79-year-old James Dyson pitches $499 AI-powered CameraJet that brushes and flosses simultaneously

dilipkay · x · 2026-09-03

In a tight 7-minute keynote, James Dyson pitched the AI-powered CameraJet ($499), a device that brushes and flosses at the same time.

Problem framing: people average 45 seconds of brushing (vs. 2 minutes recommended), and flossing is 'archaic'—toothbrushing tech hasn't changed in 40 years.
The approach: a 1mm camera with a 100k-pixel macro lens spots plaque and gaps between teeth; an ML algorithm trained on 500k mouth images recognizes plaque targets; the camera films while you brush ('gap optical targeting').
Engineering details: 28 images per second, timed slightly out of sequence with the brush's 58,000 oscillations per minute; a dome over the camera keeps visibility during spraying; a conical water jet (vs. competitors' needle jets) for full plaque coverage.

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