ASUS VivoWatch 5 (HC-B05) Intelligent wearable health tracker that offers 24/7 health, fitness and sleep monitoring, plus smart insights to help you maintain a healthy lifestyle. 24/7 health-data tracking: Check your pulse-transit time (PTT), heart rate, body harmony index, de-stress level, sleep and activity to stay informed about your health. Respiration and temperature monitoring: Track key indicators, such as blood-oxygen (SpO2) level and skin temperature, to help understand how well your body is coping with everyday life. Sleep quality: Measure and analyze sleep duration, sleep stages, snoring patterns and body movement for an insightful look into how well you sleep. Fitness tracking: Track workouts and view activity maps and stats, such as speed, distance, altitude and duration. Personalized health insights: Benefit from the exclusive ASUS HealthAI technology in the ASUS HealthConnect app, and receive personalized health advice and health-management tips. Stylish, convenient and durable: Enjoy a stainless-steel case, quick-release watch strap, up to 14-day battery life and a swim-proof design. Display High-reflective color LCD Sensor Sensors: x2 ECG (electricalgraphy), x2 PPG (photoplethysmography), x2 infrared, temperature, activity Sensors: gravity sensor, GPS, altimeter, gyroscope Bluetooth Bluetooth 4. 2 or Later (connect to android and iOS phone) Sync Android 4. 4 or Later iOS 11. 0 or Later. Power Consumption 10 days (typical usage), and 14 days (power saving mode) Water resistance 5 ATM Strap Size 22mm Weight 52 g (without strap), 74 g (with silicone strap) Battery Capacity: 300 mA, charging cable connected by USB Features Wellness: (1) step (2) calories burned (3) sleep quality (snoring tracking, sleep time, flips times, average heart rate, comfort sleep index) Health tracking. : (1) heart rate (2) De-stress level (3) PTT index (4)Pulse O2 level (5)Body harmony Health management in ASUS HealthConnect APP: Family share, blood pressure management and medicine-taking reminder (by manual input).