The sleek white handle of the Smart 4 electric toothbrush improves your brushing habits. It seamlessly connects with the Oral-B app on your phone and guides you with real-time feedback to brush better. While you are improving your brushing routine, Oral-B's unique round head does all the rest. It removes up to 100 more plaque than a standard manual toothbrush for healthier gums and it starts making your smile whiter as of the first day of brushing by removing surface stains.