The iO is Oral-B's best technology: Clinically Proven 100% Cleaner teeth & healthier gums in 1 week versus a regular manual toothbrush. The i05 coaches you to a perfect clean with a Smart Display, this is real time personalized coaching. The accompanying App detects the position through Artificial Intelligence. Oral-B is on your team for your everyday brushing task. A Round head and gentle micro-vibrations, the Magnetic interaction delivers smooth, harmonious motion through a Synchronized cleaning action (micro-vibrations synced with oscillations). A Built-in-2-Minute Timer ensures an even easier experience, helping you get an optimal clean on all your teeth. Delivering the perfect pressure is done by having a Pressure Sensor. The Pressure Sensor Indicates optimal cleaning pressure and warns of over pressure. With an accompanying travel case, you'll have a fresh clean everywhere you go. Best of all, it is brought to you by Oral-B-the #1 brand used by dentists worldwide. * *Based on surveys of a representative worldwide sample of dentists carried out for P&G regularly. Do not use on children under age 3. Replace brush (head) every 3 months or sooner if brush head becomes worn.