- Item width: 1 centimeter - Long lasting battery for travel and daily use: no need to recharge daily. With a 15 day battery life, you can stay powered up during a two week trip without worrying about finding a charger. - 24/7 heart rate monitoring with high heart rate alerts: continuous heart rate tracking helps you stay aware of your cardiovascular status and receive warnings if your heart rate rises above safe levels. - Sleep stage tracking and insights: monitors different stages of your sleep and provides guidance to help you improve your sleep habits. - Daily nap tracking: a special feature to track your 20 minute naps each day, helping you manage rest and recovery. - 11 built-in sports modes for comprehensive activity tracking: record data such as distance, speed, heart rate changes, and calories burned during workouts to evaluate performance and progress. - Use case: extended travel or busy schedules without frequent charging: rely on the long battery life to stay powered on through trips or long days without constant charging. - Use case: fitness and training monitoring: choose from multiple sports modes to collect key workout metrics like distance, speed, and calories burned for better training decisions. - Use case: sleep and rest optimization: analyze sleep stages and nap activity to identify ways to improve rest quality and daily recovery.