based on your hormonal rhythm and 5 sleep stage analysis, kenko gives you daily goals designed around your body's needs.
hormonal rhythms
calculated without any blood draw. hormones allow personalized recommendations and a unique biological fingerprint
the 7 hormones behind every kenko insight
cortisol
melatonin
+5
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5 stages classified. including the ratio most wearables can't calculate
awake
rem
N1
N2
N3
read more
5 sleep stages
only kenko can calculate the N1/N2 tario, which is one of the strongest signals for long-term health risk
science you can trust
built over 20 years of biological signal research
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
backed by experts in the field
from Trusted institutions where the kenko team brings experience and expertise
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
frequently asked
questions
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?
$299
then $4.99/month
ships [DATE]
30-day return policy · free sizing kit · worldwide shipping