Oral-B iO 7 electric toothbrushes have 5 brushing modes. With these brushing modes, you can adjust the setting to your teeth. You can select a mode for sensitive or white teeth, for example. The iO 7 models have a smart pressure sensor. This way, you know if you're brushing too hard, too soft, or exactly right. You can connect the toothbrush to the app. There, you see which teeth you brush properly or should brush better.