Experience the Oral-B Smart 4, the first connected and rechargeable toothbrush. The sleek handle of the Smart 4 4000N electric toothbrush enhances your daily brushing routine. It seamlessly connects to the Oral-B app on your smartphone, providing real-time feedback to help you get the most out of your toothbrush. While you improve your daily brushing, the unique round head of Oral-B takes care of the rest. The toothbrush removes up to 100% more plaque than a regular manual toothbrush, promoting healthier gums while keeping your smile whiter than ever and removing surface stains. Additionally, it helps protect your sensitive gums thanks to exclusive pressure control technology that reduces brushing speed and alerts you when you are brushing too hard. With Smart Coaching, you can enhance your daily brushing and oral hygiene. There’s no doubt that Oral-B is the number one electric toothbrush brand recommended by dentists worldwide. Compatible with the following replacement heads for electric toothbrushes: Cross Action, 3D White, Sensi Ultrathin, Sensitive Clean, Precision Clean, Floss Action, Tri Zone, Dual Clean, Power Tip, Ortho Care.