R11C Smart Ring with Touch Display - Gesture Control for TikTok/Video Browsing 24/7 Heart Rate & SpO2 Health Monitor 1ATM Waterproof Sleep Tracking - Compatible with Android & iOS Smartphones

Item type: SmarRing. Waterproof Grade: 1ATM. Model Number: R11C. Display screen: Yes. Activity Tracked: Activity Tracker, Steps Tracker, Distance Tracker, Calorie Tracker. Metrics measured: Heart Rate Monitor, Sleep Monitor, Blood Oxygen Monitor, Stress Monitor. Item Weight: About 3.4g. Case Material: STEEL. Certification: ce, FCC. How to measure the size. STEP1: Take a long nan-elastic rope or paper, and wrap it around your finger. STEP 2: Make the rope or paper fit closely to your fingers to avoid being too loose or too tight, which may cause size deviation. STEP 3: Mark the junction part on rope or paper. STEP 4: Lay the rope or paper flat, and measure the length. It is recommended to measure multiple times for more accurate data. The future at your fingertips. Smart Display Screen Intelligent Touch Extra-long battery life. Long battery lifetime. Intelligent screen. Precision Sensor Monitoring Technology. Health Management. 1ATM waterproof. Lightweight and comfortable to wear. Multi