Smart Ring for Health,
Sleep & Fitness Tracking
A smart ring is the most advanced wearable for tracking sleep, heart rate, HRV and recovery. Loop Ring delivers powerful AI-driven health insights in a sleek wearable designed for everyday life.
20+
Health Metrics
~4g
Ultralight
144h
Battery Life
IP68
Waterproof
What Is a Smart Ring?
A smart ring is a miniaturised wearable computer worn on your finger. Packed with advanced biosensors, a smart ring continuously monitors your body's vital signs—heart rate, blood oxygen, skin temperature, and movement—24 hours a day, 7 days a week.
Unlike a smartwatch that sits on your wrist, a smart ring sits closer to the blood vessels in your finger, allowing for more accurate PPG (photoplethysmography) readings. This makes smart rings particularly powerful for sleep tracking, HRV monitoring, and overnight health measurement.
The best smart rings—like Loop Ring—go further by pairing raw sensor data with AI algorithms that generate personalised insights, readiness scores, and daily health recommendations tailored to your unique physiology.
The smart ring that tracks
everything that matters
Loop Ring monitors 20+ health metrics around the clock, turning raw biometric data into AI-powered insights you can act on.
AI Sleep Tracking
The smart ring tracks Deep, REM, and Light sleep stages all night. Wake up to a full breakdown of your sleep quality, recovery score, and personalised tips to sleep better.
Heart Rate & HRV
24/7 continuous heart rate monitoring and Heart Rate Variability (HRV) tracking give you a real-time window into your cardiovascular health and nervous system state.
SpO₂ Blood Oxygen
Blood oxygen saturation tracking overnight helps detect respiratory issues, altitude adaptation, and sleep apnea signals—all from your smart ring.
Body Temperature
Continuous skin temperature tracking detects early illness signals, ovulation windows, and long-term trends that tell you how your body is adapting to stress.
Activity & Readiness Score
Steps, active calories, and a daily Readiness Score calculated from sleep, recovery, and HRV data—so you always know whether to train hard or rest.
AI-Powered Insights
Loop Ring's AI engine turns 20+ biometric signals into clear, daily health recommendations. This is what makes Loop the smartest smart ring on the market.
AirSense™ Air Quality
An exclusive Loop feature: real-time air quality intelligence (AQI, PM2.5, humidity) correlated with your own biometrics—so you know exactly how your environment is affecting your body.
UnityHealth™ Face Scan
Measure 30+ vitals in 60 seconds using your phone camera—blood pressure estimation, stress index, cardiovascular risk, and more. No extra hardware required.
Why Loop Ring is the best smart ring
More features, better value, and no hidden fees—Loop Ring leads the smart ring category.
No Subscription Fees
Unlike Oura Ring or Whoop, Loop Ring has zero monthly fees. Pay once and access every feature forever.
Wireless Charging Case
A portable charging case keeps your ring powered on the go—no other smart ring in this price range includes one.
Medical-Grade Sensors
PPG, accelerometer, temperature, SpO₂, and HRV sensors combined with AI give you clinically meaningful data.
Lightweight & Comfortable
At just ~4 grams, Loop Ring is one of the lightest smart rings available. You will forget it's on your finger.
FSA / HSA Eligible (US)
US customers can purchase Loop Ring using pre-tax FSA or HSA dollars—making it a smart, tax-advantaged health investment.
Works with iOS & Android
The Loop Health app is available on both iPhone and Android, with a clean interface designed for daily health monitoring.
The smart ring with no subscription
Most smart rings lock your own health data behind a paywall. Loop Ring is different—pay once, own your data forever.
One-Time Payment
Every feature—sleep, HRV, SpO₂, AirSense, AI insights—included free, forever.
No Recurring Fees
Oura charges $5.99/mo. Whoop charges $19.99/mo. Loop charges $0/mo.
Free Updates Forever
Your ring gets free firmware updates and the app receives new AI features regularly.
Smart ring comparison: Loop vs Oura vs Ultrahuman
See how Loop Ring stacks up against the top smart rings on the market.
* Based on publicly available information as of early 2025.
Loved by 10,000+ smart ring users
Real people getting real health insights every day.
"As a doctor, the HRV and SpO₂ accuracy genuinely impresses me. I recommend Loop to patients focused on preventive health—the data is clinically meaningful."
Dr. M Saha
Doctor
"The sleep insights blew me away. It caught patterns in my recovery I never noticed. At 4 grams, I literally forget I am wearing it."
Arijit Saha
IT Professional
"The UnityHealth face scan gives me 30+ vitals in under a minute. Combined with the ring data, I have a complete picture of my health every morning."
Ankita Gupta
IT Professional
Smart Ring FAQ
Everything you need to know about smart rings and Loop Ring.
The smartest smart ring.
Starting at $299.
No subscription. 20+ health metrics. AI insights. Free delivery. Join 10,000+ users who track their health with Loop Ring every day.
Shop Loop Smart RingFree delivery · 7-day returns · 1-year warranty · FSA/HSA eligible