we build for the body
you actually have.

most health tools assume every day is the same day. kenko starts from the opposite assumption: your hormones, your sleep and your energy move on their own schedule, and useful guidance has to move with them.

we kept meeting people who had worn a tracker for years and still could not answer the simplest question: what should I do today?

your body already writes the answer every night, in temperature, heart rate and sleep. so we built a ring that listens, and an app that reads it back in plain sentences.

with love from san francisco & hokkaido,
toshi & the kenko crew

the people behind the ring

the kenko crew.

san francisco. hokkaido.

  • global headquartersutc−8
    28 Geary St STE 650 466San Francisco, CA 94108USA
  • japan headquartersutc+9
    F Village Medical Square 1F21 F Village, KitahiroshimaHokkaido 061-1116, Japan
  • tokyo officeutc+9
    Shin-Marunouchi Building 9F1-5-1 Marunouchi, Chiyoda-kuTokyo 100-6510, Japan

say hello at contact@kenkohealth.ai