Dyson’s most overengineered gadget may have a waterproofing problem
Dyson admits a component issue but won’t say what’s failing in its $500 toothbrush.

TL;DR
- Dyson's new $499 CameraJet electric toothbrush, featuring a camera for fluid targeting, has reportedly been removed from sale worldwide shortly after its September 8 US launch.
- User complaints include water in the battery compartment and device failures within seconds of use, with some units failing less than 24 hours after unboxing.
- Dyson claims the product is experiencing strong demand and supply shortages due to production scaling, not a recall, but admits a "single component issue" affecting early batches.
- Experts, including the CEO of iFixit, suspect a waterproofing or tolerance issue is causing internal water ingress, potentially leading to the reported failures.
- Despite six years of development and 38 patents, the device's ability to handle water is questioned, with experts urging Dyson to prioritize repairability and transparency.