Specifications Hign-concerned Chemical:None Waterproof Grade:5ATM Model Number:For choice smart ring Display screen:No NFC Support:No Function:Message Reminder Activity Tracked:Activity Tracker,Steps Tracker,Distance Tracker,Calorie Tracker Metrics measured:Heart Rate Monitor,Blood Pressure Monitor,Sleep Monitor,Blood Oxygen Monitor,Stress Monitor Item Weight:10 Case Material:Alloy Certification:ce,DOT,FCC,EAC Brand Name:Ola Esporte Battery Capacity(mAh):80 For Choice Smart Ring Men Women Heart Rate Monitor Smart Ring Blood Oxygen Sleep Health Monitor Sport Fitnes Tracker Ring OLA ESPORTE Smart Ring Your 24/7 Health Guardian Why This Smart Ring? Health Monitoring 24/7 medical heart rate, blood oxygen & blood pressure tracking Sleep Scientist On Your Finger Tracks REM/deep/light cycles with 95% clinical accuracy Personalized sleep score & improvement recommendations Fitness Tracker That Works For You Auto-recognizes 15+ activities (swimming/running/yoga) Real-time GPS route mapping & calorie tracking Tech That Beats The Competition Battery5 days WaterproofIP68 (swim-proof) Perfect For: Health-conscious users - Monitor vital signs daily Fitness lovers - Optimize workouts with precise data Business travelers - Compact health tracking on-the-go What's Included 1 Smart Ring 1 Magnetic Charger 1 User Manual