Early Prime Day steal: Philips top-tier DiamondClean 9500 smart toothbrush drops to 149.96

Mashable's Best: E-readers, robovacs, laptops, earbuds, smart home and more Mashable Selects In My Bag Look Up Creator Playbook Say More AI at School Safety Net Versus Trending Now Back to School Good Connection: Uplifting stories for a digital age All Series Early Prime Day steal: Philips' top-tier DiamondClean 9500 smart toothbrush drops to $149.96 Matt Ford is a freelance contributor to Mashable. All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Mashable may earn an affiliate commission. Deal pricing and availability subject to change after time of publication.