Operating system Android Wear Memory storage capacity 4 GB Special features Time Display, Sleep, GPS, Heart Rate Monitor Connectivity technology Bluetooth Wireless communication standard Bluetooth, 802.11bgn About this item ✅Advanced health monitoring: Tracks heart rate, blood oxygen, stress level, and sleep quality. ✅Mind & Body Readiness Analysis: Provides a score based on your physiological and mental state, indicating your readiness for activity. ✅Body composition measurement: Analyzes eight body composition metrics including body fat, muscle mass, water percentage, bone mass, protein percentage, BMI, and basal metabolic rate. ✅150+ sports modes: Tracks real-time data for various activities like running, cycling, swimming, and more. ✅Sleep tracking: Analyzes sleep stages and provides insights into sleep quality.