Philips’ new smart toothbrush shows you where you didn’t properly brush

The latest addition to Philips' Sonicare line of smart electric toothbrushes could take the guesswork out of your brushing routine. The Next-Generation DiamondClean 9900 Prestige uses a third-generation AI model to provide real time feedback on how you're brushing through a glowing ring on its base, while a touchscreen highlights areas of your mouth that may need more attention when you think you're done. The Sonicare Next-Generation DiamondClean 9900 Prestige is expected to launch in Europe…