Built for individuals who refuse to leave performance on the table

Your body is running
below its potential

It's 3PM. You're on your third coffee and you still can't explain why. Yunox tells you exactly which variables are costing you — before the day is already lost.

Start Optimizing See the data

What you actually get

If you can't measure it, you can't manage it.

Yunox gives you the clinical-grade data that tells you exactly why you performed — or didn't — and what to change tonight.

Anabolic Recovery

Your testosterone window, measured nightly

Yunox calculates your Anabolic Recovery Score using deep sleep percentage, nighttime HRV, and resting heart rate — the three variables most directly tied to natural T-production. Know your number before your feet hit the floor.

98% PPG accuracy vs clinical polysomnography
Invisible Design

No screen. No glow. No compromise.

2mm titanium. No notifications. No light. No vibrating alarms at 2am. Your partner doesn't know it's there. Your wrist looks clean. Your data runs 24 hours a day in total silence — exactly the way a precision instrument should work.

2.3g lightest smart ring on the market
True Ownership

Pay once. Own everything. Forever.

No subscription. No cloud lock-in. No company between you and your own biometric data. Export raw CSV at any time. We make money selling hardware — not selling you. That alignment of incentives changes everything.

$0 monthly fees — ever
Precision Variables

Kill the exact variables killing your edge.

Track how your 9pm espresso, late dinner, room temperature, and alcohol precisely move your HRV and deep sleep percentage. Stop guessing. Get the exact levers — and pull them. This is what it means to manage what you measure.

14+ tracked biomarkers correlated nightly
The difference between fine and fully optimized

The transformation

The difference between fine and fully optimized.

Before Yunox

Waking up fine. Guessing at everything.

  • Third coffee by 2pm. No idea why you're foggy.
  • Bulky watch snagging sheets, buzzing at 2am
  • Sleep scores that explain nothing about your T-levels
  • A slow, invisible decline in drive you can't name
  • Paying rent on data your own body produced
After Yunox

Waking up with data. Owning every variable.

  • Anabolic Recovery Score waiting before you rise
  • 2mm ring tracking silently all night — invisible
  • Exact variables killing your edge — identified and cut
  • The quiet confidence of a man running at full output
  • Your data. Your hardware. Zero monthly fees.

Your questions answered

Everything you need to know.

Yunox tracks 14+ biomarkers continuously through the night: sleep stages (deep, REM, light), heart rate variability (HRV), resting heart rate, blood oxygen saturation, respiratory rate, and skin temperature. Every morning you wake up to a Recovery Score that tells you exactly how well your body rebuilt itself overnight — and which variables moved the needle.
Yunox uses finger-based PPG technology validated at 98% accuracy against clinical polysomnography — the gold standard in sleep medicine. The finger has 4× the capillary density of the wrist, which is why every hospital in the world uses finger-based pulse oximetry. Most smartwatches measure from the wrist. We don't.
Absolutely. Yunox is for anyone who wants to understand why they feel the way they do — and what to do about it. Whether you're a parent running on empty, a creative whose focus comes and goes, an executive making high-stakes decisions, or simply someone who wants to feel better without guessing. Your body produces data every night. Yunox reads it.
Three things set us apart: (1) No subscription — ever. Pay once, own everything forever. Oura charges $5.99/month, Whoop charges $30/month. We charge zero. (2) No screen — no notifications, no blue light, no device competing for your attention at night. (3) Finger-first accuracy — clinically validated PPG, not wrist-based approximation.
Your data is encrypted on-device and synced only to your personal account. We do not sell, share, license, or analyze your biometric data for any third party — ever. You can export your full raw data as CSV at any time. We make money selling hardware, not monetizing you. That's not a marketing position — it's how we're built.
No monthly fee. No tiered access. No features locked behind a premium plan. One purchase includes the Yunox ring, the full app (iOS and Android), all 14+ tracked biomarkers, lifetime data storage, free firmware updates, and raw data export. Everything. Forever. The only thing we'll ever ask you to buy again is a new ring if you upgrade.
Yunox is built from aerospace-grade titanium with PVD scratch-resistant coating. IP68 waterproof to 100m — swimming, surfing, showering, no problem. 7-day battery so you're not charging it every other day. Beta users wore it through 8 months of daily training, international travel, and outdoor adventure with zero failures.

If you can't measure it, you can't manage it.

Your performance gap has a name. Find it.

Join the men who stopped guessing and started optimizing. One ring. Clinical-grade data. Zero subscriptions. Your body — fully measured, finally managed.

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Free shipping. 30-day no-questions return. No subscription — ever.