Introducing QRNT Slim

A Slimmer, Smarter Ring By QALO

Engineered for everyday life. QRNT Slim is our most advanced ring yet— packing powerful biometric insights into a 2.2mm slim package.

  • Up To 7 Days Battery Life
  • No Subscription Required
  • FSA/HSA Eligible

Backed by data. Fueled by research.

0k+

Hour sleep studies

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Hour vitality studies

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Hour activity studies

The Everyday Smart Ring
Built for Movement

Accurate
We studied 915k+ hours of sleep, vitality, and movement data to build algorithms you can rely on.
Durable
Affordable
Secure

Unlock Your Peak: The QRNT Core Experience

Track heart rate, sleep, steps, and more—all day, every day—for effortless health insights.

Understand sleep, movement, and vitality in a single glance.

Q Score Image

Track every stage: awake, light, deep, REM, and even naps. Get a daily Sleep Score, plus tips to boost energy and master recovery.

Accurate vitals from finger sensors: heart rate, HRV, stress, SpO2, and temperature trends. Stay ahead with smart alerts—more precise than wrist wearables!

Tack steps, calories, and distance across 54 unique activity modes, including automatic activity detection. Up to 12.5% more accurate than popular alternatives!

Start Tracking Today

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Smarter cycle health at every stage.

Understand all four phases on a deeper level with symptom logging, cycle predictions, and personalized insights–all without a subscription.

*Currently available only to QRNT Slim users

QRNT accurately predicts the start of your period and provides tailored tips based on your unique skin temperature and heart rate data. Go deeper with easy symptom logging and a daily journal.

Take advantage of rising energy and feel your most productive. QRNT spots hormone shifts and suggests optimal workouts and nutrition accordingly.

Make the most of your high-energy phase. QRNT pinpoints your fertile window with precision, predicting ovulation for family planning or peak performance.

Tackle PMS like a pro. QRNT uses heart rate and temp data to offer self-care tips and pattern insights. Stay balanced and prepared for your period.

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Intelligent Engineering. Down-To-Earth Design.

QRNT Slim is the lightest smart ring on the market at just 2.5g– 24% thinner than competitors. That means light-as-air comfort that never stands in your way.

Why Choose QRNT?

See How We Stack Up

QALO SLIM

Affordable Wellness for All

Thickness
2.2mm
Weight2.5g/3.1g
Battery LifeUp to 7 days
Water ProofUp to 100m
Women’s Health
Women’s Health
Thickness
2.85mm/2.9mm
Weight3.1g/3.7g
Battery LifeUp to 10 days
Water ProofUp to 100m
Women’s Health
Women’s Health

Always Free

  • Core Q Score
  • Metrics
  • Insights
  • No hidden fees
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Join Thousands Moving with QRNT

"Very happy with my..."
Very happy with my Qalo ring. Easy to set up, easy to use, very comfortable. Great daily feedback.
Lorenzo C
Verified Buyer
"Perfect fit, easy purchase, and great health insights."
I recently purchased this smart ring and couldn’t be happier with it. The buying process was quick and simple, and the ring fits perfectly. It does a great job of tracking my health and provides useful insights that help me stay on top of my wellness goals. Overall, it’s both convenient and reliable—I’d definitely recommend it!
LeAnn R.
Verified Buyer
"Just pefect!"
I just got my ring and I absolutely love it! The app is easy and very cool to see everything it tracks throughout my day! I highly recommend getting this ring!
Johny
Verified Buyer

Ready to Transform Your Habits?

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