The Philips Sonicare Diamondclean 9900 Prestige delivers a deep, professional clean that’s powered with AI… here’s our full review When you purchase through links on our site, we may earn an ...

Overall ease of use of the toothbrush including evaluation of the weight, handle comfort, ease of removing the brush-heads, etc. The Philips Sonicare 9900 Prestige is part of the Toothbrushes test ...

The Philips Sonicare 7100 isn’t quite as eye-wateringly expensive as the Philips Sonicare 9900 Prestige, but at £350 (around $450 or AU$715) it’s still extremely pricey for a sonic toothbrush ...

The Philips Sonicare DiamondClean Smart 9300 is part of the Toothbrushes test program at Consumer Reports. In our lab tests, Adults Electric Toothbrushes models like the DiamondClean Smart 9300 ...