Fitbit Charge 4: GPS Tracker for Fitness and Activity, Heart Rate Monitor, Sleep & Swim Tracking

About this item

• Use 24x7 heart rate to track resting heart rate & better measure calorie burn. Syncing to mobile devices requires Bluetooth LE and internet connection. Syncs with Mac OS X 12.2 and up, iPhone 5S and later, iPad 5 gen. and later, Android 7.0 and later
• Track workouts in real-time with 20 plus goal-based exercise modes. It’s also swimproof and water resistant to 50 Meters, so you can track swims, wear in the shower and more
• Utilize the integrated GPS to monitor your speed and distance in real-time during outdoor activities such as running, cycling, and hiking. View a visual representation of your heart rate fluctuations along your path with a workout intensity map within the application.
• With Active Zone Minutes, feel a buzz when you reach your target heart rate zones during exercise, and celebrate when you earn extra minutes outside of exercise
• Multi-day battery lasts up to 7 days and up to 5 hours when using built-in GPS (varies with use & other factors). Track sleep stages & review your in-app Sleep Score for an easy way to see how well you slept
• Track your skin temperature each night to see how it varies from your personal baseline (Not available in all markets. Only available in the Fitbit app and only displays variation. Not intended for medical purposes)
• See your SpO2 nightly average and range on wrist, and view trends over the past week in the Fitbit app (SpO2 is not available in all markets. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose)