleaning pressure. It has an interval timer, so I know that I’ve brushed for the proper amount of time. Since the toothbrush uses gentle micro-vibrations, it feels as though I’ve had a professional cleaning. And, if you’re curious about your brushing habits, you can even get feedback by connecting the product to your mobile device, via bluetooth. It charges quickly, and simply, atop a magnetic base. By far, the best toothbrush I have ever used!

[This review was collected as part of a promotion.] This tooth brush is like the president of all tooth brushes, from its timer to being able to log your teeth brushing skills on the app. Everything about this tooth brush is awesome. Well worth the money, would recommend to ANYBODY!

[This review was collected as part of a promotion.] I originally owned a white OralB and when I saw the black one I had to have it. It's super sleek and works just as great as the other one I had. Love the travel case it comes with to. I discovered that the battery will last like 5 days without the charger. Only figured that out when I went on vacation and forgot the plug. Lol! Love the additional settings that you can use which is an upgrade from my other one. And the cool little graphics are neat too! I love it.

[This review was collected as part of a promotion.] This tooth brush is amazing!! I love how the sleek look, how it fits in my hand, how i can customize the light to be pink! The buttons are so easy to use and the changing of settlings is so easy to do. I love how easy the brush head can be changed and how the magnetic style to it for charging! Has diff settlings for sensitivity, your gums, tongue, and to whiten your teeth. The settings are really nice and easy to use. This brush is by far the best powered one i have ever used!!! Highly recommend Only thing I am having problems with is my phone is having hard time finding the tooth brush on the app. I have enabled the WiFi on the tooth brush, but my phone says searching forever and never finds it. I have googled on how to do this and seems i can’t get it to connect, but I’m not worried about that more of the function of the brush that is amazing!!!

[This review was collected as part of a promotion.] I absolutely love this toothbrush. I’ve used manual toothbrushes for nearly all of my life. When these style toothbrushes first came out I tried them and wasn’t overly impressed so I went back to my manual. This one has me thinking differently. After brushing, my teeth feel like they have just been cleaned by the dentist. The toothbrush settings are straightforward and easy to use. The five different settings do vary and seem to do what they are designed to do. I appreciate the 2 minute timer and the 30 second interval notices. I feel it allows an evenly distributed cleaning. I find that I pay more attention to my brushing habits with this as well. The charging base is convenient and sleek. The travel case is nice as well, though over prolonged use, I wonder how the case will hold up as it seems to be made of a lighter plastic material. Overall I would definitely recommend this toothbrush!

[This review was collected as part of a promotion.] I love using this toothbrush. The battery life is truly impressive, able to use many times without having to recharge. The bristles are the right hardness - the vibrations are at a good level as well. I feel like my mouth is cleaner and my teeth are possibly brighter!

[This review was collected as part of a promotion.] I have always wanted to try an electric toothbrush been have always been skeptical. One I received and tried the iO7 Series Black Onyx I was hooked. It makes my teeth feel great and also makes sure I brush long enough. Will definitely recommend!

I purchased my Oral-B QI toothbrush few months ago, and while I’m brushing my teeth, I’ve noticed black residue that falls out from my toothbrush as I’m brushing. As I looked further to find out the reason I found disgusting mold buildup inside the toothbrush head and inside the motor cavity of the toothbrush. It’s so disgusting that I’m brushing my teeth every day with a brush that holds so much disgusting mold. This is a very poor design of Oral-B! I have used Oral-B toothbrushes for many years and loved them but don’t waste your money on the Oral-B QI!