OYN Smart Ring
Track your nights. Leave the hassle behind.
Titanium-alloy ring. Upgraded sensors. Sleep insights in the app. On-the-go charging case included.
Free OYN Ring charging case is included.
Comes with a 1-year limited warranty.
30-Day Hassle-Free Returns.
No Monthly Fees
Sleep-first wellness,made for daily wear.
Comfortable for sleep
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.