Customer Reviews

We've selected our favorite reviews from actual, paying customers.

  • A wonderful addition to my kitchen

    My chef's knife is wonderful to use, the ease of cutting and the accuracy really is a game changer. At first the knife seemed a little heavier but it is balanced very well for my small hand. I'm really enjoying this knife and it's been my "go to knife" for cooking. Just waiting for my impulse induction cooktop to arrive and I'll be very happy to cook.
    ★★★★ Christine A. (verified buyer)

  • First test

    First test...how will it do cutting a fresh loaf of sourdough with a solid, hard crust? It does, like butter. Hard to believe how well it cuts. Love it.
    ★★★★ Bruce S. (verified buyer)

  • It works

    I was worried the handle would be awkward but the knife feels very good in a pinch grip. The effect is variable between foods and does help in all cases some less than others.

    ★★★★ Peter B. (verified buyer)

  • Amazing knife!!

    I like it a lot. It looks beautiful and works as expected. The blade itself arrived razor shaft and so far is maintaining its edge well. I do love the mirror finish. My only wish would be for it to have a movement sensor and not a button. I personally find it a bit awkward to keep the button pressed while cutting, particularly as the handle is quite thick. It would probably require a bigger battery and more parts (and expense), but I would definitely be interested in another sonic knife in the future if a reliable movement sensor was able to be incorporated without adding thickness to the handle.

    ★★★★ John B. (verified buyer)
All Customer Reviews

Press Reviews

All reviews are independent and unpaid (not sponsored). We occasionally provide loaner units to qualified journalists.

  • "The beauty of an ultrasonic blade like this is that it can handle everything your old cutlery is meant for, but with the touch of a button, it delivers sharpness unlike anything you've experienced before."

    Engadget

  • "Seattle Ultrasonics C-200 knife review: a powered knife even a pro chef can love. 4 out of 5 stars"

    The Guardian

  • "I was skeptical, but I sliced through a tomato with almost no resistance at all — it felt like the knife was falling through."

    The Verge

  • "OMG this knife is incredible!!!!"

    IJustine

  • ”It might just be the best new product I’ve tried all year.”

    Delish

  • "It could genuinely alter the course of the industry forever."

    Gear Patrol

  • "…The knife feels almost nonstick, as the vibrations — created by PZT-8 piezoelectric ceramic crystals — keep food from clinging to the blade"

    Uncrate

  • "From stubborn tomato skins to tough root vegetables, the C-200 aims to turn kitchen prep from physical work into effortless precision."

    CNET

  • "While Heimendinger’s knife still features a great piece of sharp Japanese san mai AUS-10 steel, it’s the handle that does the heavy lifting, with electronics that produce more than 40,000 vibrations per second, making the knife behave sharper than it physically is."

    Geek Wire

  • "The Seattle Ultrasonics C-200 chef's knife is an ultra-advanced piece of equipment for at-home chefs to incorporate into their preparation routine that will greatly reduce their effort, while also increasing their cutting capabilities."

    Trend Hunter

  • "Seattle Ultrasonics has designed the world's first ultrasonic chef's knife for home cooks, dubbed the C–200. …despite only being announced this week, the knife has already garnered huge attention on social media."

    Daily Mail

  • "The C-200 pairs traditional craftsmanship with ultrasonic technology for smoother, cleaner cuts."

    Seattle Mag

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