What blew me away was how naturally it fits into life. No overthinking, no tech headaches. Just steady, smart advice that builds on itself. You feel the difference before you even realize it.
$269.00
Ring sizing is managed by our concierge team after you make a purchase. Follow our ring sizing guidance with a perfect fit guarantee.
Ships in 10 days due to high demand.
Lightweight, precision-built, and forged from hardened steel - designed to capture the signals that shape your longevity.
Your personal health companion. Coaching and science-backed programs across everything that drives your longevity.
A compact, travel-ready case that keeps your ring powered up and protected - wherever life takes you.
A soft, durable pouch designed to safeguard your blēo ring on every step of your journey.
Built with the same precision trusted in top clinics – so you can track what truly matters, with real-world accuracy.
The two strongest indicators of your cardiovascular fitness, recovery, and overall longevity – essential for your future health.
Daily coaching that adapts to your habits, goals, and biometric data – helping you make small changes that build real, lasting results.
blēo goes beyond core metrics to reveal how well you’re really aging – and shows you how to slow it down, starting today.
From food choices to meal timing, blēo helps you optimize what you eat to support your energy, recovery, and longevity goals.
Sleek on the outside. Serious on the inside.
The blēo ring combines elegant form with medical-grade sensors – so it looks as good as it performs.
Life doesn’t stop. Neither should your ring. With days of battery life, blēo keeps moving with you.
Crafted from hardened steel, blēo is light on your hand, built with care, and designed to move through life with you.
Medical-grade sensors. Built to catch what matters - the quiet signals of change, the signs of tomorrow's health.
Water-resistant to 50 meters. Ready for swims, showers, and the days that don't go according to plan.
What blew me away was how naturally it fits into life. No overthinking, no tech headaches. Just steady, smart advice that builds on itself. You feel the difference before you even realize it.
Started as a 100-day experiment. Now it’s just my lifestyle.
The Longevity AI doesn’t just spit out numbers – it teaches you. Best coaching experience I’ve had, full stop.
I’m not a ‘biohacker’ or anything – just someone who wanted to feel better. blēo helped me understand how my nutrition was holding me back, and gave me realistic ways to improve without stress. Now I sleep better, recover faster, and honestly feel lighter every day.
The ring’s sleek, minimalist – exactly my style. You don’t notice it’s there. But you do notice what it’s doing for you.
It’s not just another tracker. It’s a quiet little revolution for your health.
More than metrics.
Personalized coaching, programs, and precise, real-world guidance – across every part of your health.
In 100 days, not only will you see the difference, you’ll feel it.
Track what matters, when it matters. blēo helps you stay consistent - even the simplest routines can shape your years ahead.
Don't just track your movements - learn your rhythms, understand your needs, and gain coaching that feels natural, personal, and effortless.
Chronological age is just a number. Uncover your biological age - learn how your choices, habits, and small wins shape a longer, healthier life.
Snap a photo, and your nutritionist does the rest - breaking down your meals in real time so you can eat with awareness, not doubt.
blēo builds a nutrition plan around your goals, your preferences, and your life - because good health starts with food that fits.
Calorie targets set for your longevity, your goals, your life - no crash plans, no guesswork. Only guidance that adapts as you do.
From cycling to basketball to housework, Oura automatically detects over 40 activities with heart rate to give you credit for every move you make.
Heart rate variability reveals what your body’s really saying about stress, recovery, and balance. blēo keeps track, so you can stay in tune.
VO₂ Max is a powerful marker of your health and endurance. blēo helps you understand and improve it, one day at a time.
From cycling to basketball to housework, Oura automatically detects over 40 activities with heart rate to give you credit for every move you make.
From cycling to basketball to housework, Oura automatically detects over 40 activities with heart rate to give you credit for every move you make.
blēo's bedtime guidance helps you find the routine your body needs - for confident mornings and lasting energy.
From cycling to basketball to housework, Oura automatically detects over 40 activities with heart rate to give you credit for every move you make.
From cycling to basketball to housework, Oura automatically detects over 40 activities with heart rate to give you credit for every move you make.
No monthly fees. No locked features. Just everything we offer – from personalized coaching to programs – included from day one.
Lightweight, minimal, and built to last.
Medical-grade sensors, long battery life, and a build tough enough for life’s biggest challenges.
316 Stainless Steel
IP68 Waterproof (Up to 50m)
Height: 8.0mm
Width: 2.85mm
Diameter: 16.5 – 22.3mm (US standard ring sizes)
Weight: 3.5 – 4g (Varies by ring size)
Medical grade HR/SpO2 Sensor
Body temperature sensor (±0.2°C)
Accelerometer
Multisport activity tracking
Sleep tracking
Stress monitoring
Heart rate tracking
Heart rate variability (HRV) measurements
VO2 Max
Respiratory monitoring
Skin temperature tracking
Blood oxygen saturation (SpO2) monitoring
14.5 – 21.5mAh Lithium Battery (Varies by size)
Up to 10 days of battery life
Magnetic USB Type-C Charger
50+ sports modes
Automatic activity recognition
Step counting
Calories burned tracking
Inactivity alerts
Bluetooth connectivity
Android & iOS App
Integration with The Longevity AI
Android 5.1 or higher
iOS 9.0 or higher
Resting heart rate decreased from 60 bpm to 50 bpm
Biological age decreased from 44 to 37
Biological age decreased from 38 to 33
HRV increased from 62 ms to 78 ms
Biological age decreased from 61 to 54
HRV increased from 68 ms to 83 ms
HRV increased from 60 ms to 72 ms
HRV increased from 61 ms to 76 ms
Deep sleep increased from 1.8 hrs to 2.4 hrs per night
Biological age decreased from 65 to 57
VO₂ Max increased from 41 to 48 ml/kg/min
Biological age decreased from 46 to 38
Deep sleep increased from 16% to 24% per night
Resting heart rate decreased from 56 bpm to 49 bpm
Biological age decreased from 49 to 42
Biological age decreased from 59 to 52
VO₂ Max increased from 37 to 46 ml/kg/min
Deep sleep increased from 1.9 hrs to 2.7 hrs per night
Biological age decreased from 52 to 44
© 2025 Longr Holdings Inc.
1007 North Orange Street | DE 19801 | U.S.A
Once your purchase is complete, our concierge sizing team will contact you via email to ensure you get the perfect fit.
For the best fit and sensor accuracy, we recommend wearing the ring on your index, middle, or ring finger.
Our sizes align with standard US ring measurements.
Your ring size will be confirmed by our sizing concierge after checkout and is covered by our Perfect Fit guarantee.
Ships in 10 days due to high demand.
Please note: Now available for immediate international dispatch!
Orders typically arrive within 5-10 business days.
Questions, suggestions, reflections?
Let’s crack your longevity code.
Be among the first to experience blēo.
