There is a razor clam hiding in the Philips Sonicare announcement, and it is not the $379.99 price tag, though that is a good one. The previous DiamondClean is still on shelves, discounted down from $429.99, which means Philips is doing something quietly radical: it is selling the new thing for less than the old thing. The Next-Generation DiamondClean 9900 Prestige adds capabilities, ships with a built-in display, and undercuts its predecessor by fifty bucks. That is not how this usually goes. Usually, you pay a premium for the word "Prestige" and get a slightly different charging base. Here, the company is essentially admitting that last year's model was overpriced, or that the new one is a loss leader, or that they really, really want you to upgrade before the broader global rollout lands in 2027.
We have to talk about the Dyson in the room, because we got our hands on Dyson's camera-toting toothbrush, and we have thoughts. The CameraJet costs $499, which is $119 more than this Philips, and early adopters are reporting issues. A toothbrush with a camera is a wild concept, a genuinely feral piece of engineering that we respect for existing at all, but it is also a product that invites you to watch your own molars on a screen while you brush. The Philips does not do that. It tracks your brushing, presumably with sensors and a display, and it does not floss for you, which the summary helpfully clarifies. That is the honest pitch: this is a smart toothbrush that costs less than the weird one, and it probably works better because it is not trying to film your gums.
So what do we tell a reader who asks, "Should I buy this?" First, wait for the reviews that test the tracking against a stopwatch and a dentist. Second, remember that this is a device with a built-in display, and displays need batteries, and batteries age, and a toothbrush is something you drop on a tile floor at 6 AM. The previous iteration is still available and discounted, which means you can get last year's proven model for even less than $379.99 if you do not need the screen. But if you are the kind of person who wants the new thing, who already had a tab open on that announcement in July, the price drop is the detail to latch onto. Philips is not charging you for the privilege of beta testing. It is charging you less, and that is either a sign of confidence or a sign that the market for $400 toothbrushes is smaller than they thought.
The real question is not whether the brush works. It is whether the display becomes a gimmick you ignore after week two, or a habit that actually changes how you brush. We would tell you to watch the 2027 rollout, because that is when the global launch either confirms the price as a permanent shift or reveals it as a launch special. And we would remind you that Dyson's camera brush is out there, more expensive and glitchy, which means Philips has room to be the sensible choice. That is a strange sentence to write about a toothbrush, but here we are, sharp and narrow and surfacing fast. Stay spooty.