Every other ring just tracks. Halo actually changes outcomes.
Most wearables give you charts and leave you alone. Halo feeds your biometrics directly to Kai — who translates every signal into action.
Every smart ring on the market does the same thing.
They track. They chart. They hand you a dashboard and say "here you go". Halo does something no other ring does: it feeds your data directly to an AI that was trained to change your outcomes.
WHAT OTHER RINGS DO
- → Track your temperature
- → Show you an HRV number
- → Score your sleep
- → Give you a "readiness" score
- → Hope you figure out what to do with it
WHAT HALO + KAI DO
- → Detect your temperature shift was 2 days late
- → Flag that your HRV pattern suggests high cortisol
- → Adjust your supplement protocol this week
- → Change your nutrition plan to support progesterone
- → Tell you exactly what to do and why
Six data streams. One integrated picture.
Every sensor feeds directly to Kai. Nothing sits in a silo.
Basal Temperature
Reveals hormonal shifts standard BBT misses
HRV
Real-time stress — most correlated with fertility
Sleep Architecture
Deep vs. light cycles impacting hormones
Blood Oxygen
Cellular energy affecting egg quality
Heart Rate
24/7 trends tracking autonomic health
Activity & Recovery
Exercise impact — more isn't always better
Medical-grade accuracy. On your finger.
The ring makes Kai smarter. Kai makes the ring useful.
Other rings show you a dashboard. Halo sends your data to Kai in real time. Kai sees patterns across weeks and adjusts your supplements, nutrition, and guidance automatically. The ring makes Kai smarter. Kai makes the ring useful. Neither works as well alone.
People don’t just wear it. They rely on it.
Medical-grade accuracy. 10-day battery. No subscription. Ever.
"I waffled between this and the Oura ring. So glad I pulled the trigger — everything I need at half the price. I needed something that actually told me what was wrong and what to do! Love this so much."
"The AI recommendations actually help you improve your numbers, not just stare at charts. Comfortable, sleek, data syncs perfectly."
"The sleek titanium design is stylish and waterproof, and the battery lasts over a week. I forget I'm wearing it!"
"Got one for me and my husband. We compare stats every night — it's become our thing. Way better priced than competitors."
"This smart ring is the ultimate blend of technology and style. Feels comfy, looks great, and has all the features I need."
Your fertility deserves more than guesswork.
Take the free quiz. Let Kai find your pattern. Get a personalized protocol built for your body.
Non-Invasive
Glucose Monitor
The Halo Ring doesn't just track your cycle. It's the first wearable to monitor your blood sugar continuously, non-invasively—giving you insights no other fertility device can.
Blood sugar controls everything
High or low blood sugar doesn't just affect your energy—it directly impacts your fertility, your cycle, your hormones, and your ability to conceive.
When your glucose spikes or crashes, your body releases cortisol (stress hormone), disrupts ovulation, and makes it harder to get pregnant.
The Halo Ring catches these fluctuations before they become problems.
And because it talks to Kai, your entire AI care team responds in real-time.
Your AI Team Responds Instantly
When your glucose changes, your care team adapts
Why This Matters for Fertility
Better Fertility
Stable blood sugar = balanced hormones. When your glucose is controlled, your body can ovulate properly, maintain progesterone, and support implantation.
Healthier Pregnancy
Managing glucose before and during pregnancy reduces risk of gestational diabetes, supports fetal development, and improves outcomes.
Overall Health
Blood sugar control reduces inflammation, improves sleep, stabilizes mood, increases energy, and lowers long-term disease risk.
What Oura Can't Do
Oura tracks sleep and activity. We track the metabolic signals that actually impact your fertility. Glucose monitoring + AI-powered interventions = a system that doesn't just observe—it acts.