Easy-to-use, comfortable smart fitness tracker, once setup through the Garmin Connect app, has a touchscreen and button interface plus a brighter, bigger display than vívosmart 4 for larger text.Supported Application:Heart Rate Monitor,Sleep Monitor,GPS,Fitness Tracker,Contacts,Messages,Calendar. Connectivity technology:Bluetooth. Get an uninterrupted picture of your health with up to 7 days of battery life in smartwatch mode; safe for swimming and showering, too Understand your body by monitoring your respiration, Pulse Ox (Pulse Ox not available in all countries; it is not a medical device), Body Battery energy levels, women’s health, hydration, stress and heart rate (This device is intended to give an estimate of your activity and metrics) with low and high heart rate alerts once set up through the Garmin Connect app Get a score for your sleep quality, plus get further insights on how to improve your sleep via the Garmin Connect app Reach your fitness goals through fitness age, step tracking, calories burned, intensity minutes and more Built-in sports apps feature activity profiles such as walking, running, yoga, cardio, pool swim and more Connects to your smartphone’s GPS to track outdoor walks, runs and rides Stay connected with smart notifications for incoming calls, text messages, calendar view and more when paired with your smartphone When connected to your smartphone, incident detection (during select outdoor activities) and Assistance sends messages and live location information to emergency contacts (Requires setup and your smartphone to be in an area with network coverage where data connectivity is available) Interchangeable bands provide user-friendly designs, making band replacements easy and convenient