Stylish, convenient and durable, 24/7 complete health-data tracking, Light WeightThe worlds first smart wristband that can detect Pulse Transit Time and blood pressure, providing the wearer with real-time measurements simply by placing a finger on the sensor.- Compact, lightweight but powerful: Weighing less than 30 grams, built-in medical-grade ECG and PPG sensors, continuously monitor your vitals with you all day.- 24/7 complete health-data tracking: Measuring your Pulse Transit Time index, heart rate, blood-oxygen(SpO2), de-stress level, understand your health status, anytime, anywhere.- Sleep Quality Tracking: Measure and analyze sleep duration, sleep stages, snoring patterns and body movement for an insightful look into how well you sleep.- Activity & Exercise: Jogging, swimming, yogaetc., supported 9 popular sports mode, daily step count and calorie burned, tracking workouts and view activity maps and stats, stay healthy and stay fit.- Built in GPS chipset: Multiple GPS systems