D SHR Finger Health Ring Heart Rate Blood Pressure Monitoring 5ATM Waterproof App Control Fitness Tracker Smart Ring

D SHR Finger Health Ring Heart Rate Blood Pressure Monitoring 5ATM Waterproof App Control Fitness Tracker Smart Ring. Ring size. No.8 18.1mm, No.9 18.9, No.10 19.8mm, No.11 20.6mm. Color: Deep Grey, Rose Gold. Major function. Steps, distance, calorie calculation Heart rate, blood oxygen saturation, pressure, sleep tracking, multiple sports modes. Waterproof. 5ATM. Features: App Control. Function: Sleep Tracker. Function: 24 hour instruction. Function: Fitness Tracker. Function: Heart Rate Tracker. Function: Passometer. Function: Speed Measurement. Function: Mood Tracker. Function: Lighting. Function: Gesture Control. Use: Heart Rate, Sport, Blood Oxygen, Pressure. Size: 8.5*3mm. Battery: 17mAh.