COLMI Ring 2 features a refined 7 mm band—12.5% narrower than COLMI Ring 1. Its slimmer silhouette looks more like everyday jewelry and is designed to feel less bulky between your fingers, whether you wear it throughout the day or overnight.
Choose the size that feels secure without pressure, especially for overnight wear.
Popular upgrades
COLMI Ring 2
Ring design:
Classic
Color:
Black
Ring size:
7
Free COLMI Ring Cover included.
In stock. Ships within 1-2 business days.
30-Day Return Guarantee.
No subscription fees.
COLMI Ring 2
Classic / Black / 7
$59.98
Wellness, made to look like jewelry.
Sleep, heart, SpO2, and cycle reminders.
No wrist screen. No required subscription fee.
Made for sleep, work, and everyday movement.
Looks like jewelry. Works like a wellness ring.
Choose the finish that fits your hand and your routine. COLMI Ring 2 keeps the same core wellness experience across its main variants, with differences in appearance, finish, and exterior process.
COLMI Ring 2 is designed for screen-free tracking through sleep, work, and daily routines. The slim ring format is easier to keep on overnight than a bulky wrist device, while still fitting naturally with your everyday jewelry.
Choose the size that feels secure without pressure, especially for sleep.
Cycle and body trends
Follow your body trends through the month.
Your routine can feel different across the month. COLMI Ring 2 helps you follow cycle reminders alongside sleep, heart rate, HRV, SpO2, and activity records in the QRing app, so you can notice body trends without wearing another screen.
Cycle features are designed for lifestyle reference and personal reminders, not medical diagnosis, contraception, fertility prediction, or treatment.
QRing app and battery
Your wellness records, without a monthly fee.
Connect COLMI Ring 2 with the QRing app to review sleep, heart rate, HRV, SpO2, activity, cycle reminders, battery status, and related body trends. Core QRing records are available without a required monthly subscription fee.
With about 5 days of battery life and daily water resistance, Ring 2 is built for ordinary routines between charges.
Explore what Ring 2 helps you follow.
Sleep, heart, SpO2, cycle reminders, and daily body trends in a ring designed to fit your routine.
Sleep Comfortably Overnight
Sleep Comfortably Overnight
Sleep is one of the clearest reasons to choose a smart ring over a smartwatch. COLMI Ring 2 is screen-free and lightweight, making it easier to keep on through the night while it records your sleep routine in the QRing app.
Review sleep duration, sleep-stage records, overnight heart rate, and related wellness trends to better understand how your nights change over time.
Key Benefits
Sleep duration and sleep-stage records See how long you slept and how your night was recorded across different sleep stages.
Overnight heart rate and HRV insights Review heart rate and HRV trends as part of your general wellness routine.
Comfortable for bedtime A slim ring format makes it easier to keep tracking while you sleep, without a bright wrist screen.
Cycle & Body Trends
Cycle & Body Trends
Your body can feel different across the month. COLMI Ring 2 helps you follow cycle reminders alongside sleep, heart rate, HRV, SpO2, and activity records, giving you a simple way to notice lifestyle patterns in the QRing app.
Use these records to plan rest, movement, and daily routines with more awareness of your own rhythm.
Key Benefits
Cycle reminder support Use QRing reminders to keep track of your cycle timing and related routine changes.
Body trend awareness Compare sleep, heart rate, HRV, SpO2, and activity records over time to notice changes in your daily rhythm.
Smarter self-care routines Adjust rest, activity, and wellness habits based on how your body feels each day.
Cycle features are for lifestyle reference and personal reminders only. They are not intended for medical diagnosis, contraception, fertility prediction, or treatment.
Heart, HRV & SpO2
Heart, HRV & SpO2
Wellness is easier to understand when you can see patterns over time. COLMI Ring 2 records heart rate, HRV, and SpO2 data through the QRing app, giving you a simple way to follow your body trends.
Instead of focusing on one number, use your records to notice how sleep, activity, stress, and routine changes may relate to the way you feel.
Key Benefits
Heart rate records Follow daily heart rate data as part of your wellness history.
HRV insights Review HRV trends that may help you understand changes in rest, stress, and daily routine.
SpO2 records View blood oxygen records for general wellness reference.
