0Days
Combined battery life with the PRO Charging Case. Up to 15 days on the ring alone.
Ultrahuman Blood Vision
100+ markers. Decoded.
Blood insights turned into clear lifestyle actions.
Ultrahuman Home
Your room, measured.
Air, light, noise and temperature for deeper sleep.
0Nights of sleep tracked on one system
0Countries with active ring users
ISO 27001GDPR & HIPAA compliant data handling
2019Founded by Mohit Kumar & Vatsal Singhal
Flagship smart ring Ultrahuman Ring PRO
Ultrahuman Ring PRO
More power to you.
The most powerful Ultrahuman Ring yet: a fighter jet-grade titanium unibody with on-chip machine learning, built for multi-week adventures and serious recovery tracking.
BLE 5.3 Dual-core + on-chip ML ProRelease safety
Up to 15 days battery life
Turbo Mode ≈12 days, Chill Mode 15+ days on a single charge.
Up to 250 days on-ring storage
Plus up to one year of backup in the PRO Charger — go off-grid without data loss.
Fighter jet-grade titanium
Unibody architecture engineered for long-term durability.
Improved heart-rate sensing
Redesigned PPG with better signal quality during sleep and recovery.
PRO beyond measure Every signal, and what it
Every signal, and what it
means for your day.
Movement, all day
Movement Index optimizes daily movement — not just workouts — by tracking steps, calories and non-exercise activity that drive glucose metabolism and all-day energy use.
- Steps, calories & active minutes
- Non-exercise activity (NEAT)
- 6-axis motion sensor
Your sleep, in stages
The Sleep Index breaks sleep into what matters: duration, resting heart rate, restfulness and REM, Deep and Light stages — so you know not just how long, but how effectively you slept.
- REM, Deep & Light sleep stages
- Resting heart rate & restfulness
- Snoring & breathing via Respiratory Health PowerPlug
Lock in with workout mode
See how hard you went, what it cost your body, and when you are ready to go again — with training effort mapped against recovery.
- Heart-rate zones
- Training strain vs. recovery
- Syncs with Garmin, Strava-ready platforms & TrainingPeaks
Recovery, tuned to your body
Dynamic Recovery reads HRV, skin temperature and resting heart rate in real time, then recalibrates your score as you act on its recommendations.
- Heart rate variability (HRV)
- Skin temperature deviation
- Stress Rhythm across your circadian day
Every phase, tracked
Cycle tracking, ovulation prediction and confirmation, symptom logging, unique Cycle Flags™ patterns and pregnancy insights for proactive reproductive health.
- Ovulation prediction & confirmation
- Temperature-based cycle insights
- Cycle Flags™ pattern detection
Endurance
Category-defining battery life
Up to 15 days of battery life on Ultrahuman Ring PRO.
Specifications
Ring PRO vs Ring AIR
A side-by-side technical comparison to help buyers, retailers and wellness program managers choose the right form factor.
| Specification | Ring PRO | Ring AIR |
|---|---|---|
| Battery life* | Up to 15 days (up to 45 days with PRO Charging Case) | 4–6 days |
| On-device storage | Up to 250 days | 4 days |
| Processor | Dual-core with on-chip machine learning | Single-core |
| Sensors | Temperature, redesigned PPG, 6-axis IMU | Temperature, PPG, 6-axis IMU |
| Thickness / weight | 2.65 mm (varies by size) | 2.4 mm · 2.4 g |
| Materials | Titanium unibody, PVD coating | Titanium, PVD coating |
| Charging | UltraSnap magnetic charging case, Qi wireless & USB-C | Wireless charging pad |
| Safety | ProRelease — ring can be safely cut if the finger swells | — |
| Sizes | 5–14 (custom Ultrahuman sizing) | 5–14 (custom Ultrahuman sizing) |
*Battery life measured under specific test conditions and varies with usage, settings and environment.
Connected ecosystem One platform.
One platform.
Every biomarker that matters.
Wearables, metabolic sensors, lab diagnostics and environmental monitors that feed a single data layer — and a single app.
New 
Ring PRO
More intelligence and power for every adventure.
Learn moreM2 Live Glucose Monitoring
An accurate sensor for real-time glucose levels and metabolic nudges.
Learn moreBlood Vision
100+ blood markers decoded into supplement plans and lifestyle tips.
Learn moreUltrahuman Home
A quiet yet powerful monitor for the environment you sleep in.
Learn morePerformance Lab
Longevity and athletic protocols in Bengaluru; London, Abu Dhabi, New York and San Francisco coming soon.
Learn moreUltrahumanX
Damage cover, easy swaps and priority support for Ultrahuman devices.
