Dyson Won't Say What's Wrong with Its CameraJet Toothbrush

Dyson’s CameraJet is a $499 electric toothbrush that adds a macro camera and a tiny rinse reservoir to aim fluid precisely between teeth using a “Gap Optical Targeting” system trained on hundreds of thousands of dental images. After six years of development and dozens of patents, the brush launched in early September but was pulled from sale in several countries within days as users reported water inside the battery compartment and devices failing within seconds or hours. Dyson maintains it has isolated a problem in early production batches and is supporting affected customers while scaling up supply, but it won’t say which component is at fault, how many units are affected, where sales have stopped, when shipments were halted, or why it hasn’t issued a formal recall.

Customers have vented on forums and disappointed reviewers reported rapid failures. Repair specialists suspect a waterproofing failure - faulty gaskets, O-rings, adhesive curing, or tolerance issues that allow rinse fluid to enter internals, explaining charging, overheating, and startup problems. The situation exposes a striking oversight: a toothbrush that carries and expels liquid appears to lack reliable sealing at scale. Critics say this should prompt better manufacturing quality control and greater investment in repairability, including making parts and repair information available so faulty units can be fixed or reworked rather than quietly withdrawn.