The screen-free OYN ring makes overnight wear effortless — no bulky wrist device required.
Sleep trends
Review sleep duration and related overnight records seamlessly in the OYN app.
Heart + HRV
Track your heart rate and HRV trends as part of your daily OYN wellness routine.
Cycle reminders
See your cycle reminders alongside your sleep, activity, and body trend records.
Wake up to clearer sleep and body trends.
Connect your OYN Smart Ring with the OYN app to seamlessly review sleep trends, heart rate, HRV, SpO2, activity records, cycle reminders, battery status, and related body insights.
Simple enough for everyday routines.
Everything you need, nothing you don’t. OYN delivers essential sleep and heart tracking, daily movement, water resistance, and magnetic charging — all at a smarter price than premium smart rings.
About 5 days
Battery built to last through your daily routine between charges.
5ATM Water Resistant
Water-resistant for hand washing and everyday use. Keep away from hot water and deep water.
Magnetic charging
A simple magnetic charging cable keeps your OYN routine easy.
No Monthly Fee
Your OYN wellness records are available without a required monthly subscription fee.
Discover what OYN helps you track.
Sleep, heart rate, SpO2, cycle reminders, and daily body trends — all in a ring designed to fit seamlessly into your routine.
Product details
Key specifications for sleep records, wellness tracking, battery, design, app compatibility, and included accessories.
Sleep & wellness +
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 & charging +
Battery life
About 5 days with typical use
Up to 15 days standby
Battery capacity
15mAh; 18mAh for size 10 and above
Charging time
About 1.5 hours
Charging method
Magnetic charging cable
Design & fit +
Model
OYN
Material
Stainless steel
Weight
About 3.6g, based on size 7
Sizes
US ring sizes 7-10
Colors
rose gold, and silver
Water resistance
5ATM for daily water resistance. Avoid hot water, saunas, and high-pressure water.
App & compatibility +
Bluetooth
Bluetooth v5.2 low energy
App
OYN 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 in the OYN app
Included in the Box
💍
OYN Ring
📦
Charging case
🔌
Charging cable
📖
Quick Start Guide
Questions before you order.
Fit, sleep tracking, app, water resistance, cycle reminders, and wellness-use answers for OYN Ring.
How do I choose my OYN Ring size?
Measure your finger before ordering and choose the size that feels secure without pressure. For sleep tracking, comfort matters as much as a snug fit.
Does OYN work with iPhone and Android?
Yes, OYN works with the OYN Ring app. For compatibility, refer to the confirmed app requirement in the product details.
Can I wear it while washing hands?
OYN offers daily water resistance. Keep it away from hot water, saunas, chemicals, and deep water. See product details for the confirmed rating.
What wellness data does it record?
OYN tracks sleep, heart rate, HRV, SpO2, activity, cycle reminders, and related body trends via the OYN Ring app. Available views depend on app version and model.
Does it support cycle reminders?
OYN includes cycle reminder support as a lifestyle reference. Please note these features are not intended for medical diagnosis, contraception, fertility prediction, or treatment.
Do I need a subscription?
Core records on OYN work without a required monthly subscription.
What peopleare saying
cam Nicholl
If you are looking at smart rings you don't want to overlook this one!!
J-bird
Great for the Price and Battery Life
Valentin Gayral
Best part? Tons of data, no monthly fee. Sleep tracking even knows when I'm just lying in bed. Love it!
Richard J
111
Danny
Great ring for sleep and step tracking. Useful adjustment set, clear instructions, and solid quality for the price.
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