the world's first AI ring to track hormonal rhythms and 5-sleep stages.
AI-powered actionable health insights
kenko turns your health data into answers.
see what's working, what can be improved, and what to do about it.
ask kenko anything
get answers from your data. hipaa compliant.
your hormones, your rhythms
make daily decisions based on your hormonal rhythms
sleep recovery
menstrual cycles
physical readiness
mental focus
Professor Yasue Mitsukura Keio University
Doctor of Engineering
and Medical Doctor
Founding patent holder of the noise rejection used by Sony and Bose headphones, she spent 20 years building the algorithms inside kenko before a single ring was manufactured. Both algorithms validated against the medical gold standard, peer-reviewed, and published.
20
years of research
$10.6M
in R&D
12,000
blood draws
2,000
nights of psg tests
5 sleep-stage algorithm
polysomnography validated
validated against polysomnography, the medical gold standard for sleep classification, across 2,000 nights of clinical data.
SAGE · 2020
peer-reviewed
hormonal trend algorithm
12,000 blood draws
validated against 12,000 clinical blood draws, the medical gold standard for hormone measurement, across 1,000 participants.
IEEJ · 2021
peer-reviewed
heart rate
SpO₂
HRV
activity
titanium alloy
3 mm
silver
rose gold
black
american innovation.
japanese precision.
CEO
Toshi Kimbara
Founder with hands-on experience scaling wearable health products globally.
CSO
Yasue Mitsukura
Patent holder, Sleep Determining Device. Keio University.
President of Japan Operations
Kenichi Harano
Former Board Member of Asics Holdings
Advisory Board Member
C. Lloyd Mahaffey
Former Senior Apple Executive
How does Kenko track hormones without a blood draw?
Is there a subscription?
What makes this different from other smart rings?
When does it ship?
Is my health data private?
What sizes are available?
pre-order
$299
then $4.99/month
ships [DATE]
the wearable that finally tells you
what to do.
30-day return policy · free sizing kit · worldwide shipping
pre-order