Every QRNT purchase includes the ring, magnetic charging dock, USB-A cable, and two silicone covers. FSA/HSA eligible. Ships to US & Canada.

Every QRNT purchase includes:<ul><li>QRNT Ring</li><li>Magnetic charging dock</li><li>USB-A charging cable</li><li>Two silicone covers (black &amp; white)</li></ul>Setting up your ringDownload the free QALO app on <a href="#">iOS</a> or <a href="#">Android</a> to complete setup. The app is free and requires no subscription &#x2014; ever.Before you put it onQRNT rings fit snugger than standard ring sizes due to the raised internal sensors. When in doubt, size up. See our <a href="#">Ring Sizing Guide</a> for help finding your fit.A note on the charging cableThe included cable is USB-A. If your wall adapter only has USB-C ports, you&apos;ll need a USB-A adapter (not included).AvailabilityQRNT is currently available in the United States and Canada. International availability is coming soon.FSA/HSA eligibleQRNT rings qualify for purchase using FSA or HSA funds. Save an average of 30% when you pay with your FSA/HSA card at checkout.<blockquote>Note: Discounts and promotional codes cannot be applied to QRNT Smart Ring purchases.</blockquote>

What's Included with the QRNT Ring?

No subscription required. All QRNT health tracking and app features are included for free. Pay once, own your data forever.

No. The QALO QRNT ring requires no paid subscription.All health tracking, app features, and data insights are included at no additional cost. This includes sleep tracking, HRV, activity, SpO2, skin temperature, stress monitoring, and women&apos;s health features. You pay once and own your data.The QALO app is free to download on iOS and Android, and all features remain accessible for the lifetime of your ring with no recurring fees.<blockquote>This is one of the key differences between QRNT and other smart rings on the market. No monthly charges, no locked features, no expiring trials.</blockquote>

Does the QRNT Ring Require a Subscription?

The QRNT ring is water-resistant to 30 meters — safe for swimming, showering, and sweaty workouts. Avoid scuba diving or high-pressure submersion.

Yes. The QRNT ring is water-resistant to 30 meters (100 feet), making it safe for showering, swimming, sweaty workouts, and everyday water exposure.What it&apos;s safe for:<ul><li>Showering and bathing</li><li>Swimming in pools and open water</li><li>Sweaty workouts and high-humidity environments</li><li>Rain and splashing</li></ul>What to avoid:<ul><li>Scuba diving or high-pressure water submersion</li><li>Prolonged submersion beyond casual swimming</li></ul>Care tip: After exposure to saltwater or chlorinated pools, rinse the ring with fresh water to protect long-term sensor performance.

Is the QRNT Ring Waterproof?

QRNT sensors are validated in lab studies against medical-grade devices. Get the most from your data by tracking trends over 2–4 weeks.

The QRNT ring&apos;s sensors and algorithms have been tested in multiple lab validation studies, compared against medical-grade devices and other leading wearables. Here&apos;s what that means in practice for each metric.Heart RateMeasured continuously using the optical PPG sensor on the inner edge of the ring. Accuracy is highest during rest and steady-state activity. Like all wrist and finger-worn optical sensors, readings can be affected by sudden movement &#x2014; which is why the ring&apos;s accelerometer filters motion artifacts from the signal in real time.HRV (Heart Rate Variability)HRV is captured during sleep, when your body is still and the signal is cleanest. QRNT reports HRV tailored to your personal baseline &#x2014; not a fixed population average &#x2014; which makes your score more meaningful to you specifically. Normal range for healthy adults is 19&#x2013;75 ms, but your trend over time matters far more than any single number.Skin TemperatureThe QRNT Slim uses multiple temperature sensors for greater precision; the QRNT Original uses a single sensor. Both measure relative changes from your personal baseline &#x2014; particularly useful for cycle tracking, illness detection, and overnight recovery monitoring. Temperature readings are most accurate during sleep when skin contact is consistent.SpO2 (Blood Oxygen)Measured using the same PPG sensor as heart rate. Accurate for wellness trend tracking during rest and sleep. Like all consumer SpO2 devices, readings can vary with skin tone, ring fit, and movement. Not intended for medical diagnosis.Sleep StagesSleep staging uses a combination of accelerometer data, heart rate patterns, and HRV to classify time spent in light, deep, and REM sleep. Results align closely with polysomnography benchmarks in lab studies, though individual nights can vary. Trends across weeks are more reliable than any single night&apos;s breakdown.Getting the most accurate data<ul><li>Wear the ring consistently &#x2014; especially during sleep, when most baseline measurements are taken</li><li>Make sure the ring fits snugly with sensors in contact with the palm side of your finger</li><li>Give the ring 2&#x2013;4 weeks to establish your personal baselines before drawing conclusions from individual readings</li><li>Track trends over time rather than reacting to single data points</li></ul><blockquote>QRNT is a wellness device. Its readings are not intended to diagnose, treat, or monitor medical conditions. If you have health concerns, consult a qualified healthcare provider.</blockquote>

How Accurate is the QRNT Ring?

