Fitbit Charge 4 Fitness TrackerBuy Fitbit Charge 4 Fitness Tracker in Bangladesh from Gadgetoo.com.bd.Use built-in GPS to see your pace and distance on screen during outdoor runs, rides, hikes and more and see a workout intensity map in the app that shows your heart rate changes along your routeWith 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 exerciseUse 24/7 heart rate to track resting heart rate & better measure calorie burnPlay your favorite songs and playlists with Spotify app controls on your wrist and make secure purchases with Fitbit PayTrack workouts in real-time with 20 goal-based exercise modes. It’s also swim proof and water resistant to 50M so you can track swims, wear in the shower and moreMulti-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 sleptGet call, text and smartphone app notifications on your wrist. Plus, send quick replies to texts (Android only). Available when your phone is nearbyFind Out More smart-wristbands