Learn more
Science & research Every reading,
Every reading,
built on evidence.
Algorithms are developed with a medical and sports advisory board and validated in peer-reviewed research.
Clinically validated Metabolic Score
Published in Scientific Reports (Nature Portfolio), linking the M1 Metabolic Score with insulin sensitivity and inflammation.
Finger over wrist
The finger's higher perfusion index and dense arterioles provide a richer optical signal than wrist-based wearables.
Pulsomics research program
Users can contribute anonymised physiology data to open scientific research.
For partners, teams & developers Built to scale beyond
Built to scale beyond
a single wearer.
Programs and APIs for employers, clinics, researchers and app builders deploying health tracking across markets.
UltraSignal
Developer platform to build on Ultrahuman's biomarker data stack.
For developers →UltraWork
Corporate wellness programs built on sleep, recovery and stress data.
For organizations →PowerPlugs
Modular insights: AFib detection, respiratory health, cardio adaptability and more.
Explore PowerPlugs →Women's Health
Cycle, ovulation and pregnancy insights built on temperature and HRV.
Learn more →HSA/FSA eligible
Ring AIR, Ring Rare, software plugins and Voyager Charger are HSA/FSA eligible in the US.
Eligibility →Ultrahuman Photon
Expanding the ecosystem into light and circadian wellbeing.
Discover Photon →
Available in 180+ countries · Multi-region support in the US, UK, EU, UAE, India and Saudi Arabia The Ultrahuman app All in one app.
All in one app.
Reimagined.
Built to make every insight clearer and every recommendation more meaningful — with Jade, real-time biointelligence AI connecting ring, glucose, blood and home data.
- RINGDiscreet, preventive monitoring of sleep, HRV, temperature and movement.
- METABOLISMReal-time glucose with nudges on food and exercise impact.
- VISIONAI summaries across metabolic, cardiovascular, hormonal and nutritional markers.
- HOMEAir quality, light, temperature, noise and humidity with a Room Score.
Global scale The world's sleep,
The world's sleep,
on a single system.
Millions of people track their sleep on Ultrahuman — a dataset that sharpens every algorithm, night after night.
- Nights of sleep tracked
- 0
- Countries with active ring users
- 180+
Why global partners choose Ultrahuman
Accuracy at its core.
Experience, expertise and verifiable standards behind every device we ship.
Integrated UltraFactory production
In-house manufacturing gives full control over form factor, performance testing and algorithmic accuracy.
Trusted by elite athletes
Used by UAE Team Emirates, UAE Team ADQ and other high-performance teams for sleep and HRV-driven training decisions.
Medical & sports advisory board
Products are designed with a global advisory board in adherence to international standards and best practices.
Enterprise-grade compliance
ISO27001, GDPR and HIPAA compliant, with full user access to raw markers.
Open integrations
Works with Apple Health, Google Fit, Garmin, MyFitnessPal, Fitbit, Polar, Wahoo, Suunto and TrainingPeaks.
No mandatory subscription
Core tracking and personal data access come with the device; PowerPlugs are optional upgrades.
FAQ
Questions buyers ask.
Straight answers on specs, data security, sizing and integrations.
What does the Ultrahuman Ring PRO measure?
Sleep stages (REM, Deep, Light), resting heart rate, heart rate variability, skin temperature, movement, workouts, recovery, and menstrual cycle and ovulation patterns — using a redesigned PPG sensor, temperature sensor and 6-axis motion sensor.
How long does the Ring PRO battery last?
Up to 15 days per charge (about 12 days in Turbo Mode, 15+ days in Chill Mode). With the PRO Charging Case, combined battery life reaches up to 45 days.
What is the difference between Ring PRO and Ring AIR?
Ring AIR is the lightest at 2.4 g and 2.4 mm with 4–6 days battery. Ring PRO adds up to 15 days battery, 250 days on-ring storage, a dual-core processor with on-chip ML and ProRelease safety technology.
Is there a mandatory subscription?
No. Core tracking and access to your data require no recurring fee. Optional PowerPlugs add specialised insights such as AFib detection and respiratory health.
How is health data protected?
Ultrahuman operates under ISO27001, GDPR and HIPAA compliance, and users retain full access to their raw markers.
Which apps does Ultrahuman integrate with?
Apple Health, Google Fit, Garmin, MyFitnessPal, Fitbit, Polar, Wahoo, Suunto, TrainingPeaks and more. Developers can build custom solutions on UltraSignal.
How do I choose the right ring size?
Ultrahuman uses custom sizes 5–14 that can differ slightly from standard US ring sizes, with no half sizes. Use a sizing kit first; if you know your Ring AIR size, Ring PRO fits the same.