Everyday Fit, No Subscription
Everyday Fit, No Subscription
COLMI Ring 2 gives you the core smart ring experience without pushing you into a high-price device or a required monthly subscription. It is built for women who want useful wellness records, simple app access, and a ring they can actually wear every day.
The clean ring shape works with daily outfits, while about 5 days of battery life supports ordinary routines between charges.
Key Benefits
Looks like a real ring A slim, jewelry-like shape makes it easier to wear with your normal style.
No required subscription fee Access core QRing records without a required monthly membership.
Approachable smart ring value A practical entry point for sleep, heart, SpO2, activity, cycle reminders, and body trend records.
Your health journey, worn every day.
See real routines from creators who wear COLMI Ring 2 for sleep, daily movement, and everyday wellness tracking.
COLMI Ring 2COLMI
Product details
Key specifications for health records, battery, design, connectivity, and compatibility.
Health
Sleep tracking
Sleep duration, sleep trends, and nightly rest patterns
Heart rate & HRV
Heart rate and heart rate variability trend tracking
Blood oxygen
SpO2 trend tracking for wellness reference
Stress & temperature
Stress and temperature trends for everyday wellness insights
Battery
Battery life
About 5 days with typical use
Up to 15 days standby
Charging time
About 1.5 hours
Charging method
Magnetic charging cable or magnetic charging dock, depending on selected variant
Design
Finish options
Stainless steel and ceramic finishes are available depending on selected variant
Weight
Around 3.5g depending on size and finish
Sizes
Size range varies by finish; check the selected variant before purchase
Colors
Stainless steel and ceramic finishes have different color options
Connectivity
Bluetooth
Bluetooth v5.2 low energy
App
QRing app
Compatibility
Android 5.1+ and iOS 9.0+
Activity & smart features
Daily activity
Steps, distance, and calories
Multi-sport mode for everyday movement records
Convenience features
Remote camera and find ring
Female cycle reminders
Gesture controls and ring mini games on supported Ring 2 variants
Included in the Box
COLMI Ring 2
Charging case
Charging cable
Quick Start Guide
Questions before you order.
Fit, app, water resistance, cycle reminders, and wellness-use answers for COLMI Ring 2.
How do I choose my COLMI Ring 2 size?
Measure your finger before ordering and choose the size that feels secure without pressure. If you are between sizes, choose the size that feels comfortable for overnight wear.
Does COLMI Ring 2 work with iPhone and Android?
Yes. COLMI Ring 2 connects with the QRing app. The recommended system requirement is Android 5.1+ and iOS 9.0+.
Can I wear it while washing hands?
COLMI Ring 2 is designed for daily water resistance. Avoid hot water, saunas, chemicals, and deep-water use, and check the product details for the confirmed water-resistance rating.
What wellness data does it record?
COLMI Ring 2 records sleep, heart rate, HRV, SpO2, activity, cycle reminders, and related body trends through the QRing app. Available views may vary by app version.
What are SpO2 records used for?
SpO2 records show blood oxygen data for general wellness reference in the QRing app. They are not intended to detect, diagnose, treat, or monitor any medical condition.
Does it support cycle reminders?
QRing includes cycle reminder support for lifestyle reference. These features are not intended for medical diagnosis, contraception, fertility prediction, or treatment.
Do I need a subscription?
No required monthly subscription fee is needed for core records on COLMI Ring 2.
Is COLMI Ring 2 a medical device?
No. COLMI Ring 2 is designed for general wellness records and lifestyle reference. It is not intended to diagnose, treat, cure, or prevent any disease.
What is the difference between Ring 2 variants?
COLMI Ring 2 variants share the same public product family. The main differences are appearance, finish, and exterior process; the core configuration is planned to remain the same across the upgraded Ring 2 variants.
What peopleare saying
Lynn Lively
Absolutely in love. It tracks everything I need and still looks so trendy.
Mekayla Grice
This ring is great, and I love that I don’t have to pay for the app.
Lexi
I love checking my results every morning. The app is simple to use and makes the ring easy to stick with.
Brittany Lee
Super flattering and easy to wear. It tracks sleep, activity, steps, heart rate, body temperature, stress, and cycle reminders.
Nikki Herrera
Works perfectly and feels like a much more expensive smart ring, but at a much better price.
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