If you're looking for an electric toothbrush that does it all, the Sonicare DiamondClean Smart may be worth the investment. This top-of-the-line brush features advanced cleaning technology that removes up to 10x more plaque than a manual toothbrush and up to 7x more stains, making it ideal for those who are serious about their oral health. In addition to its powerful cleansing capabilities, the DiamondClean Smart also comes equipped with a host of smart features that make brushing easier and more effective than ever before. For example, the brush head will automatically adjust to each user's unique brushing style, and the included app provides real-time feedback on your progress so you can see (and improve) your results over time.