Smart Ring for Women&ampMen with Charging Case &amp 5-Day Battery: Track HR SpO2 Sleep - IP68 No Subscription Fee - iPhone/Android (Silver ，8)

Check the Size Before Purchase Before buying the Smart Ring, we strongly suggest that you refer to the size chart and carefully measure the circumference of your finger. This will ensure you get the most comfortable wearing experience and easily avoid any unnecessary returns or exchanges. Health Ring for Women s Wellness 24/7 Monitoring Smart ring for women tracks menstrual cycles stress trends connect symptoms fatigue, cramps with sleep quality data via AI analysis, enabling holistic health management without subscriptions. Advanced Sleep Tracker Personalized Recovery Insights This health ring for men and women analyzes deep/REM sleep with 92 accuracy reduce nighttime wake-ups by 30 using smart rings guided breathing exercises, ideal for high-stress lifestyles. 5-Day Power With Charging Case No Subscription Health Ring Qi-enabled health ring delivers 5-day battery 15 extra charges smart rings survive travel/swimming IP68), outperforming 3-day competitors. All-Day Fitness Tracker Activ