QRNT tracks sleep, heart rate, HRV, stress, SpO2, skin temperature, movement, and women's health. All data syncs to the free QALO app. No subscription needed.

The QRNT ring continuously monitors your body across three core pillars &#x2014; Sleep, Vitality, and Movement &#x2014; and combines them into a single daily Q Score that gives you an at-a-glance picture of how your body is doing.Sleep<ul><li>Total sleep time</li><li>Sleep stages (light, deep, REM, awake)</li><li>Sleep efficiency</li><li>Sleep latency (time to fall asleep)</li></ul>Vitality<ul><li>Heart Rate Variability (HRV) &#x2014; your personal readiness score</li><li>Resting heart rate</li><li>Stress score</li><li>Oxygen saturation (SpO2)</li><li>Skin temperature</li><li>Respiratory rate</li></ul>Movement<ul><li>Steps</li><li>Active calories</li><li>Heart rate zones during workouts</li><li>Automatic and manual workout detection</li></ul>Women&apos;s Health<ul><li>QRNT Original: Core cycle phase detection &#x2014; period predictions and general phase insights</li><li>QRNT Slim: Complete cycle tracking &#x2014; all four phases (menstrual, follicular, ovulation, luteal), symptom logging, fertile window estimates, hormone-shift detection, and personalized daily tips</li></ul>Q ScoreYour Q Score is a daily composite score that brings together your Sleep, Vitality, and Movement data into a single number. It&apos;s designed to give you a meaningful, honest summary of how recovered and ready your body is &#x2014; without requiring you to manually interpret every individual metric.All data is tracked automatically in the background and synced to the free QALO app on iOS and Android. No subscription required.

What Does the QRNT Ring Track?

QRNT Original: 7-10 day battery, $159.95. QRNT Slim: lightest on market, full women's health, $199.95. Compare specs to find your fit.

<h2 dir="ltr" id="isPasted"> </h2><div dir="ltr" align="left"><table style="margin-right: calc(15%); width: 85%;"><tbody><tr><td style="width: 30.0253%;">Feature</td><td style="width: 31.5932%;">QRNT Original</td><td style="width: 38.355%;">QRNT Slim</td></tr><tr><td style="width: 30.0253%;">Price</td><td style="width: 31.5932%;">$159.95 </td><td style="width: 38.355%;">$199.95 </td></tr><tr><td style="width: 30.0253%;">Thickness</td><td style="width: 31.5932%;">2.85&#x2013;2.9 mm</td><td style="width: 38.355%;">2.2 mm (24% thinner)</td></tr><tr><td style="width: 30.0253%;">Weight</td><td style="width: 31.5932%;">3.1&#x2013;3.7 g</td><td style="width: 38.355%;">2.5&#x2013;3.1 g (lightest on market)</td></tr><tr><td style="width: 30.0253%;">Battery Life</td><td style="width: 31.5932%;">Up to 10 days</td><td style="width: 38.355%;">Up to 5 days</td></tr><tr><td style="width: 30.0253%;">Temperature Sensors</td><td style="width: 31.5932%;">Single</td><td style="width: 38.355%;">Multiple (more precise)</td></tr><tr><td style="width: 30.0253%;">Women&#x2019;s Health</td><td style="width: 31.5932%;">Core</td><td style="width: 38.355%;">Complete (full phase insights)</td></tr><tr><td style="width: 30.0253%;">Best for</td><td style="width: 31.5932%;">Max battery &amp; durability</td><td style="width: 38.355%;">Everyday movement &amp; comfort</td></tr><tr><td style="width: 30.0253%;">Silicone Covers</td><td style="width: 31.5932%;">Yes</td><td style="width: 38.355%;">Yes (even more interchangeable options)</td></tr></tbody></table></div> Choose QRNT Original if the longest battery and durability matter most to you.&#xA0;Choose QRNT Slim if you want the lightest, most comfortable everyday wear. <blockquote>Both models are FSA/HSA eligible &#x2014; save an average of 30% when purchasing with your FSA/HSA card at checkout. Note: Discounts and promotional codes cannot be applied to QRNT Smart Ring purchases.</blockquote>

QRNT Smart Ring

What's Included with the QRNT Ring?

Does the QRNT Ring Require a Subscription?

Is the QRNT Ring Waterproof?

How Accurate is the QRNT Ring?

What Does the QRNT Ring Track?

QRNT Original vs. QRNT Slim: Which Smart Ring Is Right for You?