Dyson has built a toothbrush with a camera in it, for $499

Dyson’s CameraJet toothbrush costs $499 and includes a 100-k-pixel macro camera that captures 28 images per second, detecting gaps within 100 ms and directing a conical rinse jet to those spots. It runs on 16 million lines of code trained with 470 000 dental images, claims 69% more plaque removal than premium rivals, features dual-type bristles, a 12.5 ml rinse tank refilled in three seconds, RFID-linked replacement alerts, and Wi-Fi/Bluetooth connectivity to the MyDyson app for guided cleaning and feedback.