Vibrating Kitchen Knife

Seattle Ultrasonics unveiled it at CES 2026 to the kind of journalist hush usually reserved for foldable phones. The clever bit is the handle: nothing in it moves. You’re holding a perfectly normal kitchen knife, and the blade in front of it is a tiny industrial machine running quietly enough that you’ll forget it’s on until the courgette you’re chopping politely disappears.

The spec:

• Blade vibrates ~30,000 times a second, inaudibly
• Edge is only ordinarily sharp; the wobble does the work
• Silent handle — no transmitted vibration

The marketing copy uses words like “precision” and “next-generation”. The reality is that you’ve spent a fortune to chop a tomato slightly faster.

A gift for: no one. Who is spending £494 on a knife? Put your wallet away, Dexter.