58bpm
4 bpm below your 30-day baseline — a strong recovery signal.
Digital medical ring · Second generation
Wear the next generation
Clinical-grade heart, oxygen and temperature sensing in 2.4 grams of titanium. No screen. No strap. Seven days on a single charge.
- ECG-grade accuracy
- Waterproof to 100 m
- 7-day battery
The hardware
Engineered to disappear.
A grade-5 titanium shell, a sensor array that reads from the inside of your finger where the signal is strongest, and a cell that lasts a week. Nothing on it you have to look at. Nothing on it you have to charge every night.
- Shell
- Grade 5 titanium
- Weight
- 2.4 g
- Water
- 100 m
- Battery
- 7 days
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What it measures
Your body, in numbers you can actually read.
Six signals, sampled continuously and turned into a single daily readiness score. Every number below is a sample reading, animated the way the app shows it.
Overnight average. Dips below 94% are flagged.
+0.2°C
Deviation from your personal baseline, not absolute.
86score
Deep 1h 48m · REM 1h 52m · Light 4h 02m
64ms
+8% this week
Higher variability means a calmer, better-recovered nervous system.
Readiness
91
One number for the morning. Built from tonight's heart rate, HRV, temperature and sleep — so you know whether to push or rest.
The benefits of a digital medical ring
Choose Ringus to monitor vital parameters and gain health clarity.
Ringus reads heart rate, blood oxygen, skin temperature and movement around the clock, then turns the raw signal into something you can act on — no screen, no strap, and no daily charge to remember.
Get in touch
99.4%
Clinical accuracy
Validated against medical-grade reference devices for heart rate, blood oxygen and skin temperature.
7-Day
Battery life
A full week of continuous monitoring on a single charge, so the record never has gaps in it.
100 m
Waterproof
2.4 g
Titanium, grade 5
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How it works
Three steps to clarity.
Put it on. Forget about it. Read the story in the morning.
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01
Wear
Any finger, any hand. The sensors read from the palm side, where capillaries sit closest to the skin.
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02
Sync
Seven days of readings stored on the ring, synced to your phone whenever it is nearby. Encrypted end to end.
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03
Understand
A readiness score each morning, trends across weeks, and a one-tap report your clinician can actually use.
Validation
Accurate enough to trust. Quiet enough to forget.
- Clinical accuracy
- 99.4%
- Nights recorded in validation
- 12,400
- Reference devices
- 3
- Average daily wear
- 23.1h
Membership
Own the ring. Choose how much it tells you.
Monthly
Yearly Save 20%
Ring
$299one-time
The hardware, no subscription. Heart rate, SpO₂, temperature and sleep, forever.
- Titanium ring + charger
- Live vitals and nightly summary
- 7-day on-ring storage
- 2-year warranty
Membership
$8/ month
Readiness, trends and early warnings. Everything the ring knows, explained.
- Daily readiness score
- 90-day trends and baselines
- Illness and temperature alerts
- Share with one clinician
Clinical
$19/ month
For clinicians and coaches following more than one person.
- Multi-patient dashboard
- Raw data export (CSV, FHIR)
- Threshold alerts by SMS
- Priority support
Ringus is designed and validated to medical-device standards, but it is sold as a wellness product. It does not diagnose or treat any condition; it gives you and your clinician continuous, accurate data to talk about.
In internal validation against three medical-grade reference devices, heart rate, blood oxygen and skin temperature agreed 99.4% of the time within clinical tolerance. Reading from the palm side of the finger is what makes that possible.
Seven days of continuous monitoring. The charger is a small dock; an empty ring is full again in about an hour, which most people do while they shower.
No. The ring works without it: live vitals and a nightly summary are yours for good. Membership adds the readiness score, long-term trends, alerts and clinician sharing.
US sizes 6 to 13. Every order ships with a free sizing kit first; your ring is made once you confirm the fit.
On the ring until it syncs, then encrypted on your phone and in your account. We do not sell it, we do not train on it, and you can export or delete everything in one tap.
Get early access
Ready to wear the next generation?
Join the list and we will send a free sizing kit when your batch opens.