Customer Reviews: Oral B iO Series 3 Electric Toothbrush with (1) Brush Oral B iO Series 3 Electric Toothbrush iO3 3 Modes Refill Change ORAL B iO Series 3 Electric Toothbrush Ice Blue Ultimate Clean (with 3 Electrical Dental Care iO Series 3 Ultimate Clean 'Electric Oral B Other Oralb Io Series 3 Electric Rechargeable White Color. Key Features Oral Bs revolutionary iO technology removes up to 100% more plaque* for healthier gums 3 Smart Modes to personalize your brushing: Daily Clean, Whitening, Sensitive Smart Pressure Sensor signals red, white or green to alert you if youre brushing too hard, too softly or with just the right pressure. Smart Ring flashes a 360 ring of colors to celebrate completion of a dentist recommended 2 minutes of brushing iOs smart tracker reminds you when the brush head needs to be changed with a yellow LED light, to keep your clean at its best *vs regular manual toothbrush