








Product description

Size & Fit–Is this smart ring the same size as a regular ring? What if I order the wrong size?
No. Please purchase the O Ring sizing kit first. Our smart ring’s sizing differs from standard jewelry rings. You must use our official sizing kit before purchasing — wear the tester ring to confirm comfort.
Subscription & Fees–Do I have to pay a monthly subscription to use all the features? Are there any hidden fees?
No. Opove smart ring requires no monthly or annual subscription. All core health features are included for life with your one-time purchase. There are no any hidden fees.
Battery & Charging–How long does the battery last? Does frequent charging shorten battery life?
A full charge supports 7 to 12 days of real-world use (depending on feature usage). And the battery is optimized for long-term durability, so you do not need to worry about short-term degradation.
After-Sales Support–What happens if my ring gets damaged, stops working or cannot connect to the app?
We have a professional and responsive after-sales service team. If you experience any issue, please come to us directly through your order.
Find Your Perfect Fit Before You Buy
Order the O Ring Sizing Kit to discover your ideal size before purchasing.
Wearing Guide
Select your preferred finger and wear the ring with the logo facing your palm.
Wear it for 24 Hours
Wear the sizing ring for at least 24 hours to determine your most accurate fit in real-life conditions.
Buy the O Ring
Once you’ve found your ideal size, purchase your O Ring.

Size Before You Buy 
Step 1:
Purchase O Ring Sizing Kit.

Step 2:
Purchase your O Ring.

Step 3:
Place the ring in the charging case to activate.

Step 4:
Download the opove app to pair with your O Ring.

【Get the Sizing Kit First】O Ring smart ring’s sizing differs from standard jewelry rings. You must use our official sizing kit before purchasing — wear the tester ring to confirm comfort and accuracy. This step is critical to avoid returns and ensure reliable heart rate and HRV tracking
【Innovative Stress Tracking】Opove fitness tracker ring tracks HRV in the background 24 hours a day, automatically quantifies stress levels, and helps you manage stress through personalized insights. Easily track your body’s responses without disrupting your daily life
【Comprehensive Sleep Management】O Ring records and analyzes deep sleep/light sleep/REM/wake duration in detail, providing core vital signs data such as sleep score, heart rate, blood oxygen, and HRV, turning complex sleep information into understandable scientific advice to help you manage your sleep
【One Ring, Multiple Functions】One opove fitness ring handles all your daily health management needs-Step tracking, activity tracking, mood tracking, menstrual cycle prediction for women, basal body temperature monitoring, and more. Plus continuous performance improvements and new feature additions provide a customized and evolving experience
【No Subscription Fee】All practical and fun features are free with the companion app (App Name: opove).O Ring ensures that you can continuously experience real-time health tracking and personalized insights.(Compatible with both iOS and Android)
【Comfortable and Waterproof】Weighing only 3 grams, made of durable titanium, 5ATM waterproof, no need to remove it when washing hands or showering; O Ring is specifically designed for all-day wear, offering comfort and durability, with a stylish look that complements your outfit
$239.99