The Oral-B Genius 8100S offers an intelligent brushing system that helps you brush as your dentist recommends. The unique position detection technology assists you in cleaning all areas of your mouth, while the round brush head from Oral-B does the rest. It removes up to 100% more plaque than a conventional manual toothbrush and ensures healthier gums and a whiter smile from day one by eliminating surface stains. Additionally, the toothbrush features a customizable SmartRing and visual pressure control to protect your sensitive gums, reducing the brushing speed if you apply too much pressure. With the Oral-B Genius 8100S, you can't go wrong while brushing. It's no wonder that Oral-B is the brand most recommended by dentists worldwide. The rechargeable electric toothbrush Oral-B Genius 8100S is compatible with the following Oral-B brush heads: CrossAction, 3DWhite, Sensi UltraThin, Sensitive, Precision Clean, Deep Clean, TriZone, and Ortho Care.