Stylish 40 mm hybrid smartwatch with timeless analog look and smart features Battery life: up to 5 days in smart mode and up to one additional day in watch mode (hands tell time only) Stay connected with smart notifications for incoming calls, text messages, calendar view and more when paired with your compatible smartphone Know your body better with extensive health monitoring features, including Body Battery energy levels, Pulse Ox, advanced sleep monitoring, stress tracking, women’s health tracking and more (this device is intended to be an estimation of your activity and metrics; it is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition). Connects with your paired smartphone’s GPS to track outdoor walk or run activities; includes additional activity profiles such as yoga, strength, cardio and more Safety and tracking features include Incident Detection (during outdoor walks, runs and bike rides) and Assistance, both of which send a message with your live location to emergency contacts (Requires setup and your smartphone to be in an area with network coverage where data connectivity is available). All-day activity tracking counts steps, calories, sleep and more (this device is intended to be an estimation of your activity and metrics; it is not a medical device) Enhance your style with a metallic dial and accents, available in colors to suit every taste and preference Effortlessly change your look with 20 mm industry standard quick release watch bands Hidden touchscreen display reacts to your movements and is visible only when you need it